Local jurisdiction · Marin County

Belvedere Zoning, Planning & Building Codes

What you can build in Belvedere depends on its local zoning and planning code, layered on the California Building Standards Code. Ask GoCodebook about any Belvedere address.

Key points

Zoning districts & allowed uses Setbacks & height limits FAR, lot coverage & density Building permits Remodels & change of use ADUs & JADUs Parking requirements Planning & design review

Last reviewed: July 1, 2026

Overview

Belvedere’s zoning framework lives in the City’s municipal code as Belvedere Zoning, formally “Title 19 Zoning Ordinance of the City of Belvedere,” and is organized to preserve the city’s small-scale, largely residential character while accommodating state housing mandates and limited mixed-use in the downtown corridor. Title 19 sets citywide rules for uses, setbacks, height, lot coverage and floor area, and it links development approvals to Belvedere Design Review for most exterior work. The code implements objective standards for multifamily, duplex and downtown mixed-use projects, along with overlay tools and a planned development pathway. This page orients you to the structure, the district families actually used in Belvedere, and how state housing laws and local procedures interact in practice.

How Belvedere’s code is organized

  • The zoning rules are codified as “Title 19 Zoning Ordinance of the City of Belvedere,” with stated objectives and scope in Chapter 19.04; notably, Title 19 is the minimum standard for health, safety and welfare and controls over private covenants where stricter, and it directs that SB 9 two‑unit developments be reviewed under Chapter 19.77 if there’s any conflict elsewhere in Title 19 .
  • Zones are established on the official map under Chapter 19.12 (referenced throughout Title 19), and the code is then organized by district chapters (e.g., single‑family, duplex/multifamily, mixed use), followed by citywide “development standards” chapters (yards/setbacks, coverage, floor area, height), and then permits and procedures (conditional use permits, variances, planned unit development) .
  • For most exterior work, Belvedere conditions permit issuance on prior design review under Title 20; in R‑1/R‑15 zones, no building permit issues until design review is approved by the Planning Commission (19.60.010) .
  • Discretionary tools include conditional use permits (Chapter 19.80), variances (Chapter 19.84), and a Planned Unit Development rezone permit (Chapter 19.87) with CEQA processing and City Council approval; PUDs must still meet underlying base-zone density, coverage and height standards and provide public benefits (19.87.040–.070) .

Zoning district families

Belvedere uses a compact set of district “families,” each with its own chapter(s) and objective standards.

  • Residential—Single-family: R‑1C, R‑1L, R‑1W, R‑15. Purpose, permitted and conditional uses, and a summary table appear in Chapter 19.24; all single-family exterior work requires design review (19.24.050–.060) . The R‑1C chapter notes Corinthian Island by name for front setbacks (19.48.050) .
  • Residential—Duplex/Multifamily: R‑2 and R‑3. Chapter 19.28 establishes permitted uses and objective development/design standards for duplex and multifamily zones (19.28.010–.070) . Chapter 19.36 governs R‑3 uses and requires design review for new or altered structures (19.36.010–.050) .
  • Mixed Use: MU. Chapter 19.41 sets objective standards for downtown lots along Tiburon Boulevard, including allowed uses and a full development standards table (19.41.010–.060; Table 19.41‑A) .
  • Open Space & Recreation: O and R zones. These protect scenic open space and parks; development parameters in O and R are assigned through design review or use permits on a case-by-case basis (19.16.010–.050; 19.20.010–.050) .
  • Overlays: SC‑H Senior Citizen‑Handicapped Overlay. This can only overlay R‑3, allowing density/parking waivers subject to a special use permit, with detailed criteria and documentation requirements (19.37.010–.100) . See Belvedere Overlay Districts.

Citywide development standards

Most “numbers”—setbacks, height, lot coverage, floor area, and parking—are consolidated in the 19.44–19.68 series and in the district chapters.

