Local zoning · San Benito County

San Benito County — Development Standards

Development Standards under the San Benito County local zoning and planning code, with the controlling citations.

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Last reviewed: July 6, 2026

Overview

This page distills how the San Benito County Zoning Ordinance (Title 25) regulates setbacks, height, lot coverage, density, and FAR for projects in the unincorporated areas. The rules work in layers: a parcel always has a base zoning district, and in some locations one or more combining/overlay districts add extra standards (the more restrictive standard controls). The ordinance also includes countywide development and design standards that apply across districts.

Always confirm both the base zone and any combining/overlay zone on your parcel; where standards conflict, the stricter rule applies, though a “minor modification” can adjust certain numbers (e.g., reduce a required setback by up to 20%) if findings are met. See § 25.02.008 and Table 25.02‑B.

How the code is organized

  • Base zones implement the General Plan and set primary use and development regulations; combining zones overlay additional regulations in special areas. See § 25.03.003 and Table 25.03‑A.
  • Countywide development and design standards (e.g., how to measure lot coverage, height exceptions, fencing standards) appear in Chapter 25.07 and apply in all unincorporated areas unless a more specific rule governs.
  • Some areas are governed by adopted specific plans; in those areas the specific plan standards control. See § 25.06.002.

Snapshot of key dimensional standards

The table below highlights frequently-checked standards. Always verify with the full district tables cited.

District (unincorporated areas) Max Height Front Setback Side Setback Rear Setback Max Lot Coverage FAR Code Reference
AR (Agricultural Rangeland) 35 ft 30 ft 32 ft 35 ft Not found in retrieved materials Not found Table 25.03‑C (Ag)
AP (Agricultural Productive) 35 ft 25 ft 32 ft 35 ft Not found Not found Table 25.03‑C (Ag)
R (Rural) 35 ft 25 ft 32 ft 35 ft Not found Not found Table 25.03‑C (Ag)
RT (Rural Transition) 35 ft 25 ft 32 ft 35 ft Not found Not found Table 25.03‑C (Ag)
RR (Rural Residential) 35 ft 25 ft 15% of lot width, min 8 ft, max 32 ft 20% of lot depth, 20–35 ft 40% N/A Table 25.03‑E (Res)
R‑1 (Single‑Family Residential) 30 ft 20 ft 10% of lot width, min 6 ft, max 20 ft 20% of lot depth, 20–35 ft 40% 0.8 Table 25.03‑E (Res)
RM (Residential Multiple) 35 ft 20 ft (may be 15 ft on <7,200 sf lots with admin approval) 10% of lot width, min 6 ft, max 20 ft 20% of lot depth, 20–30 ft 60% 0.8 Table 25.03‑E (Res)
BP / M‑1 / M‑2 (Industrial) 40 ft 25 ft (landscaped) 10 ft 10 ft 50% 0.8 Table 25.03‑I (Ind.)

Notes:

  • In residential districts, minimum lot size and density are tied to utility availability; ADUs/JADUs do not count toward density. See Table 25.03‑E notes and § 25.08.002 cross‑reference.
  • Agricultural district standards also note ADUs do not count toward density; see Table 25.03‑C note.

Base Zoning Districts — District-by-district

Agricultural Rangeland (AR)

  • Purpose and setting: Maintains grazing/open space and very low residential intensity.
  • Typical permitted uses: Agriculture and related rural uses (full use table not fully visible). Not found in retrieved materials.
  • Key standards in unincorporated areas: 35 ft height; 30/32/35 ft front/side/rear setbacks; minimum lot size 40 acres; density 1 du/40 acres. See Table 25.03‑C.
  • Where mapped: Rangeland areas per General Plan; confirm on the official zoning map. § 25.03.002.

Agricultural Productive (AP)

  • Purpose: Preserve agricultural lands with higher productivity.
  • Standards: 35 ft height; 25/32/35 ft setbacks; minimum lot size 5 acres; density 1 du/5 acres. Table 25.03‑C.

Rural (R)

  • Purpose: Transitional large‑lot rural living between agriculture and suburban areas.
  • Standards: 35 ft height; 25/32/35 ft setbacks; minimum lot size 5 acres; density 1 du/5 acres. Table 25.03‑C.

Rural Transition (RT)

  • Purpose: Bridges rural to more urban settings at slightly smaller lots.
  • Standards: 35 ft height; 25/32/35 ft setbacks; minimum lot size 2.5 acres; density 1 du/2.5 acres. Table 25.03‑C.

