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Chapter 14 — General Regulations›Article 3 — Supplemental Development Regulations

San Diego Municipal Code Div. 3 Supplemental Neighborhood Development Permit

San Diego Municipal Code · 2026-10 edition · updated 2026-10-18 · San Diego

Cite as: San Diego Municipal Code Division 3 · Text as of 2026-10-18

and Site Development Permit Regulations (Added 12-9-1997 by O-18451 N.S.; effective 1-1-2000.)

§143.0301 Purpose of Supplemental Neighborhood Development Permit and Site

Development Permit Regulations The purpose of these regulations is to provide standards for the evaluation of projects which, because of their size, location, community significance, or other identified characteristic, are required to obtain a Neighborhood Development Permit or Site Development Permit. It is intended that these supplemental regulations, in combination with the development regulations of the applicable zone, create the type of development envisioned by the applicable land use plan. (Added 12-9-1997 by O-18451 N.S.; effective 1-1-2000.)

Exceptions & meaning →

§143.0302 When Supplemental Neighborhood Development Permit and Site Development

Permit Regulations Apply

This Division applies to any development proposal for which a Neighborhood Development Permit or Site Development Permit is required as described in Sections 126.0402 and 126.0502, in accordance with Table 143-03A.

Legend for Table 143-03A

NDP NeighborhoodDevelopmentPermit
SDP Site Development Permit

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San Diego Municipal Code Chapter 14: General Regulations (3-2026)

Table 143-03A

Supplemental Neighborhood Development Permit or Site Development Permit Regulations Applicability

TypeofDevelopment Proposal ApplicableSections Required Development Permit/Decision Process
Affordable housing, in-fill projects, and sustainable buildings projects as described in Section 143.0915 where a Site Development Permit or Planned Development Permit would otherwise be required. 126.0503, 126.0603, 143.0303, 143.0305, 143.0910, 143.0915, 143.0920 NDP/Process Two
Development of a_large_ retail establishment of 50,000 or more square feet gross floor area in all commercial, industrial, and mixed-use zones, and in all planned districts, except the Centre City Planned District 143.0303, 143.0305, 143.0355, 143.0375 NDP/Process Two
Development of a_large_ retail establishment of 100,000 or more square feet_gross floor area_ in all commercial, industrial, and mixed-use zones, and in all planned districts 143.0303, 143.0305, 143.0355, 143.0375 SDP/Process Four
Site Containing Environmentally Sensitive Lands 143.0101-143.0160, 143.0303, 143.0305, 143.0350, 143.0375, 143.0380 NDP/Process Two or SDP/Process Three or Four
Any_ capital improvement_ program project on a Site Containing Environmentally Sensitive Lands 143.0101-143.0160, 143.0303, 143.0305, 143.0350, 143.0375, 143.0380 SDP/Process CIP- Two or SDP/Process CIP-Five

Ch. Art. Div. 14 3 3 2

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

TypeofDevelopment Proposal ApplicableSections Required Development Permit/Decision Process
Any_capital improvement_ program project on a Site Containing_Historical_ Resources 143.0201, 143.0260, 143.0303, 143.0305, 143.0360, 143.0375, 143.0380 SDP/Process CIP- Two or SDP/Process CIP-Five
Site Containing_Historical_ Resources 143.0201, 143.0240, 143.0260, 143.0303, 143.0305, 143.0360, 143.0375, 143.0380 NDP/Process Two or SDP/Process Four
Fences or_Retaining Walls_ Exceeding the Permitted Height 143.0303, 143.0305, 142.0350, 143.0375 NDP/Process Two
Relocated Building Onto a Site With an Existing Building 143.0303, 143.0305, 143.0345, 143.0375 NDP/Process Two
Site with_Previously_ Conforming Conditions 127.0102-127.0106, 143.0303, 143.0305, 143.0375 NDP/Process Two
Nonresidental_Development_ Exceeding the Maximum Permitted Parking 142.0540(b), 143.0303, 143.0305, 143.0375 NDP/Process Two
Shared Parking for Uses Not Listed in Section 142.0545(c) 142.0545(b)(7), 143.0303, 143.0305, 143.0375 NDP/Process Two
Previously Conforming Parking for a discontinued use 142.0510(d)(4), 143.0303, 143.0305, 143.0375 NDP/Process Two
Mobilehome Parks in RM Zones 143.0303, 143.0305, 143.0340, 143.0375 NDP/Process Two
_ Mobilehome Parks_ in RS, RX Zones 143.0303, 143.0305, 143.0340, 143.0375 SDP/Process Three
Discontinuance of Mobilehome Park 143.0610-143.0640, 132.0701-132.0705, 143.0303, 143.0305, 143.0375 SDP/Process Three
Multiple Dwelling Unit Development that Varies from Minimum Parking Requirements 142.0525(b), 143.0303, 143.0305, 143.0375, 143.0380 SDP/Process Three

