Local zoning · Santa Barbara

Santa Barbara — Development Standards

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

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Last reviewed: July 2, 2026

Overview

This page summarizes Santa Barbara's zoning development standards (setbacks, height, lot coverage, density/FAR and related controls) as found in the City's municipal zoning code (Title 28). It focuses on what the ordinance requires — not building-code (Title 24) compliance or state housing law — and highlights the common review triggers (design review, parking, overlays). For related processes see the city's zoning guide and the city's rules for parking, design review, overlay districts, and ADUs.

Key citations in the text are the controlling code sections (format: § 28.xxx) and the underlying file search references from the municipal code excerpts provided. Verify parcel-specific results with the Community Development Department.

How to read this page

  • Bold indicates the legal terms and numeric standards to scan quickly (for example, R-1, 15 ft, § 28.15.060).
  • The first natural mention of each process/topic is linked to the internal menu pages listed above.
  • Every requirement below is tied to the Santa Barbara zoning code by section (§) and an uploaded-code citation.

R-1 — One-Family Residence Zone

Purpose & typical uses

  • The R-1 zone is the single-family residential zone; intended primarily for one-family dwellings and related accessory uses. See the zone chapter introductory language at § 28.15.001.

Key dimensional standards (decision-relevant)

  • Front setback: ground floor 15 ft, upper-story 20 ft; garage setbacks vary by orientation (15 ft or 20 ft) — § 28.15.060.
  • Interior (side) setback: 5 ft minimum — § 28.15.060.
  • Height: up to 30 ft unless otherwise limited by solar-access provisions in § 28.11.020 — § 28.15.050 and § 28.11.020.
  • Open yard: minimum open yard and dimension rules apply (e.g., minimum 1,250 sq ft area or configured alternatives where slope applies) — § 28.15.060.
  • Net floor area (FAR-like control): maximum net floor area on a lot is calculated by formula and limits additions/second-story changes under certain conditions — see § 28.15.083 (net floor area formula and preclusion rules).

Where it applies

  • Typical single-family neighborhoods citywide; consult the Official Zoning Map in Chapter 28.12 to confirm a parcel’s base zone.

Practical guidance

  • For most R‑1 remodels, compute net floor area per § 28.15.083 before planning new second‑story area; projects that would exceed the formula thresholds trigger prohibitions or need modification/variance.

R-2 — Two-Family Residence Zone

Purpose & typical uses

  • The R-2 zone permits one- and two-family dwellings and uses allowed in R-1 with some restrictions; designed for medium-density residential character — § 28.18.010–020.

Key dimensional standards

  • Front setback: ground floor 15 ft; upper story 20 ft; garages 15/20 ft depending on orientation — § 28.18.060.A.
  • Interior setback: 6 ft for buildings (parking 3 ft) — § 28.18.060.B.
  • Height: maximum 30 ft and subject to solar access height rules in § 28.11 — § 28.18.050.
  • Open yard / private outdoor living space: required; details at § 28.18.060.C.

Where it applies

  • Duplex/two-unit lots and select medium-density neighborhoods.

Practical guidance

  • R‑2 projects commonly require explicit calculation of open yard and setbacks; accessory parking standards refer to the city parking chapter — see parking.

R-3 / R-4 — Multiple-Family / Limited Multiple-Family Zones

Purpose & typical uses

  • R-3 and R-4 zones permit multi-family housing; development standards balance density with open space and setbacks (see Chapter 28.21).

Key dimensional standards

  • Height: up to 3 stories / 45 ft (combined, not to exceed 45 ft); adjacent portions near residential zones may be restricted to the more limiting adjacent residential height — § 28.21.050.
  • Front setback: one/two‑story 10 ft; three‑story 15 ft (with nuanced third‑floor reductions tied to relative floor area) — § 28.21.060.A.
  • Interior / rear setbacks: general 6 ft (one/two‑story) and 10 ft (three‑story) rules; rear and garage setbacks also specified — § 28.21.060.B–C.
  • Distance between buildings: generally 15 ft minimum; special exceptions and reductions exist — § 28.21.070.

Where it applies

  • Higher-density residential corridors, multifamily complexes, and where the General Plan allows multi‑unit housing.

Practical guidance

  • Multi‑family projects are often subject to design review and must demonstrate compliance with open yard and distance-between-building rules early in design to avoid costly redesign.

HRC — Harbor-Related Commercial Zones (HRC / HRC-2)

Purpose & typical uses

  • HRC zones (Harbor Commercial) govern visitor- and harbor-related commercial uses; residential uses are restricted in many HRC areas — see Chapter 28.22.

