Local zoning · San Juan Bautista

San Juan Bautista — Development Standards

Q: What are the ADU setback, height, and coverage rules?

Local ADU provisions in Chapter 11‑04.5 allow ADUs with minimum 4 ft side/rear setbacks (state law minimum), a common 16 ft height cap for detached ADUs (with some exceptions), and parcel‑coverage or rear‑yard coverage rules (e.g., ADU rear yard in R‑1 limited to 40% or at least 850 sf ) — 11‑04.5 contains the controlling local references. Verify state/local interplay for any exception. file

Q: How is FAR applied in mixed‑use (MU) areas?

The ordinance notes a typical MU FAR of 0.75 , but for structures inside the downtown historic district the code notes FAR may be 1.5 (and FAR can be adjusted by discretionary use permits in some cases to achieve preservation or mixed‑use goals). Check the zoning table notes and the parcel’s overlay designation.

Development Standards under the San Juan Bautista local zoning and planning code, with the controlling citations.

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Last reviewed: July 3, 2026

Overview

This page summarizes the San Juan Bautista development standards that control setbacks, height, lot/site coverage, density, and floor area ratio (FAR) in the city's zoning code (Title 11—Zoning/Development Standards as adopted in the municipal code). It focuses only on what the local ordinance requires and how those rules differ by district; it does not cover building code/Title 24 matters or separate permitting steps. For a quick city-level entry point, see the San Juan Bautista — zoning & planning overview.

Citywide base rules (what applies generally)

Building coverage (single‑family lots): maximum 45% of lot area (calculated as enclosed floor area; roof overhangs and similar appendages excluded) — § 11-04-010(A).
Site coverage (single‑family lots): maximum 58% of lot area (includes accessory buildings, impermeable walkways, driveways, patios; permeable materials excluded) — § 11-04-010(B).
FAR definition: FAR = gross floor area divided by lot area; used where the code indicates (definition) — § 11-01 et seq., definitions; see the definition of Floor area ratio (FAR).
Required yards / setbacks: general rules on allowed encroachments (eaves, uncovered porches, decks, ramps) and measurement are in § 11-04-070; fences in residential zones limited to 3 ft in front yards and 6 ft side/rear unless otherwise specified.
Accessory structures and ADU standards: ADUs and accessory structures have their own separate dimensional rules (minimum 4 ft side/rear setbacks for ADUs, 16 ft height cap standard for detached ADUs, special parcel-coverage rules) — see Chapter 11-04.5 for ADU/JADU specifics. When discussing ADUs note local rules must also comply with State law; see the city's ADU guidance.

Link: local parking standards affect lot coverage and PUD lot design; see the San Juan Bautista — Parking page.

District-by-district breakdown

Below are the districts that the San Juan Bautista code treats explicitly in the development-standards chapters and the ordinance provisions that control their major dimensional limits. Where the code provides numerical standards we state them and cite the controlling §; where the code directs to a table or does not give a number in the retrieved materials we note that and advise verification.

Notes: the code often references a zoning standards table (SJBMC 11-03-010) for per‑district numbers. Where a numeric figure is present in Chapter 11-04 or in notes attached to the table, that figure is used below; otherwise the table is listed as the source to verify on a parcel-specific basis.

R-1 (Single‑family residential: R-1-7, R-1-6, R-1-5)

Purpose/typical uses: single‑family dwellings (the R‑1 district is explicitly subdivided into R-1-7, R-1-6, and R-1-5 based on minimum lot area — § 11-04-010(C)).
Key dimensional standards (local ordinance text):
- Maximum building coverage: 45% (single‑family) — § 11-04-010(A).
- Maximum site coverage: 58% — § 11-04-010(B).
- Minimum lot sizes: implied by R‑1 subtypes — R-1-7 = 7,000 sq ft; R-1-6 = 6,000 sq ft; R-1-5 = 5,000 sq ft — § 11-04-010(C).
- Front yard (subdivisions of 20+ lots): front setbacks vary from 15 ft to 25 ft; garage face at least 25 ft — § 11-04-010(D)(4).
- ADU rules: ADUs allowed; detached ADU height cap 16 ft (local standard, with some exceptions/permit pathways) and minimum side/rear setbacks 4 ft for ADUs (but see exceptions in code) — 11-04.5 (multiple subsections).
Where it applies: city residential neighborhoods; R‑1 lot-size designation is applied on zoning map (verify parcel zoning). Verify with the official zoning map. (See San Juan Bautista Zoning.)

