Rancho Cucamonga — Design Provisions by Development Type

Single-Family Residential Development

VL, VL-EH 14000, and VL-EH 9000

These Very Low Residential districts are semi-rural residential areas. VL has a 20,000 sf minimum lot size and up to 2 dwelling units per gross acre; VL-EH 14000 and VL-EH 9000 are Etiwanda Highlands subzones with 14,000 sf and 9,000 sf minimum lots, respectively, and the same 2 du/ac maximum. § 17.26.020

For a new detached-home subdivision in any Residential Development Zone, Chapter 17.122 requires the 25% single-story and 5-ft setback-variation rules. The underlying residential standards establish the actual parcel setbacks, heights, and coverage; for example, VL generally has a 42-ft front yard, 35-ft maximum building height, and 25% lot coverage. §§ 17.122.010(A)(1), 17.36.010

L and L-ESP

Low Residential is intended for single-family homes. L provides for 7,200 sf minimum lots and up to 6 du/ac, while L-ESP is the Etiwanda Specific Plan subzone with 10,000 sf minimum lots and the same maximum density. § 17.26.020

A tract in either district must use varied floor plans and elevations according to the subdivision size table, must vary garage treatments, and must taper three- or four-car garage driveways to a standard two-car width at the street. § 17.122.010(A)(1) The applicable residential table shows a 37-ft average front setback in L and 25 ft in L-ESP. § 17.36.010

LM, LM-TV, LM-ESP South, and LM-ESP

Low Medium Residential allows lower-medium-density single-family or multiple-family development compatible with nearby detached neighborhoods. LM, LM-TV, and LM-ESP South have 5,000 sf minimum lots; LM-ESP has 7,200 sf minimum lots; all have a maximum of 8 du/ac. § 17.26.020

For detached subdivisions, Chapter 17.122’s anti-repetition rules apply. Its guidelines specifically identify clustering around common space, zero-lot-line layouts, reverse plotting, angled houses, and side-entry garages as possible ways to create streetscape variety, particularly in the LM zone. § 17.122.010(A)(2)

M, M-TV1, M-ESP South, and M-ESP

Medium Residential is for medium-density multiple-family development compatible with lower-density residential surroundings. The maximum density is 14 du/ac; the provided standards show minimum lots ranging from 3,500 sf in M-TV1 to 7,200 sf in M-ESP, while certain M development standards distinguish single-family from multi-family projects. §§ 17.26.020, 17.36.010

Chapter 17.122 does not separately set a unique M-zone architectural formula in the supplied materials. Multi-family and residential mixed-use projects instead must meet the objective residential design provisions in Chapter 17.123, subject to the form-based-code priority rule where applicable. § 17.123.010

MH and MH-TV

Medium High Residential permits medium-high-density multiple-family housing compatible with lower-density surroundings. MH allows up to 24 du/ac and has a 3-acre minimum lot standard in the supplied table; MH-TV allows up to 24 du/ac with a 1-acre minimum lot standard. §§ 17.26.020, 17.36.010

For qualifying multi-family development, MH requires 35% combined private and common open space, with private open space of 150 sf at ground floor or 100 sf on an upper story; preserved waterways may count toward common open space. § 17.36.010 These are underlying site standards, while Chapter 17.122’s detached-subdivision requirements apply only when the project is a new single-family detached development.

H and H-TV

High Residential supports high-density multiple-family housing and mixed-use buildings at up to 30 du/ac. H-TV also expressly accommodates attached and detached single-family housing; the supplied table lists maximum building heights of 55 ft for H and 65 ft for H-TV. §§ 17.26.020, 17.36.010

Where a project is residential mixed-use or multi-family, facade articulation controls include porch and balcony integration, 18-in offsets between attached townhouse/rowhouse facade planes, and a 50% maximum street-facing garage-door width. § 17.123.030

Form-Based District Frontage and Facade Types

Form-based districts use Chapter 17.132—not Chapter 17.122—as the controlling source for permitted building-entrance and facade types. Every primary and secondary facade on a covered project needs at least one allowed type; a type not listed for the zone is not allowed. § 17.132.030

NE2 — Neighborhood Estate 2

NE2 is a low-density, low-intensity neighborhood district on large lots, with context-sensitive retail and services at key locations. Permitted frontage choices are Small Front Yard and Porch/Stoop Variations and Shopfront/Gallery, Arcade, Terrace, and Recessed Variations; Forecourt is not listed. §§ 17.26.020, 17.132.030

NG3 — Neighborhood General 3

NG3 provides medium-density, medium-intensity development along selected corridors and nodes near smaller-scale neighborhoods. It permits Small Front Yard and Porch/Stoop Variations plus Shopfront/Gallery, Arcade, Terrace, and Recessed Variations, but not Forecourt under the provided table. §§ 17.26.020, 17.132.030

CE1 — Center 1

CE1 is a walkable town-center district for neighborhood-serving commercial and retail uses near medium-density homes. It permits all three listed frontage families: Small Front Yard and Porch/Stoop, Shopfront/Gallery, Arcade, Terrace, and Recessed, and Forecourt. §§ 17.26.020, 17.132.030

ME1 — Mixed Employment 1

ME1 is a medium-intensity, walkable professional-office and employment district transitioning office parks toward mixed-use activity. It permits Shopfront/Gallery, Arcade, Terrace, and Recessed Variations and Forecourt, but not the small-front-yard/porch type. §§ 17.26.020, 17.132.030