  • Setbacks and yards. Chapter 19.48 establishes how yards are measured and sets front, side and rear setbacks by zone (e.g., variable R‑1 front yard depths based on height within 40 feet of the front line; side/rear rules by zone) (19.48.010–.060, .110–.170) . Duplex and multifamily standards are supplemented by objective tables in Chapter 19.28 (19.28.040–.060) .
  • Height. Heights are set by zone in Chapter 19.56, including: R‑3 up to 36 ft (19.56.020); R‑1L and R‑2 up to 22 ft, with measured-from‑BFE+1' freeboard when FEMA “substantial improvement” applies and exceptions up to 26 ft with added second-story side setbacks (19.56.040, 19.56.080); R‑1W up to 22 ft with a potential 26 ft maximum and height measured from the front curb (19.56.030, 19.56.060, 19.56.100); and “other residential” (including R‑1C/R‑15) up to 28 ft, with a 36 ft allowance on steep lots in R‑15/R‑1C subject to slope and view conditions (19.56.050, 19.56.070). All height approvals are subject to design review (19.56.010) .
  • Lot coverage. Maximum coverage is 30% in R‑15; 40% in R‑1 zones (with 50% in R‑1L for buildings ≤15 ft); 40% in R‑2/R‑3 rising to 50% adjacent to open water (total site coverage up to 60% there); and 50% in MU (with MU also capped at 1.0 FAR) (19.52.030–.070) .
  • Floor area (R‑1/R‑15). Belvedere applies zone-specific floor area limits: R‑1C 0.50 FAR with a 3,500 sf cap; R‑1W 0.40 FAR with a 4,240 sf cap; R‑1L 0.50 FAR with a 4,000 sf cap; R‑15 0.33 FAR with a 4,850 sf cap (19.52.100–.115). A structured exception process exists in 19.52.120, with findings tied to views, neighborhood fit and Title 20 design criteria (19.52.090–.120) .
  • Duplex/Multifamily open space and parking. Objective standards in Chapters 19.28 and 19.52 require usable open space per unit—e.g., R‑2: 300 sf private; R‑3: 200 sf private, with defined substitutions for common space—and off-street parking such as 1.25 spaces per unit for ≤2‑bedroom apartments and 2 spaces for 3+ bedrooms, among other specifics (19.52.130–.140; 19.28.040) .
  • MU downtown. The MU district permits up to 3 stories/45 ft, with 10 ft front/setback baselines, 1 space/unit (shared/common allowed), building stepbacks above the second story, and minimum open space of 400 sf/unit (at least half private); see Table 19.41‑A and Section 19.41.050 (19.41.050–.060) .
  • Citywide parking mechanics. Chapter 19.68 controls how many spaces are required by use, how tandem counts, where spaces may be located, and preservation of existing stalls; district chapters may add design details (e.g., MU parking facility design at 19.41.080) (19.68.010–.080; 19.41.080) . For duplex/multifamily, specific counts and garage/carport requirements appear in 19.28 (19.28.040, .070) .

Tip: In several waterfront and lagoon-adjacent areas, measurement rules pivot to Base Flood Elevation (+1' freeboard) when a “substantial improvement” triggers FEMA standards, which in turn affects the height envelope—particularly in R‑1L and R‑2 and parts of R‑3—so verify which measurement basis applies early (19.56.040, 19.56.080; R‑3 tables cross-reference 19.36.040) .

Specific plans & overlays

  • Senior housing overlay. The SC‑H overlay can be added only to R‑3 parcels, enabling senior/handicapped projects with tailored standards under a special use permit and waivers of density/parking where criteria are met (19.37.010–.070) .
  • Planned Unit Development (PUD). Belvedere allows PUD rezonings (Chapter 19.87) where a City‑approved PUD Permit and Development Agreement set project‑specific parameters; PUDs must still meet the base zone’s density, coverage and height, with findings on general plan consistency, parking adequacy and public benefits (19.87.040–.085) .
  • Other area plans. Not found in retrieved materials; verify with the jurisdiction if any adopted “specific plans” apply to individual sites or corridors.