R-2 and R-3 (Multifamily / higher-density residential)

Purpose/typical uses: multifamily dwellings, duplexes, small apartment buildings, with special common-open-space requirements for larger developments.
Key dimensional standards:
- For developments of five (5) or more units in R‑3, rental-unit availability and open-space minimums apply (e.g., 20% of new units must be available as rental units and 450 sf usable common open space per unit; reductions allowed with common open space) — § 11-04-010(D)(5).
- ADUs in R‑2/R‑3: ADU rear‑yard coverage may exceed FAR/building coverage by up to 25% subject to yards, height and setback rules — 11-04.5.
- Maximum building/site coverage and base FAR for R‑2/R‑3 are specified in the zoning standards table (SJBMC 11-03-010) — Not found in retrieved materials; verify with § 11-03-010 and the zoning table.

MU (Mixed‑Use)

Purpose/typical uses: mixed commercial/residential (e.g., downtown and transition areas). The code expressly allows mixed‑use and includes development rules to encourage vertical/horizontal mix.
Key dimensional standards:
- Base FAR for MU: 0.75 in most MU areas; downtown historic district structures may have FAR up to 1.5 per the notes/incentives in the code (FAR can be adjusted by discretionary approvals) — § 11-03 notes; see table notes.
- If a specific parcel (APN 002‑350‑002) is redeveloped as mixed use, the code contains special local standards (e.g., minimum 50% of floor area as multifamily when mixed use, and special density limits through 2024) — see ordinance notes. § 11-03 table notes / 11-04.
- ADUs allowed in MU subject to the San Juan Bautista Design Guidelines and the ADU chapter — 11-04.5-110.
Where it applies: downtown and designated mixed‑use parcels per the zoning map; historic overlays can change FAR (see Historic Preservation). Verify the MU boundary on the zoning map.

C / Commercial and I / Industrial

Purpose/typical uses: retail, services, light industrial uses; commercial frontage treatment and buffering to residences.
Key dimensional standards:
- Setbacks in the C district are to be "consistent but not absolute" with adjacent residential districts; Planning Commission may allow deviations on a case-by-case basis — note to table / § 11‑03 notes.
- Outdoor storage in C and I is allowed only when screened and limited in size (outdoor storage buildings/containers less than 300 sq ft and located in rear/side yards) — § 11-04-080(B).
- Landscaping minimums: commercial/mixed-use lots must have at least 10% of lot area landscaped — § 11-12 (landscaping).
Where it applies: city commercial corridors and industrial areas per the zoning map. Verify parcel zone.

PF (Public Facilities)

Purpose: public buildings and uses.
Key dimensional standards:
- Minimum yards in PF: must equal the most restrictive abutting district; no yard adjoining a street less than 20 ft, and no interior yard less than 10 ft — § 11-03 table notes.
Where it applies: public facility properties shown on the zoning map. Verify parcel zoning.

Hillside Overlay (Overlay district)

Purpose/typical uses: controls development on slopes to preserve ridgelines, limit grading, and protect habitat and scenic corridors — § 11-08-020.
Key standards/process effects:
- Triggers for hillside rules include slopes ≥20%, visible areas within 0.5 mile of Highway 156 view corridors, and properties mapped in the Hillside Overlay — § 11-08-030.
- Hillside development requires special application materials (grading plans, cross sections showing ridgelines, color palettes, geotechnical reports) and often a hillside permit and design review — § 11-08-060 & 11-08-070.
Where it applies: properties listed in the Hillside Overlay; check the overlay map. See San Juan Bautista — Overlay Districts for map context.

