Local zoning · Belvedere

Belvedere — Development Standards

Q: What are Belvedere’s front setback rules for homes?

In most residential zones, the front setback is 15 ft , but it can drop to 10 ft if the building is ≤25 ft tall within the first 40 ft from the street, and to 5 ft if ≤15 ft in that same band. R‑1C is different: the line is at the street or 5 ft from the improved street line—whichever is farther from centerline. If the curb is ≥10 ft from your front property line, subtract 5 ft from the required setback .

Q: How tall can a house be on the Lagoon (R-1L) or West Shore (R-1W)?

Both R‑1L and R‑1W have a base max of 22 ft with a potential bonus to 26 ft by increasing the average second‑story side setback. In R‑1W , height is measured from the top of curb; in R‑1L (and R‑2 ), a FEMA “substantial improvement” shifts the datum to BFE + 1 ft ; in no event above 29 ft from existing grade .

Q: What is Belvedere’s FAR limit for single-family properties?

FAR caps vary: R‑1C 0.50 (max 3,500 sf ), R‑1W 0.40 (max 4,240 sf ), R‑1L 0.50 (max 4,000 sf ), R‑15 0.33 (max 4,850 sf ). Floor‑area exceptions may be granted if strict findings are met, and an “existing floor area” exemption may apply on R‑1/R‑15 lots already improved with conforming or legal nonconforming structures .

Q: How does density work in the R-2 and R-3 zones?

Both R‑2 and R‑3 show a base density range of 5–20 units per net acre (as guided by the General Plan). R‑3 includes an incentive program: on consolidated sites ≥0.5 acre with ≥20% low‑income units, density is 20–28 units per net acre , with modified parking, open space, coverage, and up to 38 ft height on Beach Road .

Q: What open space is required for multifamily?

In R‑3 , provide at least 200 sf private usable open space per unit (with dimensional minimums and allowances to substitute common space). In R‑2 , provide 300 sf private usable open space per unit, with similar substitution rules .

Q: What are the mixed-use (MU) standards I should know first?

MU projects must meet 30–35 du/ac , max FAR 1.75 , up to 45 ft/3 stories with stepbacks above 30 ft, front 10 ft setbacks, 1 space per unit , and 400 sf/unit usable open space (at least 200 sf private). Residential must be at least 50% of total floor area in a mixed-use development .

Q: How do setbacks work next to water or alleys?

Rear yards citywide are 20 ft (lot), 15 ft (street), 10 ft (water/alley/private way), with exceptions: R‑1C rear on street is 10 ft , and R‑1L rear on water is 15 ft . In R‑1L , measure side/rear setbacks from the summer-level high-tide water edge, not the deed line .

Development Standards under the Belvedere local zoning and planning code, with the controlling citations.

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Last reviewed: July 1, 2026

Overview

This page summarizes the dimensional and quantitative development standards in Belvedere’s zoning ordinance, Title 19 Zoning, with a focus on setbacks, height, lot coverage, floor area ratio (FAR), and residential density. Where a standard varies by zoning district or special overlay, it is called out with the controlling code citation. For broader context on how these standards fit into Belvedere’s system, see the Belvedere Zoning and Belvedere Land Use pages.

Citywide measurement rules you will use in every district

Setback measuring basics: Required yards are measured from the property line to the nearest point of a structure; carports/garages must also respect a 20 ft cross‑street clearance. If the improved curbline is at least 10 ft away from the front property line, the specified front setback is reduced by 5 ft. In the R-1L zone, setbacks abutting water are measured from the summer-level high-tide water’s edge, not the parcel line (this matters on the Lagoon) .
Rear-yard baselines (apply to all zones): 20 ft when abutting another lot; 15 ft when abutting a street (except R-1C is 10 ft); 10 ft when abutting water, alley, or private way (except R-1L rear on water is 15 ft) .
Lot coverage methodology: Counts all covered structures; excludes specific uncovered items (with nuances for decks and parking). In residential zones, covered parking is included in coverage totals .
Height measuring methods: District-specific caps apply; average height is calculated per “Emmons’ Law” by a weighted average of wall heights around the perimeter. In R-1W, height is measured from the top of curb at street frontage; in R-1L and R-2, FEMA “substantial improvement” can change the datum to Base Flood Elevation (BFE) + 1 ft of freeboard .