Ch. Art. Div. 14 3 3 3

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

TypeofDevelopment Proposal ApplicableSections Required Development Permit/Decision Process
Nonresidental_Development_ (With TDM Plan) that Varies from Minimum Parking Requirements 142.0525(b), 143.0303, 143.0305, 143.0375, 143.0380 SDP/Process Three
Community Plan Implementation Overlay Zone 132.1401-132.1405, 143.0303, 143.0305, 143.0375,143.0380 SDP/Process Three
Mission Trails Design District 132.1201-132.1205, 143.0303, 143.0305, 143.0375,143.0380 SDP/Process Three
Development of a small_lot_ subdivision in accordance with Section 143.0365 143.0303, 143.0305, 143.0310, 143.0365, 143.0375 SDP/Process Three
Development Within the Urban Village Overlay Zone 132.1101-132.1110, 143.0303, 143.0305, 143.0375, 143.0380 SDP/Process Three
Public improvements on More Than 3,000 Feet of Frontage or Where City Standards Do Not Apply 142.0601-142.0670, 143.0303, 143.0305, 143.0375,143.0380 SDP/Process Three
Any_ capital improvement_ _program project_on More Than 3,000 Feet of Frontage or Where City Standards Do Not Apply 142.0601-142.0670, 143.0303, 143.0305, 143.0375,143.0380 SDP/Process CIP- Two
Manufactured Slopes in Excess of 25% Gradient and 25 Feet in Height 142.0101-142.0149, 143.0303, 143.0305, 143.0375,143.0380 SDP/Process Three
Condominium Conversions with Deviations from Development Regulations 143.0303, 143.0305, 143.0360, 143.0375 SDP/Process Four
Clairemont Mesa Height Limit Overlay Zone 132.1301-132.1306, 143.0303, 143.0305, 143.0375,143.0380 SDP/Process Five

Ch. Art. Div. 14 3 3 4

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

TypeofDevelopment Proposal ApplicableSections Required Development Permit/Decision Process
_Development_requesting a deviation from the Climate Action Plan Consistency Regulations in Chapter 14, Article 3, Division 14. 143.0303, 143.0305, 143.0375 NDP/Process Two
Community Enhancement Overlay Zone 132.1601-132.1635, 143.0303, 143.0305, 143.0375,143.0380 SDP/Process Three

(Amended 6-3-2003 by O-19186 N.S.) (Amended 2-9-2006 by O-19461 N.S.; effective 3-9-2006.) (Amended 7-5-2006 by O-19505 N.S.; effective 8-5-2006.) (Amended 6-15-2007 by O-19624 N.S.; effective 7-15-2007.) (Amended 11-13-08 by O-19803 N.S; effective 12-13-2008.) (Amended 10-22-2013 by O-20309 N.S.; effective 12-12-2013.) (Amended 5-5-2015 by O-20483 N.S.; effective 6-4-2015) (Amended 4-5-2016 by O-20634 N.S.; effective 5-5-2016.) (Amended 9-15-2017 by O-20856 N.S.; effective 10-20-2017.) (Amended 3-22-2018 by O-20920 N.S.; effective 4-21-2018.) (Amended 8-9-2019 by O-21114 N.S.; effective 9-8-2019.) (Amended 9-12-2019 by O-21118 N.S.; effective 10-12-2019.) (Amended 1-8-2020 by O-21164 N.S.; effective 2-9-2020.) (Amended 10-30-2020 by O-21254 N.S.; effective 11-29-2020.) (Amended 9-21-2022 by O-21528 N.S; effective 10-23-2022.) (Amended 1-21-2026 by O-22050 N.S.; effective 3-22-2026.)

[Editors Note: Amendments as adopted by O-22050 N.S. will not apply within the Coastal Overlay Zone until the California Coastal Commission certifies it as a Local Coastal Program Amendment. Click the link to view the Strikeout Ordinance highlighting changes to prior language http://docs.sandiego.gov/municode_strikeout_ord/O-22050-SO.pdf ]

Ch. Art. Div.
14 3 3 5

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

Exceptions & meaning →

§143.0303 Permitted Uses with Neighborhood Development Permits and Site Development

Permits The following regulations apply to all Neighborhood Development Permits or Site Development Permits. (a) The uses permitted with a Neighborhood Development Permit or Site Development Permit are those uses permitted by the applicable zone, unless otherwise specified in these supplemental regulations. Limited uses and uses requiring a Neighborhood Use Permit or Conditional Use Permit are permitted subject to the requirements of the applicable zone. A Neighborhood Development Permit or Site Development Permit may not be used to permit any deviations from the use regulations of the applicable zone.