Quick standards table (most decision‑relevant items)

District	Building coverage / Site coverage	Typical setbacks / yards	Height (local numeric rules)	FAR / density notes	Code Reference
R‑1	45% building; 58% site (single‑family)	Front setback (subdivisions 20+): 15–25 ft; other setbacks referenced to table — § 11-04-010(A)-(D)	ADU/detached accessory standard 16 ft (ADUs) — 11-04.5	R‑1 subdivided by R‑1‑7 / R‑1‑6 / R‑1‑5 lot sizes; verify density table — § 11-04-010(C)
R‑2 / R‑3	Building/site limits referenced to zoning table (verify)	Setbacks consistent with primary structure; ADU relaxations allowed — 11-04.5	Multifamily height per zoning table; ADU caps apply — 11-04.5	Multifamily open-space and rental-unit ratios for R‑3 (450 sf/unit; 20% rental set‑aside) — § 11-04-010(D)(5)
MU (Mixed‑Use)	Refer to zoning table; exceptions/incentives in notes	Design guidelines apply (SJB design chapters)	Varies — design review often required	FAR 0.75 (general MU); FAR 1.5 allowed in downtown historic in notes; discretionary changes possible — table note
C / I	Refer to zoning table; landscaping 10% min for commercial	Setbacks coordinated with abutting uses; C may deviate per PC — table notes / § 11-04-080(B) file	Varies by parcel and zoning table	Outdoor storage limits (≤ 300 sq ft enclosures) — § 11-04-080(B)
PF	Building/site limits per most-restrictive adjacent district	Yards = most restrictive abutting district; street yard ≥ 20 ft, interior yard ≥ 10 ft (minimums) — table note	See zoning table	See zoning table	table notes

Notes: many per-district numeric details (exact side/rear setbacks, base FARs and exact height limits by district) are set in the zoning standards table referenced by the code (SJBMC 11‑03‑010) and in associated table notes; where the chapter text supplies a number we cite it above. Verify the table entry for a particular parcel when preparing plans.

How discretionary tools change standards

Planned Unit Development (PUD): allows deviations to underlying zone standards (density applied to the PUD as a whole; design-based setbacks; lot coverage tied to parking chapter but cannot exceed underlying zone coverage) — § 11-05-030(A)-(C).
Planning Commission variance/adjustment: the code repeatedly notes the Planning Commission may allow deviations on a case‑by‑case basis for setbacks, R‑1 lot designations, and other site-specific standards — check the citations listed above for each district (e.g., notes to the zoning table, § 11-04.010 and table notes). file

When design review is required (for hillside sites, historic area, or projects triggering aesthetic review) see San Juan Bautista — Design Review for process and submittal expectations.

Checklist (what an applicant must satisfy before plan approval / to avoid discretionary review)

Confirm parcel zoning and any overlays (Hillside Overlay, Historic Overlay); verify on official zoning and overlay maps.
Check the zoning standards table (SJBMC 11‑03‑010) for parcel-specific setbacks, height, lot coverage, FAR and minimum lot size (many chapter entries reference that table). Not in retrieved materials: confirm table entries for subject parcel.
Confirm ADU/JADU rules if adding accessory units (minimum 4 ft side/rear setbacks for ADUs, 16 ft detached ADU height cap unless exceptions apply) — Chapter 11-04.5.
If in a hillside overlay, prepare the required grading, ridgeline cross‑section, geotechnical report and landscape palette per § 11‑08.
Prepare landscape plan meeting Chapter 11‑12 (10% minimum for commercial / MU), and show screening for storage/utility areas.
Confirm parking requirements in Chapter 11‑11 and show compliance (parking affects lot coverage calculations) — see San Juan Bautista — Parking.
For projects invoking design exceptions, get Pre‑Application review with Planning staff and anticipate Planning Commission review. Verify potential need for a PUD or conditional use permits.

Reminder: building permits and Title 24 compliance are separate (see California Building Standards Code); this page is limited to land‑use and development‑standards requirements.