District-by-district standards

R-15 — Single-Family Residential (R-15)

Purpose/uses: Single-family residential; verify specific permitted/conditional uses with the City. Not found in retrieved materials.
Where it applies: Where the zoning map designates R-15. Verify with the jurisdiction.
Key dimensional standards:
- Front setback: 15 ft; may reduce to 10 ft if the structure is ≤15 ft tall within the first 40 ft of lot depth near the street .
- Side setback: 10 ft or 10% of average lot width, whichever is less, but not less than 5 ft .
- Rear setback: Citywide baselines apply (see above) .
- Height: 28 ft max in “all other residential zones,” with a hillside exception up to 36 ft on lots averaging ≥30% slope, subject to additional conditions; average height must not exceed 28 ft under that exception .
- Lot coverage: 30% covered; total with decks ≤50% .
- FAR: 0.33, capped at 4,850 sf total floor area .

R-1C — Single-Family Residential, Corinthian Island (R-1C)

Purpose/uses: Single-family residential; verify with the City. Not found in retrieved materials.
Where it applies: Corinthian Island (explicitly referenced in the code) .
Key dimensional standards:
- Front setback: Either at the street line or 5 ft from the improved street line, whichever is farther from the street centerline .
- Side setback: 5 ft .
- Rear setback: Citywide baselines, with 10 ft minimum where the rear abuts a street in R‑1C .
- Height: 28 ft max baseline; hillside exception up to 36 ft on ≥30% average slope with conditions .
- Lot coverage: 40% covered; total with decks ≤50% .
- FAR: 0.50, cap 3,500 sf .

R-1L — Single-Family Residential, Lagoon (R-1L)

Purpose/uses: Single-family residential; verify with the City. Not found in retrieved materials.
Where it applies: Lagoon-side neighborhoods designated R‑1L; setbacks from water measured from summer-level high tide edge .
Key dimensional standards:
- Front setback: Variable by height within first 40 ft of depth: 15 ft normally; 10 ft if ≤25 ft tall; 5 ft if ≤15 ft tall near the front 40 ft .
- Side setback: 5 ft at the first story; 10 ft at the second story level .
- Rear setback: Citywide baselines, but rear on water is 15 ft in R‑1L .
- Height: 22 ft max, with a bonus up to 26 ft if you add an extra foot of second‑story side yard setback per foot of height bonus; if a FEMA “substantial improvement,” height is measured to BFE +1 ft freeboard; never above 29 ft from existing grade .
- Lot coverage: 40% covered; 50% covered allowed if the building does not exceed 15 ft tall; total with decks ≤50% unless using the 15‑ft exception .
- FAR: 0.50, cap 4,000 sf .

R-1W — Single-Family Residential (R-1W)

Purpose/uses: Single-family residential; verify with the City. Not found in retrieved materials.
Where it applies: Where mapped as R‑1W; height is measured from the curb due to terrain conditions .
Key dimensional standards:
- Front setback: Variable by height within first 40 ft of depth (same framework as “all other residential zones”) .
- Side setback: 5 ft first story; 10 ft second story .
- Rear setback: Citywide baselines apply .
- Height: 22 ft max, with a bonus up to 26 ft with extra second‑story side yard setback; height measured from top of curb along the frontage (not grade) .
- Lot coverage: 40% covered; total with decks ≤50% .
- FAR: 0.40, cap 4,240 sf .

R-2 — Duplex Residential (R-2)

Purpose/uses: Duplex/multifamily form with R‑2 standards; the chapter heading identifies “Duplex Residential Zone.” Verify full permitted/conditional uses with the City. Not found in retrieved materials; chapter title cited .
Where it applies: Where mapped R‑2.
Key dimensional standards:
- Minimum lot: 6,000 sf, 60 ft average width and frontage; density range 5–20 du/net acre per General Plan designation .
- Front and side setbacks within first 40 ft vary by building height: 5/10/15 ft tiers for ≤15 ft, 16–25 ft, and >25 ft heights; side yards use the same tiering; see code chart for specifics .
- Rear setback: 20 ft abutting a lot; 15 ft abutting a street; 10 ft abutting water/alley/private way (citywide baselines) .
- Height: 22 ft max with bonus to 26 ft via added second‑story side yard; FEMA “substantial improvement” may require using BFE +1 ft datum; never above 29 ft from existing grade .
- Lot coverage: 50% on lots adjacent to open water (excluding uncovered decks); 40% otherwise; total coverage ≤60% .
- Usable open space: 300 sf private per unit, with specific substitution options for common space in lieu of private .

