Local zoning · Sebastopol

Sebastopol — Land Use

Land Use under the Sebastopol local zoning and planning code, with the controlling citations.

Last reviewed: July 2, 2026

Overview

This page explains how the City of Sebastopol’s local zoning (Title 17) controls what uses are allowed on property, which uses require a conditional use permit, and the district-specific development standards you must meet. It summarizes the City’s district map, the primary permitted vs. conditional-use rules, important development limits (heights, setbacks, lot-size/FAR rules), and key overlays (wetlands, open-space, planned community). All items below are grounded in Sebastopol’s Zoning Code; specific controlling code citations are shown inline so you can verify the ordinance language. Verify with the jurisdiction for parcel-specific interpretations.

Note: links below point to related local pages you’ll likely need while preparing an application: parking, Sebastopol Zoning, Sebastopol Development Standards, Sebastopol Design Review, Sebastopol Overlay Districts, Sebastopol ADUs, and the California Building Standards Code.


District-by-district breakdown (purpose, typical uses, key dimensional standards, where it applies)

  • How to read this section: each district name is bolded (the exact local designation). The ordinance chapters cited below are the controlling references; see the Source References list for full citations. Where a numeric standard is listed below (height, setbacks, lot coverage, FAR), the exact ordinance reference is cited.

Residential districts — overview

Sebastopol’s base residential districts are R-1, R-2, R-3, R-4, R-5, R-6, R-7, and MHP (mobile home park). The broad purposes and allowed densities are in § 17.20.010; single-family and multi‑family rules (permitted vs conditional uses) are detailed throughout Chapter 17.20. § 17.20.010

  • R-1 (Single-Family Residential): Purpose—very low density, implements “Very Low Density Residential” General Plan category; density up to 1 unit/acre. Typical permitted uses: single-family dwellings, accessory uses (note: accessory dwelling units are separately regulated) and agriculture where appropriate; other uses require CUP. See § 17.20.010

    • Key standards to check on a parcel-specific basis: lot coverage and setbacks (see Chapter 17.20 development tables — Verify with the jurisdiction); accessory buildings placement rules in § 17.100.080. § 17.100.080
  • R-2 – R-7: Purpose—progressively higher-density residential categories (R-2 ≈ low density up to ~2.5 du/acre; higher R-districts permit increased densities and multifamily). Permitted uses: single-family and multifamily per district tables; conditionally allowed uses include small institutional or care uses per local definitions. See § 17.20.010

  • MHP: Mobile home park regulations and permitted uses governed by Chapter 17.20 and related development standards; consult Chapter 17.20 for density and special rules. § 17.20.010

Practical notes: residential accessory buildings and permitted encroachments into yards (e.g., ramps) are regulated by § 17.100.080 (allowed projections, accessory building placement) — check this early in project scoping. § 17.100.080


Commercial / Office / Industrial districts (summary)

Chapter 17.25 governs the CO, CG, CD, M, OLM, and CM districts and contains the primary development standard table Table 17.25-2 (lot size, height, maximum single establishment floor area, etc.). See Table 17.25-2 and Chapter 17.25. Table 17.25-2 / § 17.25

  • CO (Convenience/Office): Typical permitted uses include small convenience sales and service (e.g., barber, small food store) with maximum single establishment floor area for convenience uses: 5,000 sq ft. Refer to Table 17.25-2. Table 17.25-2

  • CG (General Commercial) and CD (Central/Downtown): Used for broader retail and mixed commercial uses. The CD Central Core has special rules for building height and first-floor requirements (see Chapter 17.25 and CD-specific notes in Table 17.25-2). Table 17.25-2

  • M (Industrial) and OLM (Office/Light Industrial): Industrial uses and light industrial/office allowed; minimum lot area and setbacks are larger in industrial zones (see Table 17.25-2). Table 17.25-2

  • CM (Commercial Industrial): Hybrid commercial/industrial uses permitted consistent with Chapter 17.25. § 17.25

Decision triggers in commercial zones:

  • New development thresholds (e.g., ≥ 20,000 sf and ≥ 25,000 sf) can trigger conditional review in some commercial/industrial districts — see the uses table and notes in Chapter 17.25. § 17.25
  • Special use categories such as service stations and car washes are regulated in Chapter 17.345 (detailed locational/site-size and setback rules) — see § 17.345.010. § 17.345.010

Practical link: for required off‑street parking calculations consult parking; the parking schedule and standards live in § 17.110.030 and Table 17.110-3. § 17.110.030