(b) Changes of use on a premises do not require an amendment of the approved
Neighborhood Development Permit or Site Development Permit if the
proposed use is permitted in the applicable zone and complies with Sections
126.0112 or 126.0113.

(c) After construction of a development in accordance with a Neighborhood
Development Permit or Site Development Permit, proposed uses that require a
Neighborhood Use Permit or Conditional Use Permit may be permitted
without an amendment to the Neighborhood Development Permit or Site
Development Permit, unless the amendment involves exterior modifications
to the premises that are not in substantial conformance with the approved
Neighborhood Development Permit or Site Development Permit.
(Added 12-9-1997 by O-18451 N.S.; effective 1-1-2000.)
(Amended 1-8-2020 by O-21161 N.S.; effective 2-9-2020.)

Exceptions & meaning →

§143.0305 Applicable Development Regulations for All Neighborhood Development

Permits and Site Development Permits All projects for which a Neighborhood Development Permit or Site Development Permit is required are subject to the development regulations of the applicable zone, including applicable regulations in Chapter 14, Article 2 (General Development Regulations) and the applicable supplemental regulations as identified in Table 143-03A. Where there is a conflict between the requirements of the applicable zone and the supplemental regulations, the supplemental regulations apply. (Added 12-9-1997 by O-18451 N.S.; effective 1-1-2000.)

Ch. Art. Div. 14 3 3 6

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

Exceptions & meaning →

§143.0310 Supplemental Site Development Permit Regulations for Residential

Development Development subject to this section, as indicated on Table 143-03A, is subject to the following supplemental regulations in addition to any other regulations of the applicable zone and this division. (a) Development is subject to the land use and density regulations of the applicable land use plan in effect for the premises. (b) Density and Intensity

(1) The number of dwelling units or gross floor area proposed on the
premises shall not exceed that set forth by the applicable zone and the
applicable land use plan and shall be based on the area of the entire
premises. The dwelling units and gross floor area may be distributed
without regard to the proposed lot boundaries.

(2) If the premises is located in two or more zones, the maximum number
of dwelling units or the gross floor area permitted on the premises
shall be the sum of the dwelling units or the gross floor area permitted
in each of the zones and may be distributed without regard to the zone.

(3) If the proposed development includes property that is shown as part of
an open space system on the applicable land use plan and is accepted
by the City as dedicated open space, that portion of the property may
be included in the calculation of the overall project density using the
density of the base zone.

(4) The areas of the premises that are designated for streets or private
streets may not be used in the calculation of maximum density.

(5) The areas of the premises that are designated for private drives may be
used in the calculation of maximum density.

(c) Parking and Access

(1) Identified pedestrian access shall be provided from all building
entrances to the public right-of-way.

(2) Parking areas and vehicular access drives shall be located to minimize
impacts to pedestrian circulation, public street systems, and adjacent
properties.

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14 3 3 7

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

(d) Public Transportation

Access to or improvements for public transportation shall be provided as required by the Metropolitan Transit Development Board.

(e) Fences and Walls

(1) All perimeter fences and walls shall be designed to be an integral part
of the overall project design.

(2) Fences and walls that are generally parallel to the public right-of-way
and that exceed 100 feet in length shall be articulated with vertical
elements spaced at no more than 25 feet on center. The vertical
elements shall be a minimum of 12 inches wide.

(f) Accessory Structures

Accessory structures within the development shall be architecturally
consistent with the primary buildings on the premises.

(g) Open Space

(1) If the premises is located in two or more residential zones, the amount
of open space required is the sum of the open space required in each of
the residential zones and may be distributed with out regard to the
zone boundaries.

(2) All common open space intended for active use must be moderately
level land with an overall gradient not exceeding 10 percent and
located so that it is readily accessible to the occupants, employees, and
guests of the development.

(3) For multiple dwelling unit projects, at least 300 square feet of the total
common open space required by the applicable zone shall be located
in a single common area with no dimension less than 15 feet in any
direction. Additionally, proposed developments exceeding 10 dwelling
units shall contain, within the common area, at least one of the
following recreational amenities: a tot lot, a barbecue area with picnic
table and shade structure, a sport court or field, a swimming pool, or a
golf course.

Ch. Art. Div. 14 3 3 8

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

(4) Recreational facilities shall be designed to serve only the occupants
and guests of the development.
(Added 12-9-1997 by O-18451 N.S.; effective 1-1-2000.)

