Local zoning · San Gabriel

San Gabriel — Design Review

Design Review under the San Gabriel local zoning and planning code, with the controlling citations.

Last reviewed: July 2, 2026

Overview

Design review in San Gabriel is the discretionary process that checks site plans, architecture, landscaping and streetscape elements for consistency with the city's design objectives before any building or construction permit is issued. The city operates a staffed Community Development Director review for smaller projects and a five‑member Design Review Commission for larger or visually consequential projects; findings and procedural rules are set out in the municipal zoning code. See the city's broader San Gabriel zoning & planning overview for context. § 153.350–153.354 .

How San Gabriel’s design review system works (core rules)

Purpose and authority: Design review implements General Plan urban design policies, protects property values, and ensures safe circulation and quality architecture and landscaping. § 153.350 .
No permits before approval: No building permit or other construction permit may be issued until a precise plan of design or site plan review covering the parcel is approved. § 153.352 .
Who decides which body reviews a project:
- The Community Development Director reviews many smaller projects and certain residential work. § 153.354(A) .
- The Design Review Commission reviews new homes in R‑1 that add second stories or replace >50% of the structure, multi‑unit projects of 5+ units, and commercial/office/industrial projects over 3,000 sq ft (and other thresholds). § 153.354(B) .
Review criteria: Approvals must find that the architecture, site plan and landscape are consistent with the General Plan, zoning, City design guidelines, neighborhood scale, transitions to adjoining properties, landscaping and preservation of historic character where applicable. § 153.355 .
Application materials and professional requirements: The filing packet is set by the Community Development Director and typically includes dimensioned site plans, elevations, landscape plans, material/color boards, neighborhood analysis (300‑ft radius for R‑1 cases before the Commission), and more. Large projects (>1 acre) require architect and landscape architect plans. § 153.353(D) .
Timing and scope: The Director/Commission acts within statutorily stated timeframes (Director: 30 days for many types). Approved precise plans/site plan reviews expire if work hasn't commenced within one year unless extended. Minor amendments may be approved administratively. § 153.354(A), § 153.356, § 153.357 .
Historic resources: Projects affecting designated cultural resources or within historic districts follow the Historic Preservation/ Cultural Resource procedures; in many cases design review for those projects is carried out by the Historic Preservation and Cultural Resource Commission and follows the Secretary of the Interior standards. § 153.628, Historic subchapter .
Administrative/appeal route: Decisions of the Director or the Design Review Commission may be appealed to the City Council within the appeal periods defined in the code. § 153.354(C) .

District‑by‑district breakdown (where design review interacts with zoning and standards)

Below are the principal zoning districts in which design review is commonly applied; each subsection gives the district purpose, typical permitted uses, key dimensional or program standards, and where design review typically appears in practice.

NOTE: The San Gabriel zoning map is adopted as part of the code; verify a parcel’s actual zone with the Community Development Director. § 153.016 .

R‑1 — Single‑Family Residence Zone

Purpose: Standard single‑family neighborhoods; protect scale and residential character. (R‑1).
Typical permitted uses: Single‑family homes and accessory uses (including ADUs subject to separate rules). § 153.030 et seq. .
Key dimensional standards and common thresholds:
- Lot coverage: 35% maximum. § 153.042 .
- Height and angled plane controls for front/side/rear (45°/35° planes apply to building massing); articulation requirements for second‑story walls (no linear wall >25 ft without articulation). § 153.040 .
- Front/side/rear yard specifics and minimum setbacks in the R‑1 chapters; see code for the precise yard formulas. §§ 153.030–153.042 .
Where design review applies: New homes, additions that create significant public right‑of‑way impacts, new second stories and demolition/rebuild projects in R‑1 are routed to the Design Review Commission per the thresholds in § 153.354(B); less‑visually‑consequential rear additions may be handled by the Director. § 153.354(A–B) .

(For the R‑1 family of rules including R‑1A, see next entry.) See also the city's objective development standards and San Gabriel Development Standards.

R‑1A — Limited Two‑Family Residence Zone

Purpose: Limited two‑family in low density neighborhoods.
Typical uses: R‑1 uses plus limited second unit(s) on larger lots and ADUs per local ordinance. § 153.055 .
Key standards: Height limits (two stories, 28 ft in R‑1A), minimum site area 5,500 sq ft, front yard formulas (20% of average block depth, min 20 ft). §§ 153.056–153.058 .
Design review: Additions and projects that change street‑facing character are subject to the Director or Commission depending on scale under § 153.354. § 153.354 .