Risks & Ambiguities

Issue	Why it matters	What to verify
Missing per‑district numbers in narrative	Much of the chapter references a zoning standards table (SJBMC 11‑03‑010); without that table you cannot finalize setbacks/height/FAR for a parcel	Obtain the 11‑03‑010 zoning standards table and the zoning map for parcel-specific values. Verify with Planning.
ADU vs. local exceptions and State ADU law	State ADU law constrains local limits (e.g., minimum 4 ft side/rear, 800 sq ft baseline); local code has ADU caps and parcel‑coverage rules — potential conflicts or overlaps	Confirm which local ADU provisions are consistent with the current State ADU statutes; consult Chapter 11‑04.5 and state ADU law pages. file
“Setbacks consistent but not absolute” in C district	This language grants discretion — could lead to surprise setback requirements depending on adjacent district	Ask staff whether PC routinely exercises flexibility on the specific street/block; get an early site visit/pre‑application with planning.
Hillside overlay applicability	Hillside triggers include slope, visibility corridor, and designated overlay — mis‑classification can add extensive submittal needs	Verify whether parcel falls in Hillside Overlay or within 0.5 mi view corridor (see § 11‑08‑030) before final design.
FAR incentives/adjustments in MU / historic district	Notes allow higher FAR in downtown historic areas or discretionary adjustments — unclear when these are granted	Confirm whether your parcel sits inside the Downtown Historic Overlay and what incentives/conditions apply (see table note re FAR 1.5).

Plain‑English summary

For most San Juan Bautista parcels the zoning rules you’ll use during design are: residential single‑family lots are limited to 45% building coverage and 58% site coverage, ADUs are allowed with 4 ft side/rear minimums and an ordinary detached ADU height cap of 16 ft, mixed‑use areas have a typical 0.75 FAR (with a higher 1.5 FAR allowed in the downtown historic area by note), and many precise numbers (setbacks, heights, FAR by district) live in the zoning standards table SJBMC 11‑03‑010 — verify that table for your parcel and check for overlays such as the Hillside Overlay that add extra submittal requirements. file

Source References

San Juan Bautista Municipal Code, Chapter 11 (Zoning / Development Standards), specifically: § 11‑04‑010 (Residential districts); § 11‑04.5 (Accessory dwelling units); § 11‑04‑070 (Required yards); § 11‑05‑030 (PUD development standards); § 11‑08 (Hillside overlay rules). filefilefilefile
Zoning table notes and cross‑references (table notes referenced in the chapters, including FAR notes and PF yard minimums) — see table notes in SJBMC 11‑03 (referenced in chapter text).
ADU‑related local rules (detailed in Chapter 11‑04.5) and State ADU guidance (general state context noted in the California ADU handbook included in materials) — Chapter 11‑04.5. file
Landscaping and screening requirements: Chapter 11‑12 (landscaping) — cites 10% minimum for commercial/mixed‑use.

(If you need the exact per‑district table entries (side/rear setbacks by district, precise FAR/height by district) I can pull the SJBMC 11‑03‑010 table and map entries for your parcel — the narrative chapters point to that table as the definitive per‑district source. Not found in retrieved materials: the complete numeric zoning table SJBMC 11‑03‑010 in full; verify with the municipal code site or planning staff.)

Sources

Retrieved passages

San Juan Bautista Zoning Code (Chapter 11-04.5) High relevance
San Juan Bautista Zoning Code (Chapter 11-11) High relevance
San Juan Bautista Zoning Code (Chapter 11-06) High relevance
CFC § 030 (Title applicable) High relevance
San Juan Bautista Zoning Code (Section 65852.2.) High relevance
CBC § 1104.5 (Title for) High relevance
San Juan Bautista Zoning Code (Chapter 11-05) Medium relevance
CBC § 66314 (§ 66314) Medium relevance
San Juan Bautista Zoning Code (Article 1.) High relevance
San Juan Bautista Zoning Code (Section 65852.2.) Medium relevance