Exceptions & meaning →

§143.0340 Supplemental Neighborhood Development Permit and Site Development Permit

Regulations for Mobilehome Parks

The following supplemental regulations apply to Neighborhood Development Permits
and Site Development Permits for mobilehome parks.

(a) Maximum Density

(1) Within the RM zones, the maximum density is one dwelling unit per
3,000 square feet of lot area.
(2) Within the RS and RX zones, the maximum number of dwelling units
is that permitted by the applicable zone. The dwelling units are not
required to be located on individual lots within the mobilehome park.

(3) The maximum permitted density may be exceeded in accordance with
Chapter 14, Article 3, Division 7 (Affordable Housing Regulations).

(b) Minimum Size of Mobilehome Park

The minimum size of a mobilehome park is 3 acres.

(c) Minimum Space Area for each Mobilehome

(1) For each single-section unit, the minimum space area is 1,600 square
feet.

(2) For each multi-section unit, the minimum space area is 2,000 square
feet.

(d) Minimum Dimensions of a Mobilehome Park

(1) The minimum lot width of the mobilehome park is 100 feet.

(2) The minimum lot depth of the mobilehome park is 100 feet.

(e) Minimum Width of Individual Mobilehome Space

The minimum width dimension for individual mobilehome spaces is 26 feet.

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14 3 3 9

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

(f) Perimeter Buffer Requirement

A 20-foot-wide buffer shall be provided on the perimeter of the mobilehome
park, except for vehicular and pedestrian access points, and shall consist of a
combination of landscaping, berms, and low decorative walls, sufficient to
screen the mobilehome park from adjacent properties.

(g) Pedestrian Access
Where applicable, pedestrian access shall be provided between the
mobilehome park and adjacent land uses, consistent with the Transit Oriented
Development Guidelines of the Land Development Manual.
(h) Minimum Setback Requirements for Individual Mobilehome Spaces
Individual mobilehome spaces shall observe the setbacks as set forth in Table
143-03B.

Table 143-03B
Mobilehome Space Setback Requirements

Description Setback
Front_Mobilehome_ Space_Setback_ 8 feet, measured from a private drive within the mobilehome park
Side_Mobilehome_ Space_Setback_ 4 feet 0-foot is permitted provided the opposite side mobilehome space_setback_ is at least 8 feet
Private Street Side_Mobilehome_ Space Setback 8 feet, measured from a private drive within the mobilehome park
Rear_Mobilehome_ Space_Setback_ 3 feet 8 feet if abutting a private drive

(i) Maximum Coverage
The maximum permitted coverage for individual mobilehome spaces is 75
percent, including the mobilehome and any other enclosed structures.

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San Diego Municipal Code Chapter 14: General Regulations (3-2026)

(j) Common Area Open Space and Recreational Amenities
(1) At least 250 square feet of usable common open space is required for
each mobilehome, not including driveways, walks, streets, parking and
service areas. The common usable open space shall have no
dimension less than 25 feet or at least 10 percent of the gross project
area shall be devoted to usable common open space and active-use
recreational facilities.
(2) Common area open space requirements shall be separate from the
perimeter buffer requirement.

(k) Required Resident Parking

Two parking spaces are required per mobilehome space, subject to the
following:

(1) At least one required parking space must be located on the
mobilehome space;

(2) Required parking located off of a mobilehome space must be sited
within 200 feet from the home it is intended to serve; and

(3) If both parking spaces are provided on the mobilehome space, the
parking may be provided in tandem.

(l) Required Guest Parking

There shall be 0.20 guest parking spaces provided for each mobilehome space
in addition to the required resident parking spaces. The required guest spaces
shall be evenly distributed throughout the mobilehome park.

(m) Carport Requirement

Each mobilehome space shall contain at least one single-car carport or fully
enclosed garage. All carports shall include at least 50 square feet of built-in
storage area.

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14 3 3 11

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

(n) Landscaping Requirement

Landscaping is required as part of the perimeter buffer requirement and
common open space requirements. Additionally, at least 25 percent of the
total area of the required front, side, and rear yards on individual mobilehome
spaces shall be landscaped with a combination of grass, shrubs, and trees.

(o) Required Refuse Collection Area

A refuse storage space that is screened from public view shall be provided for
each individual mobilehome space and each common open space area that
contains recreation facilities.

(p) Minimum Street-Width and Sidewalk Requirement

(1) Private drives internal to the mobilehome park shall be at least 32 feet
wide if car parking is permitted on only one side of the street.

