San Luis Obispo — Landscaping and Screening

Last reviewed: July 3, 2026

Overview

This page summarizes what the City of San Luis Obispo's Zoning Regulations (Title 17) require for landscaping and screening: how to screen outdoor storage and equipment, fence/wall/hedge rules and heights, water‑efficient landscape submittals and MAWA calculations, creek/setback constraints, and special rules for hillside and overlay areas. The rules live in multiple places in Title 17 (notably § 17.76.100, § 17.70.070, and the Water‑Efficient Landscape Standards), and they interplay with development review, parking, and design review processes. See the code citations in each subsection for the source text and confirm parcel‑specific constraints with the City early in design.

Key ordinance excerpts (short syntheses)

• Screening of visible storage and maintenance: outdoor furniture, building materials, boats/RVs, and similar items visible from a public right‑of‑way must be screened so they are not visible or are behind a solid six‑foot fence, wall, or hedge where allowed by code (§ 17.76.100 ).
• Fences, walls, hedges (general height & setbacks): fences/walls/hedges inside required setbacks must obey the front/street/corner setback height rules shown in the code figures; interior side and rear setbacks generally limited to six feet; outside required setbacks the maximum is eight feet; measurement rules include lower‑side grade and retaining wall stacking rules (§ 17.70.070 and subsections D–F ).
• Water‑efficient landscaping (MAWA and submittals): landscape projects meeting the applicability thresholds must submit MAWA calculations, a landscape plan, irrigation plan, soils management report, grading and stormwater measures, and, at completion, a certification and maintenance schedule; irrigation efficiency target and documentation requirements are spelled out in the Water‑Efficient Landscape Standards (§ 17.70.220; definitions in § 17.158.050/17.158.032) .
• Vision clearance and visibility: fences and hedges must not obstruct intersection sight lines — see the Vision Clearance Triangle rules (§ 17.70.210) .
• Hillside and slope areas: where the S overlay or hillside rules apply, perimeter fences visible off‑site are preferred to be semitransparent (wrought iron, split rail, welded wire) rather than solid; hillside projects are subject to special review and additional findings (§ 17.70.090; S overlay language) .
• Screening mechanical/electrical equipment and trash: exterior mechanical/electrical equipment and trash/recycle enclosures must be screened from public view and integrated into design (Director may grant exceptions) (§ 17.76.050; Neighborhood Preservation § 17.76.060) .

(When the code refers to graphics or “see figure,” check the City’s figures and the official electronic code for the visual setback/height diagrams referenced in the cited sections.)

District-by-district breakdown (San Luis Obispo—Title 17 context)

The ordinance frames landscaping/screening rules as citywide standards, then layers them with zone or overlay requirements. Below are district/overlay subsections that contain code language relevant to landscaping/screening or that change how the general rules are applied. Where a specific zone purpose or detailed dimensional table is not available in the retrieved excerpt, the entry notes that.

Note: district names and bolded terms below are taken from the City’s Title 17 text where they appear; always verify parcel‑specific standards on the official zoning map and development standards tables.

R-1 (Single‑Unit Residential)

• Purpose / typical uses: Not found in retrieved materials for full purpose text (verify with the City).
• Landscaping/screening highlights: driveway gate setback in R-1 must be set back a minimum 20 ft behind the property line (gate queuing) (§ 17.70.070.C.3 ). Usual fence/hedge height rules inside front/street setbacks and interior side/rear setbacks apply (§ 17.70.070; see figures) .
• Where it applies: residential neighborhoods mapped R‑1 on the official zoning map (verify with the City).

C‑N (Neighborhood Commercial)

• Purpose / typical uses: retail and neighborhood services as defined in the C‑N chapter (see C‑N development regs — full use tables not reproduced here) (see Table references in Title 17) (Not all use table text retrieved).
• Landscaping/screening highlights: general fence/hedge height rules apply; rooftop activity hour limits for nonresidential rooftop uses reference C‑N and O zones (nonresidential rooftop hours 7 AM–8 PM without a Minor Use Permit) (§ 17.76.090.C.a ). Landscape requirements for larger projects (MAWA submittal) apply where the water‑efficient thresholds are met (§ 17.70.220 ).
• Where it applies: properties zoned C‑N (see zoning map) — check the C‑N chapter for dimension tables and specific setbacks (§ references for C‑N development tables in Title 17) .

O (Office)

• Purpose / typical uses: office and similar nonresidential uses (full text not in retrieved excerpt).
• Landscaping/screening highlights: rooftop use timing and screening rules apply similarly to C‑N; mechanical equipment screening and performance standards apply to equipment visible from the right‑of‑way (§ 17.76.090; § 17.76.050) .
• Where it applies: properties zoned O on the City’s zoning map.