Key dimensional standards

  • Height: generally 3 stories / 45 ft — § 28.22.050.
  • Setbacks: front setback 10 ft (one-story ≤15 ft tall) or 20 ft (other buildings); interior setbacks adjacent to residential require 10 ft or one-half the building height — § 28.22.060.

Where it applies

  • Harbor district (downtown/coast-adjacent parcels and special plan areas).

Practical guidance

  • Projects adjacent to residential zones must respect interior setback limitations and Coastal Overlay review where applicable — see overlay districts.

R-O — Residential Office Zone

Purpose & typical uses

  • R‑O allows office and limited commercial uses compatible with residential character (Chapter 28.48).

Key dimensional standards

  • Height: up to 3 stories / 45 ft, with adjacency protections for residential zones — § 28.48.050.
  • Setbacks: front setbacks: one/two story 10 ft, three‑story 15 ft (third-floor complexities described); interior setbacks depend on adjacency type — § 28.48.060.

Practical guidance

  • Mixed residential/office projects must examine interior-setback and parking rules carefully; nonresidential uses often trigger doubled setback rules (see Nonresidential standards below).

P-D / PUD — Planned Development / Planned Unit Development

Purpose & typical uses

  • P‑D / PUD offers flexible, site‑specific development standards in exchange for open space, design quality and public benefits; developers must submit a development plan and often a conditional use permit — Chapter 28.36.

Key dimensional standards

  • Setbacks: PUD front setbacks are typically at least twice the base zone front setback; interior setback often 40 ft unless otherwise provided — § 28.36.075.
  • Height & density: PUD establishes maximum density in dwelling units per acre and limits building height (e.g., no vertical section greater than 35 ft for hillside PUDs) — § 28.36.050.

Where it applies

  • Large sites, hillside development or projects where City seeks tailored design solutions.

Practical guidance

  • Expect a development plan review, Planning Commission findings, and possibly higher submittal requirements (landscape, grading, open space).

Nonresidential / Commercial — Development Standards (general)

  • Nonresidential buildings must generally provide double the residential setback applicable in the base zone (see § 28.15.085 and § 28.21.085), and lot coverage limitations (e.g., 25% for nonresidential net lot area) apply — § 28.15.085.B, § 28.21.085.B.
  • Architectural approval/design review is typically required for nonresidential projects (Architectural Board of Review or Historic Landmarks Commission if in a landmark district) — § 28.15.085.C, § 28.21.085.C.

Net Floor Area (Floor-to-Lot Area Ratio) rules

  • Santa Barbara computes a Net Floor Area and caps maximum net floor area by a table/formula; baselines and exclusions (basements/cellars, carports, ADUs, etc.) are defined in the ordinance — see § 28.15.083 for the formula and definitions (net lot area, net floor area, basement rules, ADU inclusion) and related application limits for second-story or height increases — § 28.15.083 (C–D).
  • Example table excerpt: for lots 4,000–9,999 sq ft, maximum net floor area = 1,200 + 0.25 × net lot area — § 28.15.083.C.

Practical guidance

  • Always calculate net floor area early. Projects that would exceed the maximum or certain percent triggers additional findings or prohibition on second‑story/height increases (precluded development rules). Modifications to net floor area rules can be sought under the Planning Commission modification provisions but require design-board support per § 28.92.110 and § 28.15.083 references.

Quick Standards Table

District Typical Uses (short) Max Height Front Setback (typical) Interior Setback (typical) FAR / Lot rules Code Reference
R-1 Single-family homes 30 ft (see solar/§28.11) 15 ft ground / 20 ft upper — § 28.15.060 5 ft — § 28.15.060 Net floor area formula limits — § 28.15.083 § 28.15.050; § 28.15.060; § 28.15.083
R-2 One- & two-family 30 ft 15 ft / 20 ft (upper) — § 28.18.060.A 6 ft (buildings) / 3 ft (parking) — § 28.18.060.B Open yard & private outdoor living rules — § 28.18.060.C § 28.18.050; § 28.18.060
R-3 / R-4 Multi-family 3 stories / 45 ft 10 ft (1–2 story) / 15 ft (3-story) — § 28.21.060 6 ft / 10 ft (3-story) — § 28.21.060 Lot area rules; distance-between-buildings 15 ft — § 28.21.070 § 28.21.050–070
HRC Harbor/visitor commercial 3 stories / 45 ft 10–20 ft depending on story — § 28.22.060 Adjacent to residential: 10 ft or ½ height — § 28.22.060 Nonresidential controls & development plan triggers apply § 28.22.050–060

(See the cited sections for full nuance and exceptions; table is a summary.)