Community Facilities — CF

  • Purpose: governmental, public utility, educational facilities, parks and open space in public ownership. Permitted and conditional civic uses listed in Table 17.30-1; development standards in Table 17.30-2. See § 17.30.010 – § 17.30.030. § 17.30.020
  • Key standards (examples): maximum building height 32 ft, front yard setback 15 ft, side yard 5 ft, buffering/screening required where CF abuts residential — see Table 17.30-2. Table 17.30-2 / § 17.30.030

Open Space — OS

  • Purpose: preserve rural/agricultural setting and natural resources (implements General Plan “Open Space”). Permitted uses are limited to passive recreation, habitat restoration, community parks focused on environmental education; all other uses require a conditional use permit. § 17.32.010 – § 17.32.020
  • Key dimensional standards (Table 17.32-1): maximum building height one story not to exceed 17 ft, front yard 20 ft, side 10 ft, rear 20 ft, maximum FAR 0.10. § 17.32.030

Notable procedural requirement: any development in OS must follow specific review criteria; see Chapter 17.32 for details. § 17.32.030


Planned Community — PC

  • Purpose: allows master-planned mixed-use projects that deviate from strict district requirements; no permitted uses by right — all uses require a conditional use permit. The PC requires a policy statement and development plan with a rezone to PC; see § 17.40.010 – § 17.40.060. § 17.40.020
  • Minimum size: PC District required minimum 12,000 sq ft; development criteria require on-site amenities and at least 10% private open space/community activity area. § 17.40.040 – § 17.40.060

Wetlands / Environmental Combining Districts — W, WS, WF

  • These are combining districts placed over base zones to protect wetlands and vernal-pool habitat. Permitted uses are tightly limited (e.g., open agricultural uses, passive recreation); most other uses require a conditional use permit. See Chapter 17.44 and § 17.44.040 (development criteria and agency referral requirements). § 17.44.040
  • Required submittals for development in these districts include vernal pool / rare plant surveys (see § 17.44.050) and referral comments from resource agencies (State Dept. of Fish & Wildlife, USACE, etc.). § 17.44.040

Overlay districts and special chapters

  • ESOS (Environmental & Scenic Open Space), REC (Recovery) and other overlays are listed in the zoning map index and have additional standards where applicable; consult Chapter 17.46 and the overlay map. Chapter index: § 17.46
  • Formula business rules (downtown-specific limits and CUP findings) are in Chapter 17.340; prohibited formula business types and CUP findings are specifically spelled out for the Downtown area in § 17.340.040 – § 17.340.070. § 17.340.040

Key decision-relevant standards (compact table)

Issue / Use Typical rule in Sebastopol Code Reference
Single-family residential allowed Allowed in R-1R-7 as specified by Chapter 17.20 § 17.20.010
Open space uses (parks, restoration) Permitted uses limited to passive recreation and habitat restoration; others need CUP § 17.32.020 / Table 17.32-1 § 17.32.030
Commercial floor-area limits Convenience retail limit 5,000 sf in CO; larger thresholds trigger CD/CUP Table 17.25-2 / § 17.25
Service stations/car washes Special locational/site standards (150 ft frontage min; not adjacent to residential; min site area 15,000 sf) § 17.345.010
Wetlands development Vernal pool surveys and agency referrals required; most non‑open uses need CUP § 17.44.040
Parking requirements Off-street parking standards by use in Table 17.110-3; Planning Commission can modify by CUP § 17.110.030
Cannabis uses Detailed permitted/conditional matrix by district (residential/commercial tables) Chapter 17.360 (e.g., § 17.360.130)
Formula businesses downtown Certain formula businesses prohibited on downtown street fronts; CUP requirements and findings § 17.340.040§ 17.340.070

Practical guidance and synthesis (plain-English, application-focused)

  • Start with the zoning map: confirm the base zone and any overlay combining districts that apply to your parcel, because overlays (especially W/WS/WF) can convert an otherwise-permitted project into a conditional or prohibited one — see § 17.10.020 and Chapter 17.44. § 17.10.020 § 17.44.040
  • If the use is not expressly listed as “permitted” in the district table, assume conditional use permit required unless a specific provision says otherwise; the code defines “permitted” vs “conditionally permitted” in § 17.08.020.D–E. § 17.08.020
  • For commercial projects, check Table 17.25-2 early for maximum single-establishment floor area and height; exceeding certain size thresholds (e.g., ≥ 20,000 sf, ≥ 25,000 sf) will bring heightened review. Table 17.25-2
  • Expect site design and architectural review: projects in PC districts and many commercial projects require design review; consult Sebastopol Design Review and Chapter 17.40 for PC submittal requirements. § 17.40.060
  • Parking: use Table 17.110-3 for the baseline; the Planning Commission can require more or fewer spaces by CUP where justified; consider early coordination on parking solutions. See parking and § 17.110.030. § 17.110.030
  • Sensitive uses (gas stations, large auto facilities, cannabis, certain entertainment/night uses) have their own chapters with locational and operational standards — read the specific chapter (e.g., 17.345 for service stations, 17.360 for cannabis) early. § 17.345.010 § 17.360.130