(2) Private drives internal to the mobilehome park shall be at least 40 feet
wide if car parking is permitted on both sides of the street.

(3) Private drives internal to the mobilehome park shall be at least 20 feet
wide if car parking is not permitted on either side of the street.

(4) Paved sidewalks that are at least 4 feet wide shall be provided on at
least one side of every street in the mobilehome park.

(q) Mobilehome Separation Requirements

Mobilehomes shall be separated from other mobilehomes by at least the
following dimensions, measured from structure to structure:

(1) 8 feet from side to side;

(2) 8 feet from side to front or rear; and

(3) 6 feet from rear to rear, or front to front, or front to rear.

(r) Projections and Overhangs

(1) Projections, including roof overhangs, may encroach into the required
mobilehome space setback areas that are not adjacent to private drives,
provided they are no closer than 3 feet to the boundary line of the
mobilehome space.

Ch. Art. Div. 14 3 3 12

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

(2) Projections, including roof overhangs, may encroach into the required mobilehome space setback area or mobilehome separation area, provided that a minimum 6-foot separation is maintained between the edge of the projection and an adjacent mobilehome, building, accessory structure, or its projection. A minimum distance of 3 feet must be maintained from the mobilehome projection and the adjacent mobilehome space boundary.

(s) Additional Regulations

(1) Siding shall be of nonreflective material.

(2) Roofing shall be of nonreflective material consisting of concrete tiles;
fiberglass shingles; or composition shingles, shakes, or tiles.

(3) Eaves shall be between 12 and 16 inches in length, measured from the
vertical side of the exterior wall.

(4) All site-added structures including steps, stoops, porches, and parking
structures shall conform to the applicable provisions of the Uniform
Building Code.

(5) The exterior of the perimeter of all foundations shall conform to the
applicable provisions of the Uniform Building Code and shall consist
of poured concrete, masonry, or approved all-weather material. If the
perimeter material is not masonry or concrete, it shall match the siding
material of the mobilehome.

(t) Discontinuance Policy

Discontinuance of a mobilehome park requires compliance with all
regulations of Chapter 14, Article 3, Division 6 (Mobilehome Park
Discontinuance and Tenant Relocation Regulations).
(Added 12-9-1997 by O-18451 N.S.; effective 1-1-2000.)
(Amended 3-22-2018 by O-20916 N.S.; effective 4-21-2018.)

Ch. Art. Div.
14 3 3 13

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

Exceptions & meaning →

§143.0345 Supplemental Neighborhood Development Permit Regulations for Relocated

Buildings

(a) The following regulations apply to a Neighborhood Development Permit for
any premises to which a building is proposed to be relocated and at least one
existing building on the premises will remain. The proposed development
including the relocated building is subject to all development and use
regulations of the applicable zone.

(b) The placement and design of the relocated building shall be compatible with
other buildings on the premises in terms of building orientation, floor area
ratio, height and number of stories, roof design and composition of roofing
materials, and siding and surface materials type.

(c) The foundation along the exterior perimeter of the relocated building shall
conform to the Building Regulations and shall consist of poured concrete,
masonry, or approved all-weather material. If the foundation material is not
masonry or concrete, it shall match the siding material of the building.
(Added 12-9-1997 by O-18451 N.S.; effective 1-1-2000.)

Exceptions & meaning →

§143.0350 Supplemental Neighborhood Development Permit and Site Development Permit

Regulations for Environmentally Sensitive Lands The following regulations apply to Neighborhood Development Permits and Site Development Permits required because of potential impacts to environmentally sensitive lands in addition to other indicated supplemental regulations.

(a) Lot Dimensions. Deviations may be permitted from the minimum lot
dimensions required by the applicable zone if necessary to comply with
Chapter 14, Article 3, Division 1 (Environmentally Sensitive Lands
Regulations).

(b) Lot Area. Within the MHPA only, a deviation may be permitted from the
minimum lot size requirement of the OR-1-2 zone if necessary to
accommodate development within the development area and facilitate
dedication of the remainder of the premises. This does not permit a deviation
from the maximum permitted residential density for the OR-1-2 zone for the
entire premises.

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San Diego Municipal Code Chapter 14: General Regulations (3-2026)

(c) Setback Requirements. A deviation of up to 20 percent may be permitted from
any required setback if necessary to comply with Chapter 14, Article 3,
Division 1 (Environmentally Sensitive Lands Regulations), except that a
deviation from the front setback in the RS zones shall not be permitted in
addition to what is permitted by Section 131.0443(a)(1), when applicable.
(Added 12-9-1997 by O-18451 N.S.; effective 1-1-2000.)
(Amended 7-22-2024 by O-21836 N.S.; effective 10-5-2024.)