See Belvedere Overlay Districts for an at‑a‑glance starting point.

Building permits & review

  • Design review gate. In R‑1C, R‑1L, R‑1W, R‑15, the City will not issue a building permit for construction, excavation, grading or exterior alteration until the Planning Commission grants design review under Title 20 (19.60.010) . Single‑family chapters also restate the design‑review requirement (19.24.050) and R‑3 requires it for all new/exterior work (19.36.050) .
  • Permit application contents and compliance. Every building permit application must include a site map/diagram and cannot be issued if contrary to Title 19 unless a variance is granted (19.60.060) . Only one main building is allowed per lot in residential zones, subject to the SB 9 two‑unit exception in Chapter 19.77 (19.60.030) .
  • CUPs and variances. Many district chapters rely on conditional use permits for specific uses (e.g., churches, utilities, certain professional offices in R‑3) with public hearing and findings (19.80.010–.030) . Variances follow mandatory findings on special property circumstances and cannot authorize non‑permitted uses (19.84.010–.020) .
  • Signs. The city’s signage chapter regulates sizes and illumination by zone; for example, residential zones generally allow only small, low‑voltage downlit signs, and moving signs are prohibited (19.72.040–.050) .
  • Landscaping and screening. The code uses a combination of zone‑specific landscape sections (e.g., MU landscape design at 19.41.070, and duplex/multifamily landscaping at 19.28.060) and cross‑references to Title 20 standards; ADU projects must submit a landscape package consistent with MWELO and comply with fence/screening and lighting standards in Title 20 (19.41.070; 19.28.060; 19.79.090–.100) . See Belvedere Landscaping and Screening.
  • Building codes. Construction must also meet the California Building Standards Code (Title 24). Not found in retrieved materials; verify local adoption path with the City’s Building Division.

State housing law in Belvedere

Belvedere implements core California housing mandates through specific Title 19 chapters and cross‑references. See California housing laws for context.

ADUs and JADUs

  • Chapter 19.79 establishes citywide ADU/JADU standards with objective limits on size, height and setbacks, and parking exemptions. Key baselines include: minimum allowance to build at least an 800 sf, 16‑ft‑tall ADU with 4‑ft side/rear setbacks; detached ADUs up to 18–25 ft in specific contexts; and attached ADUs up to 25 ft or the primary dwelling height, whichever is lower (19.79.040–.050; 19.79.070; 19.79.090) . Parking is not required in several transit or conversion cases (19.79.050) .
  • Exceptions to ADU standards are possible via a CUP, but any CUP‑approved ADU is capped at 1,000 sf (with a potential +200 sf size bonus per 19.79.070) (19.79.100) .
  • The chapter expressly yields to California ADU law where state law preempts local rules (19.79.120) .

SB 9 two‑unit developments

  • Chapter 19.77 provides an objective, ministerial path for SB 9 two‑unit developments in R‑1 and R‑15, reviewed by the Planning Director under state timelines (19.77.010–.030) .
  • Qualifying criteria incorporate state screening (e.g., fire hazard, wetlands), limit demolition of exterior walls on recent rentals, bar projects on city/state historic resources, and require compliance with all objective standards unless they physically preclude two units of at least 800 sf each; required side/rear setbacks are 4 ft (19.77.040(C)–(H)) .
  • SB 9 lots that came from an urban lot split: only two primary units are allowed and no ADUs/JADUs may be added on those split parcels (19.77.040(J)) .
  • Parking under SB 9 is 1 space/unit, with exemptions near major transit or car-share (19.77.040(M)) .

Density bonus and objective standards for multifamily/MU

  • Belvedere implements State Density Bonus Law in 19.52.150, requiring the City to grant qualifying incentives/concessions per Gov. Code 65915, processed concurrently with the underlying application (19.52.150) .
  • Objective standards for R‑2/R‑3 and MU are codified to support streamlined, nondiscretionary approvals—e.g., R‑3 lot consolidation incentives (minimum 20–28 du/ac on 0.5‑acre consolidated sites) and MU ministerial review for certain Housing Element sites (19.28.010; 19.28.040; 19.41.010–.020) .