Checklist

  • Confirm base zone on the Official Zoning Map (Chapter 28.12) and note any overlay zones. Verify with the Community Development Department.
  • Measure lot net area and compute Net Floor Area per § 28.15.083 before sizing additions or second stories.
  • Confirm front, interior, rear setbacks and open yard requirements for the base zone (e.g., § 28.15.060, § 28.18.060, § 28.21.060).
  • Confirm maximum permitted height and solar-access limits (Chapter 28.11; see § 28.11.020).
  • Review nonresidential setback/lot coverage rules if the use is commercial or mixed (double setback rule — § 28.15.085/§ 28.21.085).
  • Identify whether the project requires design or historic review (Title 22) and gather necessary plans for the Architectural Board of Review or Historic Landmarks Commission — see design review.
  • Determine required off‑street parking and loading (Chapter 28.90) and related setbacks — see parking.
  • If an overlay applies (Coastal, Hillside, Priority Housing/AUSD), confirm overlay-specific standards and review authority — see overlay districts and Chapter 28.44 (Coastal).
  • If proposing an ADU, verify both local ADU inclusion in net floor area rules and state ADU rules; see ADUs and the ADU guidance in the uploaded handbook.

Risks & Ambiguities

Issue Why it matters What to verify
Net floor area math / exclusions Net floor area determines whether second-story or additions are precluded — calculations have exclusions (basement, carport, ADU) and threshold triggers in § 28.15.083. Recompute net floor area per § 28.15.083 and confirm whether your project would exceed the table or the 85% trigger; consult the Community Development Director if borderline.
Hillside / slope rules Lots with average slope ≥ 30% or in Hillside Design District face stricter triggers for height/floor area increases (preclusions in § 28.15.083.D). Verify lot slope per § 28.15.080 and whether the lot lies in the Hillside Design District (§ 22.68.060). Verify grading volumes.
Overlay reviews (Coastal, S‑D‑3, etc.) Overlays can add mandatory Coastal or special findings and change reviewing body (Staff Hearing Officer vs Planning Commission) — see § 28.44 and overlay chapters. Identify overlay(s) on the parcel, read the overlay chapter, and confirm the review body and required findings.
Historic district constraints Projects within El Pueblo Viejo or other landmark districts go to the Historic Landmarks Commission and face different design/language constraints. Check historic district status early; projects may require HLC review and extra findings under Title 22.
Variances / modifications needed Many standards allow Planning Commission or Staff Hearing Officer modifications (e.g., setbacks, net floor area) but require findings and sometimes design-board support — § 28.92.110. If nonconforming, prepare findings and obtain required support (e.g., Single Family Design Board votes) before relying on a Commission modification.

Plain-English Summary

Santa Barbara's zoning code sets zone‑by‑zone rules for how tall, how close to property lines, and how much floor area you can build. Single‑family (R‑1) lots generally require about 15 ft front setbacks, 5 ft side setbacks and follow a net‑floor‑area cap; two‑family (R‑2) and multi‑family (R‑3/R‑4) have tighter rules on stories, setbacks and required open yards. Projects that increase second‑story area, sit in overlays (Coastal/Hillside), or are nonresidential commonly trigger design review and additional findings — always compute net floor area and check the applicable § in the code first.

Source References

  • Santa Barbara Municipal Code — Chapter 28.15 (A-1, A-2, E, R-1 zones; setbacks/open yard; net floor area rules), see § 28.15.050 and § 28.15.060 and § 28.15.083.
  • Santa Barbara Municipal Code — Chapter 28.18 (R-2 Two-Family Residence Zone), § 28.18.050–060 (height, setbacks, open yard).
  • Santa Barbara Municipal Code — Chapter 28.21 (R-3/R-4 Multiple-Family Zones), § 28.21.050–070 (height, setbacks, distance between buildings).
  • Santa Barbara Municipal Code — Chapter 28.22 (HRC zones), § 28.22.050–060 (height and setbacks).
  • Santa Barbara Municipal Code — Chapters 28.36 / 28.39 / 28.48 (PUD / P‑D / R‑O zones) — development-plan and PUD setbacks/density rules.
  • Santa Barbara Municipal Code — Nonresidential standards (double setbacks; lot coverage caps) § 28.15.085, § 28.21.085.
  • Santa Barbara Municipal Code — Modifications and Variances (Planning Commission modification authority, net floor area modification process) § 28.92.110 and related references.
  • Santa Barbara ADU guidance (uploaded handbook) — state ADU rules summarized (for interaction with local limits).

(For the authoritative, parcel‑specific application of these standards consult the City of Santa Barbara's official code and the Community Development Department. Verify with the jurisdiction on ambiguous or site-specific matters.)