R‑2 / R‑3 — Multi‑Family Zones

Purpose: Provide areas for low and medium density multi‑family housing.
Typical uses: Multi‑family residences, group dwellings; R‑3 includes higher density options and some institutional uses with CUP. §§ 153.100, 153.117 .
Key standards:
- R‑3 height: 3 stories / 35 ft max. § 153.101 .
- Lot coverage: R‑2 = 55%, R‑3 = 60% (selected standards). § 153.117(A) .
- Side/rear yard minimums vary with height (10 ft up to 28 ft; 15 ft over 28 ft). § 153.117(B) .
Design review: Multi‑family projects of five or more units go to the Design Review Commission; smaller multi‑unit work (4 units or fewer) may be handled by the Director. § 153.354(A–B) .
Special objective standards for ministerial streamlining: the city has objective design standards for projects eligible for ministerial approval (e.g., multi‑family and mixed‑use projects qualifying under state streamlined processes). § 153.134 .

C‑1 / C‑3 / M‑1 — Commercial & Light Industrial Zones

Purpose: Retail/commercial corridors (C‑1), broader commercial/limited manufacturing (C‑3), and light industrial/manufacturing (M‑1).
Typical uses: Ground‑floor retail/office, upper‑floor residential in mixed‑use, commercial services, light manufacturing per zone allowances. § 153.155 .
Key standards (excerpt): minimum lot width 50 ft; C‑1/C‑3 up to 5 stories/70 ft, M‑1 typically 2 stories/35 ft; front yard often 0 ft but may be required via precise plan. § 153.155 .
Design review: Commercial projects >3,000 sq ft (and other threshold additions) are heard by the Design Review Commission; smaller storefront remodels may be Director‑level. § 153.354 .

Mixed‑Use

Purpose: Combine commercial and residential uses on same parcel where specified.
Typical uses: Ground‑floor commercial with residential above (subject to limits). § 153.152 .
Key standards: Parking rules tie to use; FAR and height differ depending on adjacency to R‑1/R‑2; front yard exceptions for commercial floors; residential floors often require a 5 ft setback beyond commercial. § 153.152 .
Design review: Mixed‑use projects’ design, especially where height/FAR exceed base district, are typically subject to Commission review per the size and visual impacts. § 153.354 .

Planned Development Overlay (P‑D)

Purpose: Flexible regulations for large or corridor‑focused developments; overlay creates a provisional plan and allows deviations where a precise plan is approved. § 153.280–153.284 .
Design review: P‑D applications require a precise plan and are tightly coordinated with design review; P‑D projects often require Commission review because they request departures from underlying standards. § 153.284 .

Quick reference table — who reviews what (decision‑relevant)

Project / trigger	Typical reviewer	Why it matters	Code reference
New single‑family in R‑1 with new second story or >50% demolition	Design Review Commission	Public façade/streetscape impact; public hearing required	§ 153.354(B)(1)
Multi‑family projects of 5+ units or commercial >3,000 sq ft	Design Review Commission	Larger projects shape neighborhood scale	§ 153.354(B)(2)
Single‑family projects not in R‑1, multi‑family ≤4 units, commercial ≤3,000 sq ft	Community Development Director (30‑day decision)	Faster administrative review	§ 153.354(A)(1)
Minor changes after approval (color, roofing)	Chair & City Architect (admin)	Avoids full re‑hearing for small adjustments	§ 153.354(F)

Sample development standards table (commercial/light industrial excerpt)

Standard	C‑1	C‑3	M‑1	Code reference
Maximum building height	5 stories / 70 ft	5 stories / 70 ft	2 stories / 35 ft	§ 153.155
Minimum lot width	50 ft	50 ft	50 ft	§ 153.155
Front yard	0 ft (may be required by precise plan)	0 ft	0 ft	§ 153.155
Maximum FAR	0.5 (C‑1) / 0.7 (C‑3)	See notes (may vary for mixed‑use)	0.5 (M‑1)	§ 153.155

Checklist — what an applicant must submit / satisfy (minimum)

File a complete application and fee schedule per the Community Development Department checklist. § 153.353(A–D) . (Verify current fee schedule with staff.)
Dimensioned site plan (property lines, building footprints, setbacks, driveways, parking layout, refuse and recycling location). § 153.353(D)(2) .
Elevation drawings of all sides showing materials, colors, fenestration and rooftop equipment screening. § 153.353(D)(4) .
Landscape plan (planting, irrigation, trees to preserve) sized per city landscaping rules; public frontage landscaping/planters for street‑facing facades. § 153.353(D)(5), § 153.535(C) .
Materials and color board keyed to elevations. § 153.353(D)(6) .
Neighborhood analysis (300‑ft radius) for R‑1 projects going to the Commission. § 153.353(D)(3) .
Demonstrated consistency with the evaluation criteria (General Plan, design guidelines, transitions, landscaping, historic standards where applicable). § 153.355 .
For projects affecting cultural resources, submit additional materials and follow the Historic Preservation initial review process. § 153.616–153.620 .

