Windsor — Land Use

Last reviewed: July 3, 2026

Overview

This page summarizes what the Town of Windsor's Zoning Code (Title 17) actually says about land use — which uses are allowed where, the permit types you’ll face, and the key dimensional/intensity controls that govern what can be built. For a map-level view start with the city's Windsor Zoning overview. Key organizing chapters are Article 2 (zones and allowable uses), Article 3 (regulations that apply to all zones), and the land-use tables (Tables 17.10‑01, 17.12‑01, 17.14‑01). See the controlling permit chapters for Zoning Clearances, Minor/Conditional Use Permits, and Site Plan & Design Review when planning a project. (§ 17.10.030; § 17.12.030; § 17.14.030)

Notes on links used below: the first natural mention of each of the related operational topics is linked to the internal reference pages: Windsor Zoning, development standards, parking, design review, overlay districts, ADUs, and the California Building Standards Code.

How Windsor organizes land use rules (big picture)

• Uses are controlled primarily by the Land Use Regulation tables: Table 17.10‑01 (Residential zones), Table 17.12‑01 (Commercial & Mixed‑Use), and Table 17.14‑01 (Industrial). Each table lists allowed-by-right (P), Minor Use Permit (MUP), Conditional Use Permit (CUP) or not allowed. (§ 17.10.030; § 17.12.030; § 17.14.030)
• If a use is not listed in the applicable table, it is not allowed unless the Director makes a determination under the "uses not listed" rule. (§ 17.04.030.A)
• Many uses have additional, standalone-specific regulations (for example, retail firearm sales, short‑term rentals, tiny homes). Those specific rules are located in Article 4 (Specific Use Regulations) (see, e.g., § 17.40.220 for restricted retail firearm sales).
• Routine approvals and thresholds: allowed-by-right uses typically still require a Zoning Clearance (Chapter 17.54); some projects trigger Site Plan & Design Review (Chapter 17.56) or require a Minor/Conditional Use Permit (Chapter 17.58). (§ 17.10.030 notes; § 17.56.020; Chapter 17.58)

District-by-district breakdown (what matters on first pass)

Note: below each named district you will find the district purpose, typical permitted uses (high‑level), key dimensional/intensity standards called out in the code, and where the zone is generally applied. Citations point to the controlling Windsor Zoning Code sections and tables.

RR, ER, SR, VR, MDR, CR (Residential zones)

• Purpose: Lower‑intensity through medium‑density residential zones; the land use tables for residential uses are in Table 17.10‑01 and development standards are in Table 17.10‑02. (§ 17.10.030; § 17.10.040)
• Typical permitted uses: single‑unit dwellings, accessory structures, small‑scale home occupations, some agricultural accessory uses; special uses (e.g., SB 9 two‑unit dwellings, tiny homes) are explicitly addressed in the land use table or specific chapters. (Table 17.10‑01; § 17.94; § 17.102)
• Key standards (typical): front setback 20 ft, rear 20 ft, side 5 ft (see Table 17.10‑02 for zone‑specific numbers and exceptions); project design must also follow general rules on setbacks, lot coverage, and parking. (§ 17.10.040; § 17.20.070)
• Where applied: mapped according to the Town Zoning Map (Chapter 17.06) and consistent with General Plan land use categories. (§ 17.10.020)

TC, TC‑AUFO, TCEO, NCMU, CC, SC, GC, BMU, RC, BCMU (Commercial & Mixed‑Use zones)

• Purpose: Ranges from neighborhood commercial to transit/downtown‑oriented mixed use; uses are listed in Table 17.12‑01, and certain frontages, block perimeters, and interface standards are in Table 2‑5 / § 17.12.060. (§ 17.12.030; § 17.12.060)
• Typical permitted uses: retail, restaurant, office, visitor‑serving lodging, institutional uses (with zone‑by‑zone differences). Residential is allowed in commercial zones only on upper floors or behind street‑fronting commercial uses (Table 17.12‑01 Notes). (§ 17.12.030; § 17.12.040.D)
• Key standards to watch:
  • BMU density: 16–32 du/acre; nonresidential FAR 0.5–2.0 (§ 17.10.020.H).
  • RC maximum FAR 0.8 (§ 17.10.020.I).
  • BMU and RC maximum front setback: 5 ft (up to 20% facade may be 10 ft); BMU stoop/frontage exception up to 12 ft. (§ 17.12.060.C).
  • First‑floor commercial facades in BCMU/RC must be at least 12 ft high. (§ 17.12.060.E)
• Where applied: downtown/station area, along boulevards and commercial corridors; properties inside the Windsor Station Area/Downtown Specific Plan are subject to its standards where conflicts arise. (§ 17.10.030.F)

