Local zoning · Windsor

Windsor — Design Review

Q: Do I need design review in Windsor?

Yes — Site Plan and Design Review is required for most new construction, additions, and substantial changes (single-unit development is exempt and truly small projects may be handled through Building Permit). See § 17.56.010–§ 17.56.020 .

Q: What are the required findings to get design review approval?

The Review Authority must find the project (1) is consistent with the General Plan and applicable standards, (2) won’t interfere with nearby uses or create hazards, (3) is architecturally compatible, (4) provides a desirable environment via materials/color/texture, and (5) is not detrimental to public health/safety/welfare. See § 17.56.060 .

Q: Who decides my design review application?

Decision authority is assigned in Table 17.56-01 : typically the Director for many projects, but the Commission reviews projects that are not CEQA-exempt and the Director can refer matters to the Commission. See § 17.56.020 and Table 17.56-01 .

Q: Can small accessory additions be reviewed with my Building Permit instead?

Possibly. Additions or accessory structures that are less than 20% of existing floor area or ≤ 5,000 sq ft , not visible from the public right-of-way, and matching existing materials/colors may qualify for Building-Permit-level Site Plan & Design Review under the Director’s determination. See § 17.56.010 (Small Projects) .

Q: How does the Windsor Station Area/Downtown Specific Plan affect design review?

If your property is inside the Windsor Station Area/Downtown Specific Plan area, the Specific Plan’s design and development standards apply in addition to Chapter 17.56 ; where conflicts arise, the Specific Plan controls. See § 17.12.030.F and § 17.56.030 .

Q: Will landscaping, screening, and lighting be reviewed as part of design review?

Yes — landscape plans (Chapter 17.28 ), screening of mechanical/loading/refuse (Chapter 17.26 ), and lighting/glare standards (Chapter 17.32 ) are required elements of Site Plan & Design Review. See Ch. 17.26 , Ch. 17.28 , Ch. 17.32 .

Q: What happens if my project triggers CEQA?

If the project is not CEQA-exempt, the Commission shall review it and CEQA clearance must be completed prior to final approval; CEQA can add time and mitigation requirements. See § 17.56.020 and § 17.56.050 .

Q: Where can I find the land‑use table for my zone?

Residential uses and standards are in Table 17.10-01 (Residential Zones); commercial/mixed‑use uses are in Table 17.12-01 ; industrial uses are in Table 17.14-01 . Check the applicable table in Article 2 to confirm allowed uses for your parcel. See § 17.10.030 , § 17.12.030 , § 17.14.030 .

Q: Can the Director change setback or development standards during review?

The Director may approve certain modifications (e.g., through the Site Plan & Design Review process or where the Code authorizes adjustments), but substantial changes that require findings or exceptions should be verified and may require concurrent discretionary approvals. See references to permitted modifications and the PD/Final Development Plan process in § 17.14.050 and related sections. Verify with the jurisdiction .

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

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Last reviewed: July 3, 2026

Overview

Windsor’s Site Plan and Design Review process evaluates the visual, site-planning, and neighborhood-compatibility aspects of new development and significant alterations. The Town’s requirements and procedures are in Chapter 17.56 (Site Plan and Design Review) of the Windsor Zoning Code; key triggers, authority, findings, and procedures are spelled out in § 17.56.010 through § 17.56.080.

This page explains what the Windsor code requires, how review is allocated across zones, and the practical items applicants must address. Cross-references: see Windsor’s pages on parking, development standards, overlay districts, landscaping and screening, ADUs and the California Building Standards Code where those topics intersect design review.

What the code requires (core rules)

Applicability: Site Plan and Design Review is required for most new construction, enlargements, and substantial changes to existing developments except single-unit development; small projects can be administratively handled through the Building Permit process if they meet narrow criteria. See § 17.56.010 and § 17.56.020.
Review authority: The Review Authority is assigned by Table 17.56-01 (Director, Commission, or Director acting as Administrative Hearing Officer). The Commission must review projects that are not CEQA-exempt. See § 17.56.020 and Table 17.56-01.
Application processing: Applications are filed and processed under Chapter 17.52 (Application Processing Procedures); the Director determines completeness and schedules hearings as required. See § 17.56.030 and § 17.56.050.
Findings to approve: A project must satisfy the five findings in § 17.56.060 — consistency with the General Plan and applicable standards, no interference with neighboring uses, architectural compatibility, desirable occupant/public environment, and no detriment to public health/safety/welfare.
Conditions and post-decision: The Review Authority may impose conditions to ensure findings are met; appeals, changes, building permit issuance, and time limits follow Article 6 and Chapter 17.64. See § 17.56.070 and § 17.56.080.
Small-project (administrative) exception: Minor accessory structures and additions may qualify for review through the Building Permit process if they are < 20% of existing floor area or ≤ 5,000 sq ft, not visible from the public right-of-way, and match existing materials/colors; see § 17.56.010 (Small Projects criteria).