R-3 — Multifamily Residential (R-3)

Purpose/uses: Multifamily residential; prohibited uses include hotels, boarding/rooming houses, motor courts, and roof decks unless otherwise provided .
Where it applies: Where mapped R‑3; incentives may apply along Beach Road under certain conditions.
Key dimensional standards:
- Minimum lot: 6,000 sf, 60 ft average width and frontage; density range 5–20 du/net acre subject to General Plan designation .
- Setbacks: Front and side step up with height; e.g., within the first 40 ft of depth from the front, 5/10/15 ft tiers at ≤15 ft, <25 ft, and >25 ft heights respectively; side yards mirror those tiers; rear yards follow citywide baselines with special 20 ft where abutting water noted in the table for R‑3 .
- Height: Up to 34 ft measured to BFE +1 ft and 36 ft from existing grade; up to 38 ft if the project consolidates parcels to ≥0.5 acre and ≥20% of new units are affordable, with additional standards (applies on Beach Road frontage) .
- Lot coverage: 40% for structures (can increase to 50% adjacent to open water and/or adjacent to commercial zoning), total coverage ≤60% .
- Usable open space: 200 sf private per unit (dimensioned criteria) with allowed substitution of common open space per formula .
- Additional R‑3 incentives when consolidating to ≥0.5 acre and providing ≥20% low‑income units: density 20–28 du/ac, reduced parking, reduced open space, and increased coverage/height limits as specified .
- Design review: All new structures and exterior work in R‑3 require design review under Title 20 .

MU — Mixed Use (MU)

Purpose/uses: Vertical or horizontal mixed residential/nonresidential; residential must be at least half of total floor area in a mixed-use project. Standards below supersede Title 22 unless ministerial streamlining is elected per state law references in the code .
Where it applies: Where mapped MU (e.g., along Tiburon Boulevard/Belvedere boundary; verify property-specific mapping).
Key dimensional standards (Table 19.41‑A):
- Site: Minimum area 10,000 sf; minimum width 60 ft; residential density 30–35 du/net acre; maximum FAR 1.75; minimum landscape coverage 15% .
- Height: Up to 45 ft and 3 stories, with mandatory stepbacks above 30 ft on street-facing elevations .
- Setbacks: Front 10 ft; street side 5 ft; interior side 5 ft (or 10 ft if adjacent to a Residential zone); rear 20/15/10 ft depending on adjacency; 20 ft garage/carport street-facing setback; special note that setbacks don’t apply to property lines along the Tiburon/Belvedere boundary between commonly controlled parcels .
- Building separations: 15 ft minimum; usable open space 400 sf per unit (≥200 sf private); parking 1 space/unit allowed as common/shared; see parking for citywide parking provisions .
- Projections into setbacks: Limited allowances for arcades, awnings, eaves, etc. .

O — Open Space Scenic (O)

Purpose/uses: Scenic open space, wildlife habitat, gardens/paths; limited outdoor recreation with use permit .
Development standards: Setbacks, heights, and bulk are set case-by-case by the Planning Commission through the design review process in Title 20 .

R — Recreation (R)

Purpose/uses: Parks and recreation as permitted/conditioned in Chapter 19.20. Not found in retrieved materials for a complete list.
Development standards: The front setback in the R zone is defined by the specific use permit issued for the site; other quantitative standards not retrieved. Not found in retrieved materials .

SC‑H — Senior Citizen/Handicapped Overlay (applies only over R‑3)

Purpose: Enable senior/handicapped housing by allowing parking and density waivers with a special use permit; overlay may be used instead of underlying R‑3 standards when authorized .
Where it applies: Only on land also classified R‑3 .
Development standards: Height, lot coverage, setbacks, and lot area per unit are not fixed by table; they are determined by the Planning Commission when granting the special use permit based on specified factors (surrounding density, fire access, BMR feasibility, amenities, etc.) .