BPI, LI, HI (Industrial zones)

• Purpose: industrial and employment uses — BPI (Business Park/Industrial) for clean/light industrial and corporate campus uses; LI (Light Industrial) for light manufacturing/warehousing; HI (Heavy Industrial) for heavier, land‑intensive uses. (§ 17.14.020)
• Typical permitted uses: manufacturing, warehousing, freight/vehicle terminals (zone‑dependent), utility infrastructure; residential uses are generally prohibited except where the table explicitly allows them. (Table 17.14‑01; § 17.14.030)
• Key standards: maximum FAR: BPI 0.6, LI 0.6, HI 0.5; typical max height ~50 ft; front setback 10 ft is common in the industrial table unless otherwise specified. (Table 17.14‑02; § 17.14.050)
• Where applied: mapped industrial parks and employment areas per the Zoning Map. (§ 17.14.010)

PD, OS, PI, REC (Special purpose zones)

• Purpose and flexibility: PD (Planned Development) is used where a custom mix of uses and standards is desired; a Preliminary Development Plan during rezoning specifies allowed uses, densities, FAR, and standards. OS, PI, and REC are used for open space, public/institutional, and recreation respectively. (§ 17.16.050; § 17.16.020; § 17.16.030)
• Key process note: PD rezoning requires Council approval of the Preliminary Development Plan and will spell out permit requirements (Zoning Clearance vs. MUP vs. CUP) and development standards that apply to the site. (§ 17.16.050.A)

Overlay zones (mapping and how they change base rules)

• Windsor uses suffix overlays (e.g., base zone with -AS or -FH) where special constraints apply. Overlays do not replace the base zone: the most restrictive applicable provision controls. Mapping of overlay applicability is shown by suffixes on the Zoning Map. (§ 17.18.020)
• Examples:
  • -AS (Airport Safety) applies airport land‑use restrictions, may impose height limits, open‑space requirements, limits on intensity, noise mitigation, and recorded avigation easements. (§ 17.18.030)
  • -FH (Flood Hazard) applies flood protection rules and does not change the underlying allowed uses but imposes development standards. (§ 17.18.040)

Quick reference table — commonly decision‑relevant entries

How permits and review layer on top of the tables (practical guidance)

• Allowed‑by‑right entries in the tables still typically require a Zoning Clearance (Chapter 17.54). Confirm whether your proposed use is P, MUP, or CUP in the relevant table (Tables 17.10‑01 / 17.12‑01 / 17.14‑01). (§ 17.10.030; § 17.14.030)
• Projects with new construction, substantial changes, or those not exempt under the small‑project rules will need Site Plan & Design Review. Small accessory projects may qualify for Director‑level review or be exempt; see the design review rules and Table 17.56‑01. (§ 17.56.020)
• Special uses (e.g., retail firearm sales) have stand‑alone sections with extra approval findings, location buffers, and security requirements — check the specific § (example § 17.40.220 for restricted retail sales).
• Parking standards, landscaping, and loading requirements are supplemental chapters that apply to every zone — consult the Parking chapter when sizing your site layout. (Chapter 17.30; cross‑references in development tables)

(Internal links used where each term first appears: Windsor Zoning, Windsor Development Standards, Windsor Parking, Windsor Design Review, Windsor Overlay Districts, Windsor ADUs, California Building Standards Code.)

Checklist — what an applicant must satisfy (practical)

• Confirm the parcel’s base zone and any overlay suffix on the Town Zoning Map (Chapter 17.06) and verify permitted status in the correct table (Table 17.10‑01 / 17.12‑01 / 17.14‑01). (§ 17.10.030; § 17.12.030; § 17.14.030)
• Determine whether the use is P, MUP, or CUP in the table and plan the appropriate filing (Zoning Clearance — Chapter 17.54; MUP/CUP — Chapter 17.58). (§ 17.10.030; Chapter 17.58)
• Confirm development standards that apply (setbacks, height, FAR, lot coverage) by zone (Table 17.10‑02 / 17.12‑02 / 17.14‑02) and check any Overlay requirements. (§ 17.10.040; § 17.12.050; § 17.14.050; § 17.18.020)
• Prepare materials for Site Plan & Design Review if required (Chapter 17.56) and anticipate design standards that differ inside the Windsor Station Area/Downtown Specific Plan. (§ 17.56.020; § 17.10.030.F)
• Confirm parking calculations, loading, landscaping, and tree protection rules in Chapters 17.30, 17.28, and 17.22 as applicable. (§ 17.20.030; Chapter 17.30; § 17.22.030)
• For certain site contexts, be prepared to meet overlay‑specific obligations (e.g., noise/aviation easements for -AS overlay; flood building requirements for -FH). (§ 17.18.030; § 17.18.040)