Checklist (what an applicant must satisfy)

  • Confirm parcel’s base zone and any combining/overlay districts per the Zoning Map (verify with Planning) — § 17.10.020
  • Determine whether the proposed use is permitted (P) or conditioned (CUP) in that district using the district use table (Chapter 17.20, 17.25, 17.30, etc.) — § 17.08.020
  • Check dimensional limits (height, setbacks, lot area, FAR, lot coverage) in the applicable district table (e.g., Table 17.32-1, Table 17.25-2, Table 17.30-2) — § 17.32.030, Table 17.25-2
  • Confirm off-street parking and bicycle/EV requirements (Table 17.110-3) and include in site plan — § 17.110.030
  • Identify if design review is required and prepare materials accordingly — Sebastopol Design Review; § 17.40.060
  • If an overlay applies (wetlands, ESOS, etc.), prepare required environmental surveys (e.g., vernal pool/rare plant surveys) and agency referrals — § 17.44.050 – § 17.44.040
  • For formula business proposals in Downtown, check the formula business rules and prepare CUP findings if required — § 17.340.040 – § 17.340.070
  • Check special chapters for your use (service station § 17.345.010, cannabis Chapter 17.360) and include any additional operational or locational submittals. § 17.345.010 § 17.360.130

Risks & Ambiguities

Issue Why it matters What to verify
Parcel straddles two zones Different permitted uses and setbacks apply depending on which zone controls Obtain Planning’s formal determination of boundary and applicable standards; see § 17.10.030
Overlay (W/WS/WF) on site Wetland overlays often convert permitted uses into conditional or prohibited and require surveys/agency referrals Confirm overlay extent on zoning map; prepare vernal-pool/rare-plant survey per § 17.44.050 and agency referrals under § 17.44.040
Use classification (“is my use retail, convenience, or service?”) Use classification determines permitted vs. conditional status Check definitions in Chapter 17.08 and the specific use table in the subject district; if ambiguous, request Planning Director interpretation — see § 17.08.020
Large retail threshold triggers additional review Projects above 20k–25k sf may require CUP or higher review authority Check Table 17.25-2 and district-specific use notes; confirm applicability with Planning — Table 17.25-2
Formula business limits downtown Certain formula businesses prohibited or require CUP downtown Confirm downtown boundaries and follow formula business CUP process in Chapter 17.340§ 17.340.050 – § 17.340.070

Plain-English Summary

Sebastopol’s zoning code divides the city into named districts (for example R-1, CO, CD, OS, CF, PC) each with its own list of uses that are either allowed outright or allowed only with a conditional use permit; additional combining overlays (especially wetlands) can significantly restrict development. Start by confirming the parcel’s base zone and overlays, then check the district use table and development standard tables (height, setbacks, floor-area limits) and the parking rules; wetlands and certain specialized uses require extra studies or CUP-level review. Key references: Chapter 17.20 (residential), Chapter 17.25 (commercial), Chapter 17.32 (open space), Chapter 17.44 (wetlands). § 17.20.010 § 17.25 § 17.32.020 § 17.44.040


Source References

  • City of Sebastopol Zoning Code (Draft Title 17: Zoning Code), Zoning Code adoption, purpose and scope: § 17.04.010 – § 17.04.050.
  • Definitions and “permitted / conditionally permitted” language: § 17.08.020 – § 17.08.060.
  • Residential district purposes and applicability (R‑1 through R‑7, MHP): § 17.20.010.
  • Commercial/Office/Industrial development standards and use table (Table 17.25-2): Chapter 17.25 / Table 17.25-2.
  • Community Facilities (CF) uses and Table 17.30-1 / 17.30-2 development standards: § 17.30.020 – § 17.30.030.
  • Open Space (OS) permitted uses and Table 17.32-1 development standards: § 17.32.010 – § 17.32.030.
  • Planned Community (PC) district rules and required policy statement/development plan: § 17.40.010 – § 17.40.060.
  • Wetlands combining districts development criteria and agency referral requirements: § 17.44.040 – § 17.44.050.
  • Parking schedule & authority to modify parking by CUP: § 17.110.030 and Table 17.110-3.
  • Formula business standards and CUP findings (Downtown): Chapter 17.340 (e.g., § 17.340.040 – § 17.340.070).
  • Service station and car wash special standards: § 17.345.010.
  • Cannabis uses matrix and permit grounds: Chapter 17.360 (e.g., § 17.360.130).