Practical notes: the Director maintains and updates the submission checklist and may require additional materials necessary to make an informed decision. § 153.353(C–D) .

Risks & Ambiguities

Issue	Why it matters	What to verify
Whether a proposal is Director‑level or Commission‑level	Different timelines, public notice and possibility of conditions/appeal; misfiling delays project	Confirm reviewer assignment early with Community Development (the code lists thresholds but the Director may refer controversial items). § 153.354
Exact design guidelines used at review	Commission and staff apply city design guidelines alongside code; guidelines drive “consistency” findings	Request the current Design Review operating guidelines and any adopted neighborhood design guidelines from staff. § 153.351(D)
Historic resource overlap	Projects involving cultural resources route to the Historic Preservation process and use Secretary of the Interior standards—different submittal and findings	Check whether the parcel is on the San Gabriel Register or Inventory and follow the Historic subchapter; ask staff if the Historic Preservation Commission will act. § 153.628; § 153.616–153.619
Fee schedule and deposit amounts	Unanticipated consultant or plan‑check costs can stop applications	Fees are adopted by resolution; ask the Community Development Department for the current fee schedule. § 153.628 (fees for historic items) — citywide fee resolutions not included in retrieved materials. Verify with the jurisdiction.
ADU review interaction	State ADU law limits what local standards can require; local design review cannot unreasonably preclude an 800‑sq ft ADU	If proposing an ADU, ensure design review and ADU rules are reconciled (local ADU rules in code; see ADU chapter). § 153.047 referenced in ADU provisions — see ADU chapter and state law. Verify with staff.

Plain‑English summary

If you want to build or significantly alter a home or commercial building in San Gabriel, you must submit drawings showing the site, materials, landscaping and neighborhood context; smaller projects are handled administratively by the Community Development Director, but new homes with visible second stories, larger multi‑unit buildings, and commercial projects over certain sizes go before the Design Review Commission. The reviewers check for compatibility with the General Plan, city design guidelines and, where relevant, historic preservation standards and will attach conditions or require changes to protect streetscape, landscaping and neighbors. §§ 153.350–153.356 .

Information Gaps

The city’s current written "operating guidelines" and detailed submission checklist referenced in § 153.353 are not included in the retrieved materials — applicants should obtain the latest checklist from Community Development. § 153.353(C–D) .
The municipal fee resolution and exact current application fees (Design Review, historic review, deposits) were not in the retrieved excerpts. Verify with the jurisdiction. Not found in retrieved materials.
The most recent adopted Design Guidelines document (graphic examples and neighborhood‑specific rules) is not in the uploaded files. Verify with the jurisdiction. Not found in retrieved materials.
Online parcel‑specific triggers (e.g., zoning map parcel lookup) are not included here — check the official zoning map on file with the Community Development Director. § 153.016 .

Source References

San Gabriel Municipal Code, Design Review subchapter: § 153.350–153.358 (purposes, commission, applicability, application contents) .
Application action and reviewer thresholds: § 153.354 (Community Development Director vs Design Review Commission; appeals) .
Evaluation criteria (findings required): § 153.355 .
Time limits and minor revisions: § 153.356–153.357 .
Application filing contents and professional requirements: § 153.353(D) (site plans, elevations, neighborhood analysis, materials board, etc.) .
Historic Preservation / Cultural Resources (initial review, exemptions): §§ 153.616–153.620; 153.628 (Historic Commission processes) .
R‑1 development standards (lot coverage, angled plane, articulation): §§ 153.040, 153.042 .
R‑1A standards: §§ 153.056–153.059 .
R‑2 / R‑3 multi‑family standards and objective design elements: §§ 153.100–153.117; 153.134 .
C‑1 / C‑3 / M‑1 development standards table excerpt: § 153.155 .
Planned Development Overlay: §§ 153.280–153.284 .
ADU provisions (local references within zoning chapter): ADU chapter references and allowances: § 153.047 et seq. .