Risks & Ambiguities

Plain-English summary

Windsor's Zoning Code controls allowed uses by zoning table: find your parcel's zone, check the land‑use table for P / MUP / CUP, then apply the zone's numeric standards (setbacks, heights, FAR) and any overlay rules. Expect zoning clearance for most by‑right uses, design review for new or substantial work, and specialized extra rules for certain uses (firearms, emergency shelters, airport areas). Always verify overlay mapping and PD conditions. (§ 17.10.030; § 17.56.020; § 17.18.020)

Information Gaps

• Exact numerical lot coverage percentages and some zone‑by‑zone height limits beyond the excerpts (many are in the full development tables) — these are in the full Table 17.10‑02 / 17.12‑02 / 17.14‑02 but were not fully reproduced in the retrieved excerpts. Verify with the table relevant to your parcel. (Not found in retrieved materials; see Table references.)
• Parcel‑specific map application (Zoning Map parcel suffixes) — the Zoning Map itself is not included in the text excerpts here. Verify on the Town's official zoning map. (Not found in retrieved materials)
• Any amendments adopted after the ordinance print referenced in the file — always confirm the code online for amendments. (§ 17.02.050 notes)

Source References

• Town of Windsor Zoning Code (Title 17), Chapter and section references quoted above: § 17.02.010, § 17.10.020, § 17.10.030, § 17.10.040, Table 17.10‑01, Table 17.10‑02.
• Commercial & Mixed‑Use rules and standards: § 17.12.030, § 17.12.050, § 17.12.060, Table 17.12‑01 / Table 2‑5 notes.
• Industrial zones and standards: § 17.14.010 through § 17.14.050, Table 17.14‑01 and Table 17.14‑02.
• Site Plan & Design Review: § 17.56.020 and Table 17.56‑01.
• Uses not listed / Director determination: § 17.04.030.A (Uses Not Listed are Not Allowed).
• Specific use example — retail firearms: § 17.40.220 (Retail Sales, Restricted).
• Overlay zones: § 17.18.020 (Applicability), § 17.18.030 (-AS Airport Safety), § 17.18.040 (-FH Flood Hazard).
• Nonconforming uses: Chapter 17.70 (Loss / discontinuance rules, e.g., six‑month discontinuance).

(Primary source file: Windsor_ZoningCode.md — extracted sections from the Town of Windsor Zoning Code used above.)

Retrieved passages

• Windsor Zoning Code (section shall) High relevance show source text
• Windsor Zoning Code (Chapter 17.54) High relevance show source text
• Windsor Zoning Code (Article 2) High relevance show source text
• Windsor Zoning Code (Chapter 17.14.) High relevance show source text
• Windsor Zoning Code (section shall) High relevance show source text
• CFC § 179 High relevance show source text
• Windsor Zoning Code (Article 7) Medium relevance show source text
• Windsor Zoning Code (Chapter or) Medium relevance show source text
• Windsor Zoning Code Medium relevance show source text
• Windsor Zoning Code (Chapter 17.14.) Medium relevance show source text
• Windsor Zoning Code Medium relevance show source text
• Windsor Zoning Code (Chapter 17.54) Medium relevance show source text
• Windsor Zoning Code (Chapter 17.58) Medium relevance show source text

Cited sections

• Town of Windsor Zoning Code (Title 17), Chapter and section references quoted above: **§ 17.02.010**, **§ 17.10.020**, **§ 17.10.030**, **§ 17.10.040**, **Table 17.10‑01**, **Table 17.10‑02**. (Title 17)
• Commercial & Mixed‑Use rules and standards: **§ 17.12.030**, **§ 17.12.050**, **§ 17.12.060**, Table 17.12‑01 / Table 2‑5 notes. (§ 17.12.030)
• Industrial zones and standards: **§ 17.14.010** through **§ 17.14.050**, Table 17.14‑01 and Table 17.14‑02. (§ 17.14.010)
• Site Plan & Design Review: **§ 17.56.020** and Table 17.56‑01. (§ 17.56.020)
• Uses not listed / Director determination: **§ 17.04.030.A** (Uses Not Listed are Not Allowed). (§ 17.04.030.A)
• Specific use example — retail firearms: **§ 17.40.220** (Retail Sales, Restricted). (§ 17.40.220)
• Overlay zones: **§ 17.18.020** (Applicability), **§ 17.18.030** (-AS Airport Safety), **§ 17.18.040** (-FH Flood Hazard). (§ 17.18.020)
• Nonconforming uses: Chapter 17.70 (Loss / discontinuance rules, e.g., six‑month discontinuance). (Chapter 17.70)
• Windsor_ZoningCode.md

• Official Windsor code library