[Editors Note: Amendments as adopted by O-21836 N.S. will not apply within the
Coastal Overlay Zone until the California Coastal Commission certifies it as a Local
Coastal Program Amendment.
Click the link to view the Strikeout Ordinance highlighting changes to prior language
http://docs.sandiego.gov/municode_strikeout_ord/O-21836-SO.pdf ]

Exceptions & meaning →

§143.0355 Supplemental Neighborhood Development Permit and Site Development Permit

Regulations for Large Retail Establishments

The following supplemental regulations apply to development of large retail
establishments. The purpose of these regulations is to provide standards for the
evaluation of large retail establishments. The intent of these regulations is to
minimize development footprint, preserve community character, create a pedestrian
scale environment, and promote a diversity of uses in accordance with the General
Plan.

(a) Minimum Setbacks

A large retail establishment shall have a minimum front and street side
setback of 8 feet. Architectural features as defined in Section 143.0355(b) are
permitted to encroach a maximum of 4 feet into the required front and street
side yards.

(b) Building Articulation

A large retail establishment shall incorporate architectural features from at
least four of the following eight categories:

(1) Pilasters

(2) Trellises

(3) Awnings or extended covered entries

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San Diego Municipal Code Chapter 14: General Regulations (3-2026)

(4) Arcades

(5) Varied roof lines or roof cornices

(6) A minimum of three material changes, such as glazing, tile, stone, or
varied pattern/texture shall be provided in street (facing) wall surfaces,
where no one material shall cover less than 10 percent of the wall area
or more than 60 percent of the wall area.

(7) A minimum of 25 percent of street wall area transparent with clear
glass visible into a commercial use, or a minimum of 25 percent of
street wall area covered with display windows.

(8) Clerestory windows

(c) Pedestrian Paths

Pedestrian access and pathways shall be designed to provide an
interconnected network for pedestrian travel between buildings within the
same development in accordance with Section 131.0550.

(d) Landscaping Requirements

Landscape for large retail establishments shall comply with Sections
142.0404, 142.0405 and 142.0406.

(e) Expansion or Enlargement or Change in Use of Existing Structures Proposed expansion or enlargement or a change in use of a previously conforming large retail establishment is subject to Section 127.0106(e) and the supplemental regulations in Section 143.0355(a) and (c), and Section 142.0410. (Added 6-15-2007 by O-19624 N.S.; effective 7-15-2007.)

Ch. Art. Div. 14 3 3 16

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

Exceptions & meaning →

§143.0360 Supplemental Neighborhood Development Permit and Site Development Permit

Regulations for Historical Resources

The following regulations apply to Neighborhood Development Permits and Site
Development Permits required because of potential impacts to historical resources in
addition to other indicated supplemental regulations.

(a) For development on sites containing traditional cultural properties or
important archaeological sites, a deviation from one or more of the
development regulations of the base zone may be approved to reduce impacts
to the resource, subject to the regulations in Section 126.0404.

(b) For sites that receive a relocated designated historical resource through a Site
Development Permit in accordance with Sections 126.0505(h), 143.0210, and
143.0250, a deviation from one or more of the development regulations of the
base zone may be approved in order to accommodate the designated historical
resource on the new site in a manner consistent with the U.S. Secretary of the
Interior’s Standards and Guidelines for the Treatment of Historic Properties,
subject to the regulations in Section 126.0504.

(c) For development proposing substantial alteration (other than relocation) or
demolition of a designated historical resource, deviations from the
development regulations of the base zone may not be approved under
Section 143.0240.
(Added 12-9-1997 by O-18451 N.S.; effective 1-1-2000.)
(Amended 3-22-2018 by O-20920 N.S.; effective 4-21-2018.)

Exceptions & meaning →

§143.0365 Supplemental Site Development Permit Regulations for Small Lot Subdivisions

The purpose of these regulations is to provide supplemental regulations for development of single dwelling units in a small lot subdivision.

A small lot subdivision is the subdivision of multi-family zoned land, consistent with
the density of the zone, for the construction of single dwelling units.

The intent is to encourage development of single dwelling units on small lots in order
to provide a space-efficient and economical alternative to traditional single dwelling
unit development. It is also the intent of these regulations to provide pedestrian-
friendly developments that are consistent with the neighborhood character.

Ch. Art. Div.
14 3 3 17

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

The following supplemental regulations apply to a Site Development Permit for a
small lot subdivision.

(a) A small lot subdivision development is permitted in the RM-1-1 through RM-
3-8 (Residential Multiple Unit) Zones, and zones with comparable density in
the Planned Districts regulated in Chapter 15.