Historic preservation and rent rules

  • SB 9 units are barred on parcels listed as City landmarks/historic properties or on the State Historic Resources Inventory (19.77.040(F))—see Belvedere Historic Preservation for local designation processes. Not found in retrieved materials.
  • Local rent control or rent stabilization provisions were not found in the retrieved Title 19 excerpts. Verify with the City or County housing authority.

Nonconformities and signs

  • Nonconforming uses/structures may continue but are limited in how they can change or expand, with six‑month discontinuance rules and caps on enlargements over any ten‑year period unless fully brought into conformance (19.76.010–.030) .
  • Signage is controlled by Chapter 19.72, which restricts illuminated/moving signs by zone and sets small‑scale allowances in residential districts (19.72.040–.050) .

Quick district snapshot (selected marquee standards)

  • The R‑1 family: coverage tops out at 40% (R‑15: 30%), with zone‑specific FAR caps such as R‑1C 0.50/3,500 sf, R‑1W 0.40/4,240 sf, R‑1L 0.50/4,000 sf, R‑15 0.33/4,850 sf; heights generally 22–28 ft with exceptions; front yards vary by building height within the first 40 ft (19.52.030–.115; 19.56.030–.070; 19.48.040–.060) .
  • The R‑2/R‑3 family: objective open space minimums (R‑2: 300 sf private; R‑3: 200 sf private), parking ratios by unit size, and tailored height/coverage especially near open water; R‑3 offers consolidation/affordability incentives (19.52.130–.140; 19.28.040; 19.52.060; 19.36.040) .
  • MU downtown: 3 stories/45 ft, 10 ft front setback, 1 space/unit, 50% lot coverage with 1.0 FAR cap, plus required stepbacks above the second story (19.41.050; 19.52.070) .

Information Gaps

  • Historic preservation procedures/landmarks chapter and any citywide adoption ordinance for California Building Standards Code were not located in the retrieved excerpts. Verify with the City.
  • No adopted corridor “specific plan” was identified in the retrieved Title 19 text. Confirm with Planning if any area-specific plans have been adopted by resolution or separate title.

Source References

  • Title 19 purpose/scope; SB 9 precedence (19.04.012–.020)
  • Single‑family zones overview and standards summary (19.24.010–.060)
  • Yards/setbacks framework (19.48.010–.060, .110–.170) and R‑1C/Corinthian front setbacks (19.48.050)
  • Lot coverage and FAR by zone (19.52.030–.115; .120 exceptions)
  • Height limits and exceptions; measurement rules (19.56.010–.100)
  • Duplex/multifamily uses and objective standards (19.28.010–.070; 19.52.130–.140)
  • R‑3 permitted/conditional uses; design review (19.36.010–.050)
  • MU district uses and Table 19.41‑A standards (19.41.010–.060, .080–.090)
  • Open Space and Recreation zones (19.16; 19.20)
  • SC‑H overlay (19.37.010–.100)
  • Off‑street parking chapter (19.68.010–.080) and MU parking design (19.41.080)
  • Design review prerequisite to permit issuance (19.60.010); permit compliance and contents (19.60.060)
  • CUPs (19.80.010–.030); Variances (19.84.010–.020)
  • Nonconforming uses/structures (19.76.010–.040)
  • Signs: illumination/moving prohibitions (19.72.040–.060)
  • ADUs/JADUs: baselines, parking, exceptions, preemption (19.79.040–.050, .070, .090–.120)
  • SB 9 two‑unit developments: process/criteria (19.77.010–.040)
  • Density Bonus Law implementation (19.52.150)

Where to read the Belvedere code

The Belvedere municipal and zoning code is published online — view the official Belvedere code library. That lets you read the ordinance section by section.

GoCodebook goes further: it reads the Belvedere ordinance together with the California Building Standards Code and answers your question — zoning, setbacks, FAR, height, ADUs, permits — with the controlling citation for your parcel.