District-by-district breakdown (how Design Review applies by zone)

Note: the Windsor Zoning Code organizes zones in Article 2 (Zones, Allowable Uses, and Development Standards); each district below includes the short purpose from the Code, typical uses, key dimensional/development items that commonly trigger design review, and where that district is applied. Always verify parcel-specific rules with the jurisdiction.

Surrounding Residential (SR)

Purpose: Provide a range of housing types close to existing neighborhoods and encourage compatibility with single-family context. See § 17.10.020 and Table 17.10-01.
Typical uses: Detached single-family homes, some cottage-home and small infill residential types (see cottage home rules). See § 17.100.030.
Key development standards/what triggers design review: Setbacks, height, landscaping, and driveway/parking layout governed by Article 3 standards; projects that are new construction or large additions trigger Site Plan & Design Review; small additions may be administrative if they meet the Small Projects criteria in § 17.56.010.
Where it applies: Residential neighborhoods outside downtown/station-area overlays; see Table 17.10-01 for exact parcels.

Village Residential (VR)

Purpose: Denser village-scale housing with walkable frontages and context-sensitive design. See § 17.10.020 and Table 17.10-01.
Typical uses: Townhomes, small multi-unit projects, and compatible live/work in some locations.
Design-review focus: Façade composition, entries, landscaping, and transitions to adjacent single-family zones; multi-unit projects commonly require Site Plan & Design Review per § 17.56.020.

Medium Density Residential (MDR)

Purpose: Multi-unit residential (apartment/condo) at moderate densities; design standards emphasize livability and compatibility. See § 17.10.020 and Table 17.10-01.
Typical uses: Duplexes, triplexes, small apartment buildings.
Design-review focus: Unit spacing, common open space, parking layout (see parking), building massing, and landscaping; cottage-home and small-lot projects in these zones explicitly require Site Plan & Design Review. See § 17.100.050–060 and § 17.56.020.

Boulevard / Boulevard Mixed-Use (BMU) and Boulevard Commercial Mix (BCMU)

Purpose: Pedestrian-oriented mixed-use corridors near transit with higher intensities and ground-floor activation; design controls emphasize frontage types and ground-floor heights. See § 17.12.060 and Table 17.12-01.
Typical uses: Ground-floor retail, upper-floor residential, offices, childcare, public plazas.
Key standards affecting design review: Frontage and façade placement (maximum front setback 5 ft, with limited exceptions), first-floor minimum height in BCMU/RC zones, and block perimeter controls — all design-review focal points. See § 17.12.060 (C–E).

Town Center / Transit-oriented (TC, TC-AUFO, TCEO)

Purpose: Mixed-use downtown/station-area zones subject to the Windsor Station Area/Downtown Specific Plan; projects here are routed to the specific plan standards and almost always receive design scrutiny. See § 17.12.030 and the Specific Plan note in § 17.12.030.F.
Typical uses: Retail, civic, mixed-use residential above commercial.
Design-review focus: Conformance with the Windsor Station Area/Downtown Specific Plan in addition to Chapter 17.56; the Commission reviews non-CEQA-exempt projects. See § 17.56.020 and § 17.12.030.F.

Regional Commercial (RC) and Gateway Commercial (GC)

Purpose: Higher-intensity commercial uses serving Windsor and the region; architectural compatibility and screening are design-review issues. See § 17.12.020 and related tables.
Typical uses: Larger retail, hotels, conference facilities, offices.
Design-review focus: Site circulation, large-scale façade treatment, parking layout (see parking), screening of loading/refuse/mechanical equipment, landscaping islands and lighting. See Chapter 17.26 (screening), 17.28 (landscaping), and 17.32 (lighting).

Light Industrial (LI) and Heavy Industrial (HI)

Purpose: Industrial/manufacturing uses; design review focuses on screening, buffering, and minimizing visual impacts on nearby residential or public spaces. See § 17.14.030.
Typical uses: Warehousing, manufacturing, industrial services (residential prohibited in HI).