(b) A dwelling unit may have a maximum of three bedrooms.

(c) A small lot subdivision development shall comply with the regulations in
Table 143-03C and the supplemental regulations in this section.

Ch. Art. Div. 14 3 3 18

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

Table 143-03C

Development Regulations for Small Lot Subdivisions

Maxpermitteddensitypre-subdividedlotdwellingunits(DU)perlot

Pre-subdivided_lot_ per the base zone
Subdivided_lot_ 1
Minlot area square feet(sf) --
Minlot dimensions Minlot dimensions
Pre-subdivided_lot_ Pre-subdivided_lot_
Lot width(ft) 25
Lot depth(ft) 50
_Street Frontage _(ft) [See Section 131.0442(a)] 25
Subdivided_lot_ Subdivided_lot_
Lot width(ft) --
Lot depth(ft) --
_Street Frontage _(ft) [See Section 131.0442(a)] --
Setback requirements per the base zone(1)
_Maximum lot coverage _ --
Setback requirements for resubdivided cornerlots [See Section 113.0246(f)] applies
Max**structure height **(ft) Max**structure height **(ft)
RM-1-1, RM-1-2, and RM-1-3 36(2, 5)
RM-2-4, RM-2-5, and RM-2-6 40(3, 5)
RM-3-7, RM-3-8, and RM-3-9 40(5)
**Lot coverage for sloping ****lots** [See Section 131.0445(a)] applies
Maxfloor area ratio per the base zone(4)
Accessory uses andstructures[See Section 131.0448(a),(b)] applies
Garage regulations [See Section 131.0449(a)] applies
**Building spacing **[See Section 131.0450] --
Max thirdstory dimensions[See Section 131.0460] --
Architecturalprojections andencroachments [See Section 131.0461(a)] applies
Supplemental requirements
RM-1-1, RM-1-2, and RM-1-3[See Section 131.0464(d)] applies
RM-2-4, RM-2-5, and RM-2-6[See Section 131.0464(e)] applies
RM-3-7 and RM-3-8[See Section 131.0464(e)] applies
**Refuse and Recyclable Material Storage **[See Section 142.0805] applies

Ch. Art. Div. 14 3 3 19

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

Footnotes for Table 143-03C

1 Only the setbacks that apply to the pre-subdivided lot apply, except that if the pre-subdivided small lot subdivision development covers more than one lot, the setback shall not be required for internal lot lines of the pre-subdivided lot.

2 Section 131.0444(e) only applies to the building envelope at the front and side setback lines of the pre- subdivided lot. When adjacent to a RS (Residential--Single Unit Zone), the maximum height is 30 feet.

3 Section 131.0444(f) only applies to the building envelope at the front and side setback lines of the pre- subdivided lot.

4 Per the base zone, except that reservation of floor area ratio for parking shall not be required.

5 Within the Coastal Height Limit Overlay Zone in the Peninsula Community Plan area, the base zone maximum structure height shall be 30 feet, which shall be determined in accordance with Section 113.0270(a)(4)(D).

(d) Required exterior open space.

(1) Each dwelling unit shall provide a minimum of 200 square feet of
exterior open space within the small lot subdivision.

(2) Each dwelling unit shall provide a minimum of one private exterior useable open space area measuring 60 square feet, with a minimum dimension of no less than 6 feet.

(3) The area of a driveway shall not be counted toward required exterior
open space.

(e) Dwelling units that abut the front yard of the pre-subdivided lot shall locate
the primary pedestrian entrance facing that front yard.

(f) A Mutual Maintenance and Access Agreement for all facilities used in
common shall be entered into to the satisfaction of the City Manager and shall
be recorded against the applicable property or properties in the office of the
San Diego County Recorder prior to issuance of a certificate of occupancy.

The Mutual Maintenance and Access Agreement shall, at a minimum, include
and provide for the following:

Ch. Art. Div. 14 3 3 20

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

(1) Easements for:

(A) Shared driveway(s)

(B) Utilities

(C) Drainage and runoff

(D) Encroachments

(E) Maintenance, repair, and reconstruction

(2) Maintenance for:

(A) Shared driveway(s)

(B) Sewer lines

(C) Cable and electrical lines

(D) Exterior lighting

(E) Perimeter fences

(g) When an alley abuts the premises, access to required off-street parking spaces
shall only be from the alley.

(h) Parking requirements and parking site design shall comply with the following
regulations and Chapter 14, Article 2, Division 5 (Parking Regulations) for
single dwelling units. Where there is a conflict with Chapter 14, Article 2,
Division 5, the requirements of this section shall apply.