Cited sections

San Juan Bautista Municipal Code, Chapter 11 (Zoning / Development Standards), specifically: **§ 11‑04‑010 (Residential districts)**; **§ 11‑04.5 (Accessory dwelling units)**; **§ 11‑04‑070 (Required yards)**; **§ 11‑05‑030 (PUD development standards)**; **§ 11‑08 (Hillside overlay rules)**. filefilefilefile (Chapter 11)
Zoning table notes and cross‑references (table notes referenced in the chapters, including FAR notes and PF yard minimums) — see table notes in SJBMC 11‑03 (referenced in chapter text). (chapter text)
ADU‑related local rules (detailed in Chapter **11‑04.5**) and State ADU guidance (general state context noted in the California ADU handbook included in materials) — **Chapter 11‑04.5**. file (Chapter 11)
Landscaping and screening requirements: **Chapter 11‑12** (landscaping) — cites 10% minimum for commercial/mixed‑use. (Chapter 11)
SanJuanBautista_ZoningCode.md
2025 California ADU handbook.md

Frequently asked questions

What can I build on an R‑1 lot in San Juan Bautista?

You can build a single‑family residence consistent with the R‑1 district subtype (R‑1‑7, R‑1‑6, R‑1‑5 indicate minimum lot sizes); building coverage is capped at 45% and site coverage at 58% for single‑family lots, and ADUs are allowed subject to the ADU chapter requirements — see § 11‑04‑010(A)-(C) and Chapter 11‑04.5. file

What are San Juan Bautista setback requirements?

General rules on yard requirements and allowed encroachments are in § 11‑04‑070 (eaves, porches, decks, ramps, fences); many district‑specific setbacks are shown in the zoning standards table (SJBMC 11‑03‑010) and the code allows Planning Commission discretion in some cases (e.g., C district). Confirm the table for parcel‑level setbacks. file

Do I need design review in San Juan Bautista?

Design review is required for projects in special areas such as the Hillside Overlay and often for developments invoking design guidelines (e.g., MU downtown, historic areas). Hillside development specifically requires pre‑application meetings and detailed submittals per § 11‑08. See San Juan Bautista — Design Review for process details. file

What are the ADU setback, height, and coverage rules?

Local ADU provisions in Chapter 11‑04.5 allow ADUs with minimum 4 ft side/rear setbacks (state law minimum), a common 16 ft height cap for detached ADUs (with some exceptions), and parcel‑coverage or rear‑yard coverage rules (e.g., ADU rear yard in R‑1 limited to 40% or at least 850 sf) — 11‑04.5 contains the controlling local references. Verify state/local interplay for any exception. file

How is FAR applied in mixed‑use (MU) areas?

The ordinance notes a typical MU FAR of 0.75, but for structures inside the downtown historic district the code notes FAR may be 1.5 (and FAR can be adjusted by discretionary use permits in some cases to achieve preservation or mixed‑use goals). Check the zoning table notes and the parcel’s overlay designation.

How do Hillside Overlay rules affect my project?

If the site is in the Hillside Overlay (or has slope ≥20% or is visible from specified view corridors) you must follow the hillside regulations: pre‑application meeting, grading and ridgeline cross sections, geotechnical reports, landscaping palette, possible hillside permit and Planning Commission hearing — see § 11‑08‑030 and 11‑08‑060. file

Where do I find precise per‑district setbacks, heights and lot coverage numbers?

The chapter text references a zoning standards table (SJBMC 11‑03‑010) as the source for per‑district numeric standards. The narrative in Chapter 11‑04 supplies some numbers (e.g., R‑1 coverage limits) but you must consult 11‑03‑010 and the zoning map for parcel‑specific values. Not found in retrieved materials: the complete 11‑03‑010 table; request that table or confirm with planning staff.

Will parking requirements change lot coverage calculations?

Yes. The PUD chapter and other sections tie lot coverage and parking (Chapter 11‑11) together: parking layout can drive building-envelope/coverage outcomes and PUDs defer to the parking chapter. Always check Chapter 11‑11 for parking standards and show parking on site plans. See San Juan Bautista — Parking. file

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