Quick-reference: Single-family districts (setbacks, height, coverage, FAR)

District	Front setback	Side setback	Rear setback	Max height (notes)	Lot coverage (covered/total)	FAR cap	Code Reference
R-15	15 ft; 10 ft if ≤15 ft tall within first 40 ft	10 ft or 10% avg width, min 5 ft	20/15/10 ft baselines	28 ft; hillside exception up to 36 ft with conditions	30% / 50%	0.33; 4,850 sf max	19.48.040; 19.48.120; 19.48.170; 19.56.050; 19.56.070; 19.52.030; 19.52.115
R-1C	Street line or 5 ft from improved street line (farthest)	5 ft	20/10/10 ft (10 ft rear on street)	28 ft; hillside exception up to 36 ft with conditions	40% / 50%	0.50; 3,500 sf max	19.48.050; 19.48.130; 19.48.170; 19.56.050; 19.56.070; 19.52.040; 19.52.100
R-1L	Variable 15/10/5 ft by height within first 40 ft	5 ft first story; 10 ft second story	Rear on water 15 ft	22 ft; bonus to 26 ft with extra 2nd-story side yard; FEMA/BFE datum may apply; never above 29 ft	40% / 50% (50% covered allowed if height ≤15 ft)	0.50; 4,000 sf max	19.48.060; 19.48.140; 19.48.170; 19.56.040; 19.56.080; 19.52.040; 19.52.050; 19.52.110
R-1W	Variable 15/10/5 ft by height within first 40 ft	5 ft first story; 10 ft second story	20/15/10 ft baselines	22 ft; bonus to 26 ft; height measured from top of curb	40% / 50%	0.40; 4,240 sf max	19.48.060; 19.48.140; 19.48.170; 19.56.030; 19.56.060; 19.56.100; 19.52.040; 19.52.105

Notes:

In R‑1L, when a rear/side property line is in the water, measure setbacks from the summer-level high-tide water’s edge .
The front setback may be reduced by 5 ft where the improved curbline is ≥10 ft from the front property line (applies citywide) .

R-2/R-3/MU decision points at a glance

R‑2: Minimum lot 6,000 sf, density 5–20 du/ac, tiered 5/10/15 ft setback regime by building height within the first 40 ft from the front; 22 ft max height with conditional bonus; coverage 40% (or 50% on open water) with total ≤60%; private open space 300 sf/unit with substitution rules .
R‑3: Minimum lot 6,000 sf, density 5–20 du/ac; tiered front/side setbacks by height; up to 34/36 ft height with BFE datum; coverage 40–50% (context‑dependent) with total ≤60%; private open space 200 sf/unit; Beach Road incentive projects (≥0.5 ac with ≥20% low‑income) may reach 38 ft, 20–28 du/ac, reduced parking/open space, and 45% coverage caps per subsection A .
MU: Density 30–35 du/ac, max FAR 1.75, up to 45 ft/3 stories with stepbacks; front 10 ft and side/rear per Table 19.41‑A; open space 400 sf/unit (≥200 sf private); 1 space/unit; projections allowed per 19.41.060 .

Related processes and cross-references

Most projects needing exterior work will trigger design review under Title 20; R‑3 explicitly references it .
If your site has a legal nonconforming floor area in R‑1 or R‑15, a special “existing floor area” baseline may apply, with conditions on massing, volume, and privacy; see exemptions in floor area rules .
Floor area exceptions are possible case-by-case when findings are met; if you need broader relief on setbacks or height, see Variances and Exceptions and 19.52.120 for FAR exceptions .
For accessory and junior units, standards live in the city’s ADU chapter; see Belvedere ADUs. Development standards for ADUs can differ from base-zone rules; exceptions process is also specified in the ADU chapter .
For overlay provisions (like SC‑H) and any mapped hazard/overlay that may affect standards, see Belvedere Overlay Districts.