Planned Development (PD)

Purpose: Enables site-specific standards and project-wide architectural standards; PD projects require a Preliminary Development Plan and finalization before permits. See § 17.14.050.
Typical uses: Large master-planned residential or mixed-use developments.
Design-review focus: The PD approval itself establishes mandatory architectural standards and the Final Development Plan becomes the standard against which Site Plan & Design Review is measured. See § 17.14.050.C.4.

Quick reference table — Decision‑relevant Design Review items

What (short)	When it’s required / typical trigger	Code reference
Applicability rule (new construction, additions, substantial change)	Required for new structures, additions, and substantial changes; single-unit development is exempt; small projects may be processed with Building Permit if criteria met	§ 17.56.010–§ 17.56.020
Review authority (Director / Commission / Administrative Hearing Officer)	Table of decision-makers; Commission reviews projects not CEQA-exempt; Director may refer to Commission	Table 17.56-01 / § 17.56.020
Required findings to approve	Must make five findings: General Plan/standards consistency; no interference with neighboring uses; architectural compatibility; desirable environment; not detrimental to public welfare	§ 17.56.060
Small-project administrative criteria	< 20% of existing structure or ≤ 5,000 sq ft; not visible from public right-of-way; same materials/colors	§ 17.56.010
Station Area/Downtown Specific Plan override	Properties in the Windsor Station Area/Downtown Specific Plan must meet Specific Plan standards in addition to Chapter 17.56	§ 17.12.030.F / § 17.56.030
Landscaping, screening, lighting standards reviewed with design review	Landscaping standards (Ch. 17.28), screening (Ch. 17.26), lighting/glare (Ch. 17.32) are applied through design review	Ch. 17.26, Ch. 17.28, Ch. 17.32

Checklist — What an applicant must satisfy for a Site Plan & Design Review application

Demonstrate project is within the allowed uses for the parcel’s zone (Article 2 / Table 17.10-01 or 17.12-01 / 17.14-01 as applicable). § 17.10.030, § 17.12.030.
Provide a complete application per Chapter 17.52 (plans, materials, landscaping, lighting, circulation, and required technical studies). § 17.56.030.
Show how the design meets the five approval findings in § 17.56.060 (consistency, compatibility, safety, aesthetics).
Include landscape plans complying with Chapter 17.28 and WELO requirements where triggered. Ch. 17.28 / § 17.28.030.
Address parking and access per Chapter 17.30 and local parking rules; integrate parking layout into site plan. See parking and Chapter 17.30.
If in an overlay (e.g., -HO Historic Overlay, -AS Airport Safety), include any required additional studies or referrals and comply with overlay standards (Chapters 17.16, 17.18, and 17.24).
If project is not CEQA-exempt, provide CEQA clearance before hearing; non-CEQA-exempt projects are reviewed by the Commission. § 17.56.020, § 17.56.050.

Risks & Ambiguities

Issue	Why it matters	What to verify
CEQA applicability	Non-exempt projects must be reviewed by the Commission and CEQA can lengthen review and require mitigation	Confirm CEQA status early; check § 17.56.020 and coordinate environmental review. Verify with the jurisdiction.
Small‑project determination	The Director has discretion to treat accessory/addition as “small” (Building Permit administrative review) — subjective elements like visibility from ROW matter	Request a pre-application meeting and written Director determination when relying on Small Project criteria in § 17.56.010.
Overlays and Specific Plans	Windsor Station Area/Downtown Specific Plan and overlay zones can impose additional or different design standards	Confirm whether parcel is inside the Station Area/Downtown Specific Plan or has overlays like -HO or -AS; see § 17.12.030.F and Chapter 17.18.
Review Authority discretion	The Director may refer matters to the Commission; the code gives discretion to impose conditions — outcome can hinge on subjective design compatibility findings	Prepare materials that directly address the five required findings in § 17.56.060 and request clear conditions of approval if needed.
Conflicts between chapters	Site-specific PD or Specific Plan standards may supersede general zone standards	If a PD/Specific Plan applies, follow the PD Final Development Plan / Specific Plan standards; cite § 17.14.050 and the Specific Plan note in § 17.12.030.F.

Plain-English Summary

In Windsor, most new buildings, major additions, and projects that change how a site functions must pass Site Plan and Design Review (Chapter 17.56) so the Town can check consistency with the General Plan, zoning standards, and basic design objectives (compatibility, landscaping, parking, and safety). Small, invisible accessory work can often be handled during Building Permit review; larger or non‑CEQA‑exempt projects will get a public hearing and stricter scrutiny.