Useful internal reading (first mention hyperlinks used above):

San Gabriel zoning & planning overview: /us/california/san-gabriel
San Gabriel Zoning: /us/california/san-gabriel/zoning
San Gabriel Development Standards: /us/california/san-gabriel/development-standards
San Gabriel Parking: /us/california/san-gabriel/parking
San Gabriel Overlay Districts: /us/california/san-gabriel/overlay-districts
San Gabriel Historic Preservation: /us/california/san-gabriel/historic-preservation
San Gabriel ADUs: /us/california/san-gabriel/adu
California Building Standards Code (Title 24): /us/california/building-codes

Sources

Retrieved passages

CBC § 9 (§ 9-3.2506) High relevance
San Gabriel Zoning Code (§ 9-3.2505) High relevance
San Gabriel Zoning Code (§ 153.353) High relevance
CBC § 9 (§ 9-3.2506) High relevance
San Gabriel Zoning Code (§ 9-3.2502) High relevance
San Gabriel Zoning Code (§ 100.030) Medium relevance
San Gabriel Zoning Code (§ 153.354) Medium relevance
San Gabriel Zoning Code (§ 153.626) Medium relevance
San Gabriel Zoning Code (§ 153.999) Medium relevance
San Gabriel Zoning Code (§ 9-3.701) Medium relevance
San Gabriel Zoning Code (§ 153.132) Medium relevance
San Gabriel Zoning Code (chapter applicable) Medium relevance
San Gabriel Zoning Code (§ 9-3.501) Medium relevance
San Gabriel Zoning Code (§ 153.100) Medium relevance
San Gabriel Zoning Code (§ 153.050) Medium relevance
CBC § 65852.22 (§ 65852.22.) Medium relevance

Cited sections

Official San Gabriel code library

Frequently asked questions

Do I always need design review in San Gabriel?

Not always. Small projects frequently go to the Community Development Director for administrative review (30‑day target). Projects meeting the thresholds (e.g., new homes with second stories in R‑1, multi‑family of 5+ units, commercial projects >3,000 sq ft) go to the Design Review Commission. See § 153.354(A–B) for the detailed triggers and review body.

What are the key evaluation criteria the Commission uses?

Approvals must find the project is consistent with the General Plan, zoning and city design guidelines; is architecturally harmonious with the neighborhood; provides adequate landscaping and transitions to adjoining properties; and protects historic character where relevant. See § 153.355 for the full list.

What must I include in a design review application?

Typical minimum submittals include a fully dimensioned site plan, elevation drawings for all sides, materials and color board, landscape plan, parking layout, and a neighborhood analysis for R‑1 Commission cases. Large projects (>1 acre) require architect and landscape architect plans. See § 153.353(D) for the checklist categories.

How long is a design approval valid?

A precise plan of design or site plan review approval is valid for one year from approval; the Director or Commission may extend for good cause (sometimes an additional year), after which the approval expires if construction hasn’t commenced. § 153.356

If my property is historic, who reviews my project?

Design review for projects that affect designated cultural resources or historic districts is handled through the Historic Preservation and Cultural Resource procedures—many such projects are exempt from the standard Design Review route and follow the Historic Commission’s initial review and certificate processes consistent with the Secretary of the Interior standards. See the Historic subchapter and §§ 153.616–153.620, 153.628.

Can the Director make changes to an approved design without sending it back to the Commission?

The Director and the City Architect may approve minor modifications (colors, roofing materials, finish changes) to an approved plan; substantial changes must be returned for Commission review. See § 153.354(F) and § 153.357 for the limits and appeal route.

How are parking rules applied during design review?

Off‑street parking plans are part of the required site plan submittal; parking counts and dimensions must comply with the zoning parking chapter. The Commission and staff review circulation and parking compatibility as part of design review. See the filing requirements in § 153.353(D)(2) and parking chapters referenced in the zoning code (see San Gabriel Parking).

If my project is an ADU, will design review block it?

Local design review cannot impose standards that unreasonably preclude ADUs authorized by state law. San Gabriel’s ADU chapter sets local ADU rules; check the ADU chapter and coordinate early with the city to reconcile design expectations with state ADU limits (local ADU rules: § 153.047 and related). Verify with staff for parcel‑specific application.

Can I get a pre‑application or conceptual review before formal filing?

Yes — San Gabriel allows pre‑application review; the Director may set a fee by resolution. Pre‑application review is recommended to spot issues early. § 153.367

Where can I find the city’s current design guidelines and checklist?

The code references operating guidelines and a submission checklist maintained by the Community Development Director, but the actual current checklist and any graphic design guidelines are maintained by staff and are not in the uploaded materials. Verify with the Community Development Department. § 153.353(C–D), § 153.351(D)

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