(1) The number of off-street parking spaces shall be consistent with the
ratios for small lot subdivision in Table 142-05C.

(2) Required parking shall be provided on each lot, or within a common
parking area, or in a combination of the two.

(3) Tandem parking is permitted, provided that the tandem spaces are
assigned to the same dwelling unit.

(4) A maximum of one driveway curb cut shall be permitted for each 50
feet of pre-subdivided street frontage.

Ch. Art. Div. 14 3 3 21

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

(5) Driveway width shall be determined based on the size of the lot, the
number of parking spaces and location inside or outside of the Parking
Impact Overlay Zone. The applicable minimum and maximum
driveway widths are shown in Table 143-03D.

(6) Required off-street parking spaces may be provided within a garage, a
carport, or an unenclosed parking space.

Table 143-03D
Driveway Width for Small Lot Subdivisions

Pre-subdivided lots greater than 50 feet in width

Off -street ParkingSpacesin Small LotSubdivision Required Width
One-Way Two-Way
10 or fewer 12 feet 12 feet
More than 10 14 feet 20 feet

Pre-subdivided lots 50 feet or less in width

Off -street ParkingSpacesin Small LotSubdivision Required Width
One-Way Two-Way
10 or fewer 12 feet 12 feet
More than 10 14 feet 20 feet

(i) The landscape requirements shall be in accordance with the requirements for
small lot subdivisions shown in Section 142.0402, Table 142-04A.

(j) An existing development that proposes to be subdivided into a small lot
subdivision that deviates from the supplemental regulations set forth in this
section or the parking ratios shown in Table 142-05C may be permitted only
with a Site Development Permit decided in accordance with Process Three
subject to the following regulations:

Ch. Art. Div. 14 3 3 22

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

(1) the development must be consistent with permitted density; and

(2) the development must comply with the requirement for a Mutual
Maintenance and Access Agreement in Section 143.0365(f ).
(“Supplemental Site Development Permit Regulations for Small Lot Subdivisions”
added 5-5-2015 by O-20483 N.S.; effective 6-4-2015)
(Amended 4-5-2016 by O-20634 N.S.; effective 5-5-2016.)
(Amended 3-22-2018 by O-20917 N.S.; effective 4-21-2018.)

Exceptions & meaning →

§143.0375 Maintenance Requirements for Neighborhood Development Permits and Site

Development Permits

All development approved with a Neighborhood Development Permit or Site
Development Permit is subject to the following regulations.

(a) All developments shall be constructed and maintained in accordance with the
approved plans and conditions contained in the Neighborhood Development
Permit or Site Development Permit, except as provided in Sections 126.0112
or 126.0113.

(b) If a development includes open areas or recreational facilities to be used by
the residents or employees of the development, the permit shall include a plan
for the preservation of the common elements of the property that is acceptable
to the City Manager.
(Added 12-9-1997 by O-18451 N.S.; effective 1-1-2000.)
(Amended 1-8-2020 by O-21161 N.S.; effective 2-9-2020.)

Ch. Art. Div.
14 3 3 23

San Diego Municipal Code Chapter 14: General Regulations (3-2026)

Exceptions & meaning →

§143.0380 Phased Site Development Permits

Construction of development requiring a Site Development Permit may be phased subject to the following regulations pertaining to each phase of development. Development pursuant to a Neighborhood Development Permit may not be phased.

(a) Where construction is to be phased over a period of time, the applicant shall
provide plans corresponding to each phase at the time of Site Development
Permit submittal and shall include a proposed construction schedule and an
illustration of the various phases of development.

(b) The plans corresponding to each phase shall clearly delineate all fundamental
project elements integral to implementation of that particular phase, including
landscaping, open space, parking, and recreational facilities. Each phase must
assure that the provision of fundamental project elements will correspond with
the demand to provide the associated site facilities and improvements
necessary to support the density or intensity of each phase of development.

(c) The phasing program shall address the interim use of all areas where
development will occur at a later date, including identification of the interim
landscape and irrigation measures to be used to assure that portions of the site
that may be graded or disturbed in the initial phase of project implementation
but not be developed until a later phase, will be adequately mitigated.
(d) Where construction is to be phased over a predetermined period, the phasing
program shall be based on the projected population growth and availability of
public facilities of the designated economic support area.
(Added 12-9-1997 by O-18451 N.S.; effective 1-1-2000.)

Ch. Art. Div. 14 3 3 24

San Diego Municipal Code Chapter 14: General Regulations (2-2025)

Article 3: Supplemental Development Regulations

Exceptions & meaning →

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