Checklist

Identify your base zone and any overlays on the parcel, including SC‑H or special waterfront situations (verify zoning map).
Confirm lot dimensions (area, average width, frontage) and whether substandard-lot rules apply .
Apply the correct front, side, and rear setbacks for your district and context (water/streets/alleys) and special measurement from water in R‑1L .
Determine height limits and the correct measurement datum (existing grade vs. BFE + 1 ft; curb in R‑1W), and whether any hillside/bonus provisions apply .
Calculate lot coverage per your zone, applying the exclusions for uncovered elements and the special R‑1L 15‑ft‑tall coverage allowance if applicable .
Check FAR limit and absolute floor-area caps for R‑1C, R‑1W, R‑1L, and R‑15; consider whether a floor area exception is justifiable .
In R‑2/R‑3, confirm density, usable open space per unit, and any Beach Road or parcel-consolidation incentives; confirm parking per zone and citywide parking rules .
For MU projects, confirm Table 19.41‑A standards for density, FAR, setbacks, stepbacks, and open space; check allowable projections into setbacks .
Plan for design review and coordinate with any outside bodies (e.g., BLPOA for Lagoon bulkheads/docks) where required in R‑1L .

Risks & Ambiguities

Issue	Why it matters	What to verify
Waterfront measurement in R‑1L	Setbacks are measured from the water’s edge, not property line; can shift buildable area	Confirm summer-level high-tide line location and survey basis; see 19.48.010(D)
Variable front setbacks	The 5/10/15 ft tiers depend on building height near the street	Model height within the first 40 ft; confirm which tier applies in your design; see 19.48.040–.060
Height datum (grade vs. BFE vs. curb)	Using the wrong datum can add/subtract feet	Determine FEMA “substantial improvement” status and whether R‑1W curb datum applies; see 19.56.040, 19.56.080, 19.56.100
Hillside height exception in R‑15/R‑1C	Allows up to 36 ft, but with strict conditions	Average slope method, 40‑ft bands near streets, and average height cap; see 19.56.070
R‑3 Beach Road incentives	Different height/coverage/parking/open-space metrics	Confirm parcel consolidation acreage and affordability mix; see 19.36.040(A)
Existing nonconforming floor area	May alter the FAR “baseline” in R‑1/R‑15	Whether exemption B in 19.52.090 applies and volume/privacy constraints; see 19.52.090(B)
MU setback “shared-boundary” note	Setbacks modified where contiguous properties under common ownership cross the Belvedere/Tiburon line	Apply Table 19.41‑A note [6] correctly; see 19.41.050/Table 19.41‑A
O and R zones, case-by-case standards	No fixed tables; standards set through permits	Confirm permit conditions and Title 20 criteria early; see 19.16.050; 19.48.080

Plain-English Summary

Belvedere sets hard numbers for how big and how tall you can build, and how far you must stay back from property lines and water. The numbers change by zone: single-family zones have specific FAR caps and front/side/rear setbacks; Lagoon and West Shore zones have special height rules; R‑2 and R‑3 regulate density, setbacks-by-height, coverage, and open space per unit; and the MU zone fixes density, FAR, stepbacks and parking for mixed-use housing. Check your map designation, then apply the right setbacks, height datum (grade, curb, or FEMA), lot coverage and FAR—and plan on design review.

Source References

Title 19 Zoning, yards/setbacks and measurement: 19.48.010–.190; 19.44.050–.070
Single-family height limits/exceptions: 19.56.030–.080, .090, .100
Lot coverage and FAR (residential): 19.52.010–.115, .120 exceptions
R‑2/R‑3 standards and design: 19.28.040–.050; 19.36.030–.050; 19.52.140 (open space)
R‑3 incentives (Beach Road/parcel consolidation/affordable): 19.36.040(A)
MU Mixed Use standards and design allowances: 19.41.050–.060; Table 19.41‑A
O Open Space Scenic and R Recreation: 19.16.010–.050; 19.48.080
SC‑H Senior/Handicapped overlay: 19.37.010–.100 (PC‑set standards; parking/density waivers)