Rural Residential (RR)

  • Purpose: Rural residential with limited agricultural activities near urban services. § 25.03.005(B).
  • Standards: 35 ft height; 25 ft front; sides at 15% of lot width (min 8 ft, max 32 ft); rear at 20% of depth (20–35 ft); coverage 40%. Density up to 2 du/acre; lot size 0.5–1 ac depending on utilities. Table 25.03‑E.

Single-Family Residential (R‑1)

  • Purpose: Primarily detached single‑family neighborhoods; intensity varies by utility availability. § 25.03.005(D).
  • Standards: 30 ft height; 20 ft front; sides at 10% of lot width (min 6 ft, max 20 ft); rear 20% of depth (20–35 ft); coverage 40%; 0.8 FAR. Minimum lot size ranges from 5,000 sf (public water/sewer) to 2.5 acres (well + septic). Table 25.03‑E.

Residential Multiple (RM)

  • Purpose: Urban‑level multi‑family areas where services and circulation exist. § 25.03.005(E).
  • Standards: 35 ft height; 20 ft front (may be 15 ft on <7,200 sf lots with administrative approval); sides at 10% of lot width (min 6 ft, max 20 ft); rear 20% of depth (20–30 ft); coverage 60%; 0.8 FAR. Density 8–20 du/acre where both water and sewer are available. Table 25.03‑E.

Business Park (BP), Light Industrial (M‑1), Heavy Industrial (M‑2)

  • Purpose: Employment/industrial districts of increasing intensity; any building type is allowed if otherwise permitted. § 25.03 (Industrial district special regs.).
  • Standards: 40 ft height; 25 ft landscaped front; 25 ft street side; 10 ft interior side and rear (with special adjacency rule to residential); 50% lot coverage; 0.8 FAR. Table 25.03‑I.

Public/Quasi‑Public (PQP) and Resource Recovery Park (RRP)

  • Purpose: Public facilities/services and specialized resource‑recovery areas; RRP modifies base zoning while otherwise applying the base zone. § 25.03.008.
  • Standards: For RRP, 1.0 FAR, 40 ft height, interior side and rear 0 ft; front and street‑side setbacks are specified in Table 25.03‑K (exact numeric values for front/street‑side not fully visible in retrieved text). PQP standards are “subject to design review.” Table 25.03‑K. Not found in retrieved materials for exact front/street‑side numbers; verify with the jurisdiction.

Commercial Thoroughfare (C‑1) and Neighborhood Commercial (C‑2)

  • Purpose: General commercial categories as shown in Table 25.03‑A. § 25.03.003.
  • Typical uses/standards: Not found in retrieved materials (dimensional standards table for C‑1/C‑2 not present). Note: For fencing/walls in required yard areas of commercial zones, the maximum height is 6 ft in a required front yard and 8 ft elsewhere on the lot (subject to visibility standards). Table 25.07‑K.
  • Action: Verify permitted uses and dimensional standards for C‑1 and C‑2 with Planning.

Countywide development and design standards that affect site planning

  • Measuring floor area and lot coverage; setback and lot line rules. The code defines how residential vs. non‑residential floor area is counted and specifies what is excluded from “lot coverage” (e.g., eaves up to 3 ft, open‑roof structures, uncovered patios). See § 25.07.005(G–I).
  • Height exceptions and projections. Certain elements (e.g., chimneys, decorative features, elevator towers) can project above the district height limit within limits (e.g., elevator/stair towers up to 16 ft over, limited to 10% of roof area, with setbacks from exterior walls). See Table 25.07‑B and § 25.07.009.
  • Parking. Provide off‑street parking per use at time of construction or establishment; see the San Benito County Parking page and § 25.07.010.
  • Hillside/Ridgeline. Residential/urban development is prohibited on slopes ≥30% and within 100 vertical ft of a ridgeline unless no alternatives exist. Hillside/ridgeline design review is required in mapped corridors. § 25.07.017. See San Benito County Design Review.
  • Airport combining zones. In the Frazier Lake (FLA) and Hollister Municipal (HMA) areas, building “height” is measured as ground elevation plus building/roof elements and must remain below FAA Part 77 surfaces; density is capped by persons/acre thresholds and avigation easements apply. See § 25.04.005 (FLA) and § 25.04.006 (HMA).
  • Floodplain development. Projects in FEMA‑mapped floodplains must elevate specified occupiable areas at least 1 ft above the 100‑year flood elevation and comply with the floodplain ordinance. § 25.08.026.
  • Minor modifications. The Planning Director may approve limited deviations, including up to 20% setback reduction, 10% height increase, and 10% additional lot coverage (lot size and residential density are excluded). § 25.02.008 and Table 25.02‑B.
  • Lot line adjustments. Reviewed for conformity with zoning development standards during zoning clearance. § 25.02.007.
  • Planned Unit Development (PUD) combining. Allows tailored standards (lot size, coverage, setbacks, parking, open space, building ratios) by Planning Commission resolution; minimum project size is 1 acre (or 2 dwellings). § 25.05.003.