Who this affects

Belvedere homeownersReal estate developersArchitects & designersReal estate agentsInvestorsGeneral contractorsADU buildersPermit consultants

Frequently asked questions

What zoning districts does Belvedere have?

Belvedere’s base districts are single-family (R‑1C, R‑1L, R‑1W, R‑15), duplex (R‑2), multifamily (R‑3), mixed use (MU), and open space (O) and recreation (R) zones; an SC‑H overlay can be applied over R‑3 for senior/handicapped housing (19.24; 19.28; 19.36; 19.41; 19.16; 19.20; 19.37) .

Do I need a permit to remodel in Belvedere?

If the work changes the exterior or site features in R‑1/R‑15, a building permit cannot issue until design review approval is granted under Title 20 (19.60.010); single-family and R‑3 chapters also trigger design review for exterior remodeling (19.24.050; 19.36.050) .

What are typical setbacks, height and FAR for a single-family lot?

Front, side and rear yards vary by zone and building height within 40 ft of the front line (19.48.040–.060, .110–.170). Heights in R‑1L/R‑2 are generally 22 ft with a possible 26 ft exception; R‑1W is 22–26 ft and measured from the front curb; R‑1C/R‑15 allow 28 ft with steep-slope exceptions to 36 ft (19.56.030–.080, .100). FAR caps include R‑1C 0.50/3,500 sf, R‑1W 0.40/4,240 sf, R‑1L 0.50/4,000 sf, R‑15 0.33/4,850 sf (19.52.100–.115) .

Can I add an ADU or JADU, and what are the basics?

Yes. Chapter 19.79 sets objective rules and guarantees at least an 800 sf, 16‑ft‑tall ADU with 4‑ft side/rear setbacks; attached and detached ADUs have height/size variations, and required parking is broadly exempt if near transit or for conversions (19.79.040–.050; 19.79.070; 19.79.050) .

How does SB 9 (two-unit development) work in Belvedere?

Two primary units can be approved ministerially on R‑1/R‑15 parcels that meet SB 9 criteria; the City applies objective standards and must modify them only as needed to avoid physically precluding two 800 sf units. Parcels in historic districts and recent rentals are barred, and parking is 1 space/unit with transit/car‑share exemptions (19.77.010–.040) .

Does Belvedere have rent control?

No rent control provisions were located in the retrieved Title 19 excerpts. However, SB 9 screening bars projects on parcels recently withdrawn under the Ellis Act and restricts demolition of exterior walls on recently rented homes (19.77.040(D), (E)). Verify broader rent rules with the City or County housing authority .

What are the downtown MU rules for mixed-use apartments?

MU allows apartments (standalone or mixed-use) with up to 3 stories/45 ft, 10 ft front setbacks, 1 space/unit (shared allowed), and 400 sf/unit usable open space (half private). Objective design standards and ministerial processing apply to certain Housing Element sites (19.41.020; 19.41.050; Table 19.41‑A) .

Can nonconforming homes be enlarged?

Nonconforming structures may be repaired and can be enlarged only if the addition fully complies with current laws and the total added floor area over any 10‑year period does not exceed 50% of the existing gross floor area (19.76.030(B)) .

Are there special rules near the lagoon or open water?

Yes. Coverage can increase to 50% on R‑2/R‑3 lots adjacent to open water (total up to 60%), and in R‑1L/R‑2 height is measured from Base Flood Elevation +1' during FEMA “substantial improvement” projects (19.52.060; 19.56.040) .

Where do I find sign and fence/screening regulations?

Signs are in Chapter 19.72 (illumination/motion limits by zone) and fences/screening are addressed via Title 20 standards applied in project review; ADU projects must also follow MWELO landscaping and exterior lighting requirements (19.72.040–.060; 19.79.090) .

More in Belvedere code

Ask about any Belvedere property

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

Start Free Trial

Other jurisdictions in Marin County