Sources

Retrieved passages

  • Santa Barbara Zoning Code (section and) High relevance
  • Santa Barbara Zoning Code (§ 28.27.050.) High relevance
  • Santa Barbara Zoning Code (Chapter 28.36.) High relevance
  • Santa Barbara Zoning Code (§3) High relevance
  • Santa Barbara Zoning Code (§ 28.75.060.) High relevance
  • Santa Barbara Zoning Code (title shall) High relevance
  • Santa Barbara Zoning Code (§ 28.22.050.) High relevance
  • Santa Barbara Zoning Code (§ 28.30.032.) High relevance
  • Santa Barbara Zoning Code (§ 28.63.050.) High relevance
  • Santa Barbara Zoning Code (§ 28.18.020.) High relevance
  • Santa Barbara Zoning Code (§ 28.36.075.) High relevance
  • Santa Barbara Zoning Code (§ 28.92.110.) High relevance
  • Santa Barbara Zoning Code (§2) High relevance
  • Santa Barbara Zoning Code (§3) High relevance
  • Santa Barbara Zoning Code (§ 28.46.070.) High relevance
  • Santa Barbara Zoning Code (§ 28.21.035.) High relevance
  • CBC § 66321 (§ 66321) High relevance
  • Santa Barbara Zoning Code (§ 28.51.050.) High relevance
  • Santa Barbara Zoning Code (section and) High relevance

Cited sections

Frequently asked questions

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

On an R‑1 lot you may build a one‑family dwelling and accessory structures subject to the zone’s setbacks, open‑yard and height limits (typically 15 ft front setback ground floor, 5 ft side setbacks, 30 ft general height limit) and net floor area caps; see § 28.15.060 and § 28.15.050 and the net floor area rules in § 28.15.083.

What are Santa Barbara setback requirements for single-family homes?

Setbacks for single‑family zones (A, E and R‑1) are set in § 28.15.060: typical R‑1 front setback is 15 ft for ground floor and 20 ft for upper stories; interior (side) setback is 5 ft. Confirm exceptions and reductions in other chapters.

How does Santa Barbara limit building height?

Base residential height is generally 30 ft in one‑family zones (subject to solar‑access rules in § 28.11.020) and 45 ft (three stories) in many multi‑family and commercial zones; check the zone’s height clause (e.g., § 28.15.050, § 28.21.050, § 28.22.050).

How is lot coverage / net floor area (FAR) calculated in Santa Barbara?

The code uses a Net Floor Area calculation (defined in § 28.15.083 and related text) with a formula/table setting maximum net floor area by net lot area (for example, for 4,000–9,999 sq ft lots: 1,200 + 0.25 × net lot area). Basements/cellars, some carports and other items have specific rules; see § 28.15.083.C and definitions.

Do nonresidential projects have different setbacks or lot coverage rules?

Yes. Nonresidential buildings often require double the residential setback for the underlying zone and have separate lot coverage limits (e.g., 25% net lot area for nonresidential) and mandatory architectural review — see § 28.15.085 and § 28.21.085.

Do I need design review for my Santa Barbara project?

Many residential and all nonresidential projects are subject to design review under Title 22; single‑family remodels and certain new dwellings require review by the Single Family Design Board, ABR, or Historic Landmarks Commission depending on location and district — see § 28.15.055 and Title 22 (design review references).

How do overlays (like Coastal or Hillside) change development standards?

Overlay zones add specific review triggers and standards (e.g., Coastal Overlay S‑D‑3 triggers Chapter 28.44 review; Hillside Design District invokes additional slope/ grading/height constraints). Always check overlay chapters; overlay presence can change the review body and require Coastal or environmental findings.

If a lot fails the net floor area test, can I get an exception?

Potentially — modifications for setbacks, floor area, and related standards may be granted by the Planning Commission or Staff Hearing Officer per § 28.92.110, but net-floor‑area modifications commonly require supporting votes from design boards and demonstrated lot uniqueness under § 28.15.083 procedures. Verify required findings and support thresholds.

Where do ADUs fit in these standards?

Accessory dwelling units are included in net floor area calculations under the local code (see § 28.15.083) but state ADU law also constrains local standards; consult the local ADU chapter and state guidance — see ADUs and the uploaded ADU handbook for state/local interaction.

Who reviews Coastal-area development and accessory dwellings?

Coastal overlay applications follow Chapter 28.44: some minor ADU applications may be handled by the Staff Hearing Officer (non‑appealable area rules apply) while other projects require Planning Commission or Coastal Commission review depending on location and discretion — see § 28.44. for details.

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