Source References

Windsor Zoning Code — Chapter 17.56 (Site Plan and Design Review): § 17.56.010 – § 17.56.080.
Table 17.56-01 (Review Authority for Site Plan and Design Review).
Findings and Conditions: § 17.56.060, § 17.56.070, § 17.56.080.
Residential zones and Table 17.10-01 (Residential land use regulations). § 17.10.030.
Commercial / Mixed-Use zones and design notes (BMU, RC, TC): § 17.12.030, § 17.12.060.
PD zone and project-wide architectural standards: § 17.14.050.
Landscaping, screening, lighting references: Chapters 17.28, 17.26, 17.32.
Windsor zoning & planning overview: Windsor zoning & planning overview
Local development standards & parking references: Windsor Development Standards, Windsor Parking

Sources

Retrieved passages

Windsor Zoning Code (Chapter 17.52) High relevance
Windsor Zoning Code (chapter are) High relevance
Windsor Zoning Code (Section 17.54.060) High relevance
Windsor Zoning Code High relevance
Windsor Zoning Code (Chapter 17.56) High relevance
Windsor Zoning Code (Chapter 17.54.) High relevance
Windsor Zoning Code (Title XVII) High relevance
Windsor Zoning Code (Chapter 17.52) High relevance
Windsor Zoning Code (Chapter 17.56) Medium relevance
Windsor Zoning Code (Chapter 17.54) Medium relevance
Windsor Zoning Code (Chapter 17.54) Medium relevance
Windsor Zoning Code (Chapter 17.54) Medium relevance
Windsor Zoning Code (Article 2) Medium relevance
CBC § 050 (Chapter 17.24) Medium relevance

Cited sections

Official Windsor code library

Frequently asked questions

Do I need design review in Windsor?

Yes — Site Plan and Design Review is required for most new construction, additions, and substantial changes (single-unit development is exempt and truly small projects may be handled through Building Permit). See § 17.56.010–§ 17.56.020.

What are the required findings to get design review approval?

The Review Authority must find the project (1) is consistent with the General Plan and applicable standards, (2) won’t interfere with nearby uses or create hazards, (3) is architecturally compatible, (4) provides a desirable environment via materials/color/texture, and (5) is not detrimental to public health/safety/welfare. See § 17.56.060.

Who decides my design review application?

Decision authority is assigned in Table 17.56-01: typically the Director for many projects, but the Commission reviews projects that are not CEQA-exempt and the Director can refer matters to the Commission. See § 17.56.020 and Table 17.56-01.

Can small accessory additions be reviewed with my Building Permit instead?

Possibly. Additions or accessory structures that are less than 20% of existing floor area or ≤ 5,000 sq ft, not visible from the public right-of-way, and matching existing materials/colors may qualify for Building-Permit-level Site Plan & Design Review under the Director’s determination. See § 17.56.010 (Small Projects).

How does the Windsor Station Area/Downtown Specific Plan affect design review?

If your property is inside the Windsor Station Area/Downtown Specific Plan area, the Specific Plan’s design and development standards apply in addition to Chapter 17.56; where conflicts arise, the Specific Plan controls. See § 17.12.030.F and § 17.56.030.

Will landscaping, screening, and lighting be reviewed as part of design review?

Yes — landscape plans (Chapter 17.28), screening of mechanical/loading/refuse (Chapter 17.26), and lighting/glare standards (Chapter 17.32) are required elements of Site Plan & Design Review. See Ch. 17.26, Ch. 17.28, Ch. 17.32.

What happens if my project triggers CEQA?

If the project is not CEQA-exempt, the Commission shall review it and CEQA clearance must be completed prior to final approval; CEQA can add time and mitigation requirements. See § 17.56.020 and § 17.56.050.

Where can I find the land‑use table for my zone?

Residential uses and standards are in Table 17.10-01 (Residential Zones); commercial/mixed‑use uses are in Table 17.12-01; industrial uses are in Table 17.14-01. Check the applicable table in Article 2 to confirm allowed uses for your parcel. See § 17.10.030, § 17.12.030, § 17.14.030.

Can the Director change setback or development standards during review?

The Director may approve certain modifications (e.g., through the Site Plan & Design Review process or where the Code authorizes adjustments), but substantial changes that require findings or exceptions should be verified and may require concurrent discretionary approvals. See references to permitted modifications and the PD/Final Development Plan process in § 17.14.050 and related sections. Verify with the jurisdiction.

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