S‑F (Special Focus) Overlay

• Purpose: the S‑F overlay is intended for areas identified in the General Plan Special Focus chapter and allows customized development/detailed design controls; where a specific plan exists, those landscaping provisions control; otherwise underlying zone standards apply (§ 17.52.010–.030 ).
• Landscaping/screening highlights: the overlay explicitly allows specific landscaping, building siting, and circulation requirements in a specific plan; if the specific plan addresses landscaping, follow that plan rather than default zone rules (§ 17.50.030; § 17.52.030) .

S (Hillside / Special S overlay)

• Purpose: controls development on slopes/ hillsides to protect scenic resources and minimize hazards (see § 17.70.090).
• Landscaping/screening highlights: hillside perimeter fencing visible off‑site should be semitransparent rather than solid; hillside projects must make findings that preserve natural features and landscaping and follow Community Design Guidelines — this affects allowed screening approaches and may require design review (§ 17.70.090; S overlay findings) .
• Where it applies: parcels meeting the average cross‑slope threshold or mapped S overlay areas.

AOZ (Airport Overlay Zone)

• Purpose: to maintain compatibility with airport operations; overlay may include special limitations that can affect landscaping materials or heights (trees, light standards) where they conflict with aviation safety (§ 17.64.010) .
• Landscaping/screening highlights: AOZ can impose restrictions on installations that are hazards to flight (trees, tall screens, lighting). Not all specifics on planting limits were in the retrieved excerpt — verify with the Airport overlay chapter when landscaping near the airport (§ 17.64.010) .

Decision‑relevant standards table

Practical guidance / synthesis

• If you plan new landscaping over the City thresholds, assemble the MAWA calculation, conceptual landscape and irrigation plans, soils management report, grading and stormwater BMPs early — these are required for Development Review and building permits (§ 17.70.220; completion certification required) .
• For screening items visible from the street (junk, RVs, materials, outdoor equipment), design enclosures that meet the 6‑ft screening standard or make them fully out of view; trash/recycle must be concealed from the front/right‑of‑way (Neighborhood Preservation) (§ 17.76.100; § 17.76.050; § 17.76.060) .
• Use semitransparent fences in hillside contexts to meet scenic/edge requirements and reduce the need for variances; where solid privacy fences are desired on hillsides, expect additional findings or Director/Commission review (§ 17.70.090; Director’s Action language) .
• Check the development standards and local zone tables for parcel‑specific setback and height requirements that interact with fence and planting placements; if an overlay or specific plan applies, its landscaping rules will control (§ 17.52.030) .
• Coordinate screening for mechanical equipment and trash with building elevations and site circulation so screening is integrated and meets director‑level review when necessary (§ 17.76.050) .
• Landscaping work adjacent to creeks must follow creek setbacks (20/35/50 ft depending on creek and annexation status) and the allowed accessory uses within setbacks (e.g., walls/fences may be allowed but limited) (§ 17.xx creek setback provisions summarized in Title 17) .
• Landscaping that could conflict with airport operations or the Airport Overlay Zone must be reviewed for hazard/height/lighting restrictions (§ 17.64.010) .
• Familiarize the team with parking layout requirements and integrate perimeter planting/trees with stall and drive aisle design, since parking landscaping requirements are applied during Development Review (§ 17.72 and Development Review criteria) .

Checklist

• Confirm whether project meets Water‑Efficient Landscape Standards thresholds (§ 17.70.220) and prepare MAWA calculation .
• Prepare conceptual landscape and irrigation plans consistent with the City Engineering Standards Uniform Design Criteria (§ 17.70.220) .
• Provide soils management report and grading design and include stormwater BMPs (§ 17.70.220) .
• Design screening for visible storage, mechanical equipment, and trash to comply with 6‑ft screening rule or make it invisible from the public right‑of‑way (§ 17.76.100; § 17.76.050) .
• Check fence/wall height measurements from adjacent grade and retaining wall stacking rules before construction; plan for Director’s Action if exceeding limits (§ 17.70.070.F, D) .
• Verify intersection sightline compliance (vision triangle) for any proposed hedge or wall (§ 17.70.210) .
• If on a hillside or in an overlay (S or S‑F), coordinate with the city on semitransparent fence preferences and design review requirements (§ 17.70.090; § 17.52.030) .
• Submit required documentation for Development Review; be prepared for conditions of approval to require additional landscaping or maintenance bonds (§ 17.106.050; § 17.128) .
• Verify any special restrictions if property is in the AOZ (airport overlay) (§ 17.64.010) .

Risks & Ambiguities

Plain‑English summary

If you’re planning planting, fences, trash enclosures, or screening in San Luis Obispo, design to hide materials and equipment from the street (or use a solid 6‑ft screen where allowed), follow fence height/measurement rules (6 ft typical inside rear/side yards; 8 ft max outside setbacks), and prepare MAWA + landscape/irrigation/soils/grading documents when your project meets the water‑efficient thresholds — hillside, overlay, creek, airport, and specific plan rules can change these basics, so verify with planning staff early (§ 17.76.100; § 17.70.070; § 17.70.220) .