ME2 — Mixed Employment 2

ME2 supports medium- to high-intensity professional office, creative industrial, maker, and employment uses along active streets. It permits Shopfront/Gallery, Arcade, Terrace, and Recessed Variations and Forecourt, which aligns with its tall-ground-floor, active-entrance character. §§ 17.26.020, 17.132.030

CO1 — Corridor 1

CO1 transitions auto-oriented corridors to walkable mixed-use places while allowing some auto-oriented development on secondary streets. It permits all three listed frontage families: Small Front Yard and Porch/Stoop, Shopfront/Gallery, Arcade, Terrace, and Recessed, and Forecourt. §§ 17.26.020, 17.132.030

CO2 — Corridor 2

CO2 is a medium- to high-intensity mixed-use corridor district focused on active, walkable corridors and intersections. Its permitted facade types are Shopfront/Gallery, Arcade, Terrace, and Recessed Variations and Forecourt. §§ 17.26.020, 17.132.030

CE2 — Center 2

CE2 is an urban mixed-use center with pedestrian-friendly commercial and residential hubs around vibrant public spaces. It permits Shopfront/Gallery, Arcade, Terrace, and Recessed Variations and Forecourt, but not the small-front-yard/porch type. §§ 17.26.020, 17.132.030

Commercial, Office, and Industrial Development

NI — Neo-Industrial

NI supports research and development, light/custom manufacturing, engineering and design services, breweries, maker spaces, accessory office and retail, and limited residential uses that complement the primary use. § 17.26.020

A new NI project must screen drive-through lanes and parking from public view, plant 1 tree per 3 parking stalls, use at least 2 primary building materials, and paint roll-up/service doors to blend with the main building colors. Exterior prefabricated sheet/panel metal is prohibited as a principal exterior material in industrial zones, except as accent material or trim. § 17.122.030

IE — Industrial Employment

IE is reserved for manufacturing, processing, construction/heavy-equipment yards, warehousing, e-commerce distribution, light-industrial research parks, and vehicle services. Non-industrial uses are generally prohibited except supporting accessory office/commercial uses and on-site caretaker units. § 17.26.020

The same commercial/industrial design standards apply: screen visible drive-throughs and parking, provide 1 tree per 3 stalls, use at least 2 primary materials, and do not use exterior metal sheets/panels as the main industrial building finish. § 17.122.030

Overlay and Parcel-Specific Priority

The SH, E, H, LW, and CS overlays supplement a parcel’s base-zone rules. When an overlay conflicts with the base zone, the overlay controls; confirm Rancho Cucamonga Overlay Districts before relying on a base-zone standard alone. § 17.26.020

The Hillside (H) overlay generally applies on slopes of at least 8%, and hillside residential height is limited to 30 ft where the residential tables so state. The specific Chapter 17.122 hillside-design requirements are Not found in source materials. §§ 17.26.020, 17.36.010

Practical Design Controls

Use the underlying parking, landscaping and screening, signage, and building-permit requirements alongside Chapter 17.122. §§ 17.34.020, 17.12.020

For additions and remodels of existing multi-family or residential mixed-use buildings, new porches, balconies, decks, windows, and doors must match the existing building’s architectural design and detail. § 17.123.080 New construction and substantial renovations also have local CalGreen compliance requirements, with buildings under 1,500 sf generally exempt unless the planning director determines otherwise; consult the California Building Standards Code for the broader state framework. § 17.50.020

Information Gaps

• Specific Chapter 17.122 standards for hillside development are Not found in source materials.
• Specific Chapter 17.122 standards for signs are Not found in source materials; use Rancho Cucamonga Signage.
• Parcel-level permitted-use determinations, special-plan rules, and overlay-specific deviations are Not found in source materials. Verify with the jurisdiction.

Checklist

• Confirm the parcel’s base zone, subzone, and any overlay.
• Identify whether the project is detached single-family, multi-family/residential mixed-use, commercial/office/industrial, or form-based.
• For a 4+ unit detached subdivision, show 25% single-story homes and 5-ft adjacent front-setback variation.
• Provide the required floor-plan and elevation mix for the subdivision’s dwelling count.
• For flag lots, show a 12-ft garage-access driveway portion.
• For commercial, office, or industrial projects, screen drive-throughs and parking and show 1 tree per 3 stalls.
• Specify at least 2 primary building materials and avoid prohibited principal exterior metal paneling in industrial zones.
• For form-based projects, select an allowed entrance/facade type for every primary and secondary facade.
• Confirm whether discretionary review, building permits, CalGreen compliance, or an applicable development agreement is required.

Risks & Ambiguities

Plain-English Summary

For a new Rancho Cucamonga tract, the city is trying to prevent a repetitive row of identical houses: use enough single-story homes, change adjacent setbacks, vary plans/elevations, and keep garages from taking over the street. Commercial and industrial projects must make parking, drive-throughs, materials, and service doors look intentionally integrated rather than like leftover site functions.

Source References

• § 17.122.010 — Design Provisions by Development Type; single-family home and subdivision design.
• § 17.122.030 — Commercial, office, and industrial development.
• § 17.118.020 — Design-standard applicability; standards and guidelines.
• § 17.26.020 — Rancho Cucamonga zones, subzones, and overlays.
• § 17.36.010 — Residential development standards.
• § 17.123.010, § 17.123.030, § 17.123.080 — Multi-family/residential mixed-use design, facades, additions, and remodels.
• §§ 17.132.010, 17.132.020, 17.132.030 — Form-based building entrances and facades.
• §§ 17.34.020, 17.50.020, 17.12.020 — Site requirements, green-building compliance, and permits/development agreements.