Sources

Retrieved passages

Belvedere Zoning Code (§ 1) High relevance
Belvedere Zoning Code (Title 19) High relevance
CBC § 65589.5 (Section 65589.5.) High relevance
Belvedere Zoning Code (§ 8) High relevance
Belvedere Zoning Code (Title 19) High relevance
Belvedere Zoning Code (Section 19.08.240) High relevance
Belvedere Zoning Code (Section 19.41.070) High relevance
Belvedere Zoning Code (Chapter 2.7) High relevance
Belvedere Zoning Code (Title 19) High relevance
Belvedere Zoning Code (Chapter 19.56) High relevance
Belvedere Zoning Code (Title 19) High relevance
Belvedere Zoning Code (Section 19.08.224.) High relevance
Belvedere Zoning Code (§ 8) High relevance
Belvedere Zoning Code (Title 19) High relevance

Cited sections

Official Belvedere code library

Frequently asked questions

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

Detached single-family homes are the core use in the R‑1 variants; the exact dimensional limits depend on whether you are in R‑1C, R‑1L, R‑1W, or R‑15. Check your zone, then apply its front/side/rear setbacks, height cap (including any FEMA/curb/slope rules), lot coverage, and FAR from Chapters 19.48, 19.56, and 19.52. For example, R‑1L is 22 ft max with a bonus to 26 ft, setbacks from the water’s edge, and 0.50 FAR up to 4,000 sf .

What are Belvedere’s front setback rules for homes?

In most residential zones, the front setback is 15 ft, but it can drop to 10 ft if the building is ≤25 ft tall within the first 40 ft from the street, and to 5 ft if ≤15 ft in that same band. R‑1C is different: the line is at the street or 5 ft from the improved street line—whichever is farther from centerline. If the curb is ≥10 ft from your front property line, subtract 5 ft from the required setback .

How tall can a house be on the Lagoon (R-1L) or West Shore (R-1W)?

Both R‑1L and R‑1W have a base max of 22 ft with a potential bonus to 26 ft by increasing the average second‑story side setback. In R‑1W, height is measured from the top of curb; in R‑1L (and R‑2), a FEMA “substantial improvement” shifts the datum to BFE + 1 ft; in no event above 29 ft from existing grade .

What is Belvedere’s FAR limit for single-family properties?

FAR caps vary: R‑1C 0.50 (max 3,500 sf), R‑1W 0.40 (max 4,240 sf), R‑1L 0.50 (max 4,000 sf), R‑15 0.33 (max 4,850 sf). Floor‑area exceptions may be granted if strict findings are met, and an “existing floor area” exemption may apply on R‑1/R‑15 lots already improved with conforming or legal nonconforming structures .

How does density work in the R-2 and R-3 zones?

Both R‑2 and R‑3 show a base density range of 5–20 units per net acre (as guided by the General Plan). R‑3 includes an incentive program: on consolidated sites ≥0.5 acre with ≥20% low‑income units, density is 20–28 units per net acre, with modified parking, open space, coverage, and up to 38 ft height on Beach Road .

What open space is required for multifamily?

In R‑3, provide at least 200 sf private usable open space per unit (with dimensional minimums and allowances to substitute common space). In R‑2, provide 300 sf private usable open space per unit, with similar substitution rules .

What are the mixed-use (MU) standards I should know first?

MU projects must meet 30–35 du/ac, max FAR 1.75, up to 45 ft/3 stories with stepbacks above 30 ft, front 10 ft setbacks, 1 space per unit, and 400 sf/unit usable open space (at least 200 sf private). Residential must be at least 50% of total floor area in a mixed-use development .

Do I always need design review?

Yes—new structures and most exterior work undergo design review under Title 20; the R‑3 chapter explicitly states this, and single‑family projects also require it before permits per Title 20 cross-references .

How do setbacks work next to water or alleys?

Rear yards citywide are 20 ft (lot), 15 ft (street), 10 ft (water/alley/private way), with exceptions: R‑1C rear on street is 10 ft, and R‑1L rear on water is 15 ft. In R‑1L, measure side/rear setbacks from the summer-level high-tide water edge, not the deed line .

What if my lot is smaller than the standard minimum?

Construction on substandard lots is restricted unless the lot met minimums when legally created or shown on a recorded map/deed under earlier zoning standards; check 19.44.070 and coordinate with Variances and Exceptions if relief is needed .

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