Source References

• § 17.76.100 — Screening of visible storage and maintenance (Title 17) .
• § 17.70.070 — Fences, Walls, and Hedges (heights in setbacks, arbors, measurement rules) .
• § 17.70.220 — Water‑Efficient Landscape Standards (applicability and submittal requirements) .
• § 17.70.210 — Vision Clearance Triangle at Intersections (sightlines) .
• § 17.76.050 / § 17.76.060 — Screening of mechanical equipment; Neighborhood Preservation and maintenance obligations .
• § 17.70.090 — Hillside Development Standards (slope thresholds; scenic protection) .
• § 17.52.010 – .030 — Special Focus (S‑F) Overlay purpose and development standards (specific plan precedence for landscaping) .
• § 17.64.010 — Airport (AOZ) Overlay purpose and applicability (landscape/tree/lighting constraints near airport) .
• Definition: Screening — § 17.158.042 (definition of screening) .
• Development review criteria and conditions (landscape as part of site design): § 17.106.050 .
• Creek setback dimensions and accessory items within creek setback: (creek setback chapter in Title 17; see creek setback text) (creek setback provisions) .

Information Gaps

• Full zone purpose statements and the complete permitted‑use tables for R‑1, C‑N, O, and many other base zones were not included in the retrieved excerpt (Not found in retrieved materials). Verify permitted uses and numeric dimensional tables (lot coverage, FAR, exact front/setback figures for each zone) in the City’s full Title 17 zoning chapters and official zoning map.
• Some figures referenced by § 17.70.070 (front/street setback fence height diagrams) were not reproduced in the provided excerpts — consult the official online Title 17 or City planning counter for those figures.
• Parcel‑specific overlays, specific plans, or development agreements that can change landscape/screening rules are not listed here — verify any PD, specific plan, or recorded development agreement for the parcel (Not found in retrieved materials).

Retrieved passages

• San Luis Obispo Zoning Code (TITLE 17) High relevance show source text
• San Luis Obispo Zoning Code (TITLE 17) High relevance show source text
• San Luis Obispo Zoning Code (TITLE 17) Medium relevance show source text
• CBC § 17.70.050 (Section 17.70.050) Medium relevance show source text
• San Luis Obispo Zoning Code (Chapter S) Medium relevance show source text
• San Luis Obispo Zoning Code (TITLE 17) Medium relevance show source text
• San Luis Obispo Zoning Code (TITLE 17) Medium relevance show source text
• San Luis Obispo Zoning Code (Section 17.xx.xxx.H) Medium relevance show source text
• San Luis Obispo Zoning Code (Chapter 17.XX) High relevance show source text
• CBC § 17 (Section 17.) High relevance show source text
• San Luis Obispo Zoning Code (Chapter S) High relevance show source text
• San Luis Obispo Zoning Code (TITLE 17) Medium relevance show source text
• San Luis Obispo Zoning Code (TITLE 17) Medium relevance show source text
• San Luis Obispo Zoning Code (TITLE 17) Medium relevance show source text
• San Luis Obispo Zoning Code (Chapter 14.01.) Medium relevance show source text
• San Luis Obispo Zoning Code Medium relevance show source text
• San Luis Obispo Zoning Code (Chapter S) Medium relevance show source text

Cited sections

• **§ 17.76.100** — Screening of visible storage and maintenance (Title 17) . (§ 17.76.100)
• **§ 17.70.070** — Fences, Walls, and Hedges (heights in setbacks, arbors, measurement rules) . (§ 17.70.070)
• **§ 17.70.220** — Water‑Efficient Landscape Standards (applicability and submittal requirements) . (§ 17.70.220)
• **§ 17.70.210** — Vision Clearance Triangle at Intersections (sightlines) . (§ 17.70.210)
• **§ 17.76.050 / § 17.76.060** — Screening of mechanical equipment; Neighborhood Preservation and maintenance obligations . (§ 17.76.050)
• **§ 17.70.090** — Hillside Development Standards (slope thresholds; scenic protection) . (§ 17.70.090)
• **§ 17.52.010 – .030** — Special Focus (S‑F) Overlay purpose and development standards (specific plan precedence for landscaping) . (§ 17.52.010)
• **§ 17.64.010** — Airport (AOZ) Overlay purpose and applicability (landscape/tree/lighting constraints near airport) . (§ 17.64.010)
• **Definition: Screening** — **§ 17.158.042** (definition of screening) . (§ 17.158.042)
• Development review criteria and conditions (landscape as part of site design): **§ 17.106.050** . (§ 17.106.050)
• Creek setback dimensions and accessory items within creek setback: (creek setback chapter in Title 17; see creek setback text) **(creek setback provisions)** . (chapter in)
• SanLuisObispo_ZoningCode.md