Sources

Retrieved passages

  • Sebastopol Zoning Code (Title 17) High relevance
  • Sebastopol Zoning Code (Title 17) High relevance
  • Sebastopol Zoning Code (Title 17) High relevance
  • Sebastopol Zoning Code (Title 17) High relevance
  • Sebastopol Zoning Code (chapter shall) High relevance
  • Sebastopol Zoning Code (Title 17) High relevance
  • Sebastopol Zoning Code (Title 17) High relevance
  • Sebastopol Zoning Code (Title 17) High relevance

Cited sections

Frequently asked questions

What can I build on an R-1 lot in Sebastopol?

R-1 is the very low-density single‑family district; typical permitted uses are single‑family dwellings and accessory uses, with densities up to about 1 unit per acre. Any use not listed as permitted in the R‑district tables requires a conditional use permit. See § 17.20.010 for the district purpose and Chapter 17.20 for the use tables. § 17.20.010

What are Sebastopol setback and height requirements for the OS (Open Space) district?

Open Space (OS) limits development: maximum building height one story, not to exceed 17 ft, front yard 20 ft, side yard 10 ft, rear yard 20 ft, and maximum FAR 0.10 per Table 17.32-1. All other uses generally require a CUP. § 17.32.030

Are gas stations allowed anywhere in Sebastopol?

Gas stations and car washes are regulated by special standards; they must meet locational/site criteria (for example minimum site area 15,000 sq ft, frontage on arterial/collector, setbacks and separation from residential) and are further controlled by the underlying zone. See § 17.345.010 for the detailed rules. § 17.345.010

Do I need a conditional use permit for a new 25,000 sq ft retail store?

Large developments can trigger conditional review: some new development thresholds (for example ≥ 20,000 sf or ≥ 25,000 sf) require conditional use permit review in specific districts per the tables in Chapter 17.25 — check Table 17.25-2 and the district use notes to determine whether CUP is required. Table 17.25-2

Will wetlands overlays require special studies?

Yes. Development in W, WS, or WF combining districts requires vernal pool/rare plant and native vegetation surveys and specific agency referrals (State Dept. of Fish & Wildlife, USACE, others) before an application is complete. See the development criteria and required referrals in § 17.44.040 and survey requirement § 17.44.050. § 17.44.040

What if my proposed use is not clearly listed in the district use table?

If a use is ambiguous, consult Chapter 17.08 definitions; the Planning Director or Planning Commission can interpret use classification. The code defines “permitted” vs “conditionally permitted” and gives guidance for interpretation in § 17.08.020. § 17.08.020

Do accessory dwelling units (ADUs) count as 'accessory buildings' in Sebastopol?

No — the code states that ADUs “allowed for in this title shall not be considered accessory structures or buildings.” ADU-specific rules are in a separate chapter and must comply with state ADU law; consult the City ADU page for local ADU procedures. § 17.08.030

Is design review required for a planned community (PC) project?

Yes. A PC rezone and subsequent development must include a policy statement and development plan; design review board comments are required as part of the PC process and design review approval is required for development proposals in a PC district. See § 17.40.020 – § 17.40.060. § 17.40.020

Where are the parking requirements I must meet for my proposed commercial use?

Off‑street parking standards are in Table 17.110-3 and administered under § 17.110.030; the Planning Commission can adjust parking requirements by CUP in certain circumstances. See the City parking chapter for the full schedule. § 17.110.030

Are formula (chain) businesses restricted in Downtown Sebastopol?

Yes. The code prohibits certain formula business types on downtown street fronts and requires a conditional use permit for other formula businesses with specific findings. See Chapter 17.340 for the prohibitions, exemptions, and CUP findings. § 17.340.040

More in Sebastopol code

Ask about any Sebastopol property

Get a cited, plain-English answer on Sebastopol zoning, setbacks, FAR, ADUs and permits — for any address.

Start Free Trial

More Sebastopol zoning topics