Residential intensity and ADUs

  • Utility availability can change minimum lot size and maximum density in RR, R‑1, and RM; see Table 25.03‑E notes. ADUs/JADUs do not count toward density in residential and agricultural districts as noted in Tables 25.03‑E and 25.03‑C.
  • For state‑level allowances (e.g., guaranteed 800 sf ADU with 4‑ft side/rear setbacks and statewide ADU height caps), see California ADU law. For local ADU placement and standards, see § 25.08.002 cross‑references embedded in district tables.

Related navigation

Checklist

  • Identify base zone and any combining/overlay zone on the official zoning map (zoning applies only in unincorporated areas). § 25.03.002–.003
  • Confirm allowed uses and required permit type for the site’s zone (Tables 25.03‑D/E/I/K as applicable).
  • Lay out buildings to meet district setbacks, height, lot coverage, density, and FAR. (See tables above.)
  • If in airport influence areas, confirm Part 77 height surfaces, persons/acre caps, and easement/ALUC referral. § 25.04.005–.006
  • If in hillside/ridgeline corridors, check slope and ridgeline limits and any required design review. § 25.07.017
  • Provide on‑site parking to § 25.07.010 and address screening/landscaping where required.
  • In floodplains, set finished floors as required and include floodplain compliance materials. § 25.08.026
  • If standards are narrowly missed, evaluate a minor modification (e.g., up to 20% setback reduction). § 25.02.008
  • If proposing a PUD, assemble custom standards per § 25.05.003.

Risks & Ambiguities

Issue Why it matters What to verify
Commercial (C‑1/C‑2) dimensional tables not visible Without explicit setbacks/heights, site planning may be off Not found in retrieved materials; confirm C‑1/C‑2 standards with Planning. § 25.03.003
Airport overlays redefine “height” and cap population density Noncompliance can block permits Check if parcel is in FLA or HMA overlays; confirm Part 77 surfaces and persons/acre limits; ALUC referral/easement. § 25.04.005–.006
Hillside/ridgeline triggers Prohibited slopes/ridgelines can reshape site plans Measure slopes and vertical distance to ridgelines; determine if design review applies. § 25.07.017
Utility availability affects residential lot size/density Drives feasibility of subdivision or additions Confirm water/sewer status for RR/R‑1/RM lots; follow Table 25.03‑E notes.
Industrial side yard footnote Published table includes footnotes; adjacency rules to residential may increase setbacks Confirm side yard where next to residential; see Table 25.03‑I notes.
Lot coverage definition nuances Exclusions (eaves, open roofs, patios) can change compliance Apply § 25.07.005(G) measurement rules before counting coverage.

Plain-English Summary

If you’re building in unincorporated San Benito County, start by finding your base zone and any overlays. Then fit your project to the zone’s numbers (setbacks, height, coverage, density/FAR) and the countywide standards for things like parking, fences, and height exceptions. Some areas—airport influence zones, hillsides, and floodplains—add special rules. If you’re close but not quite meeting a number, the code allows small, staff‑level adjustments under the minor modification process.

Source References

  • § 25.01.001–.003 General applicability, purpose, relationship to other regulations.
  • § 25.03.002–.003 Official zoning map; zones implementing the General Plan (Table 25.03‑A).
  • § 25.03.004 Agricultural/Rural Districts; Table 25.03‑C (Ag development standards).
  • § 25.03.005 Residential Districts; Table 25.03‑E (Res development standards).
  • Table 25.03‑I Industrial development standards and special regulations.
  • § 25.03.008 Public/Quasi‑Public; Table 25.03‑K (PQP/RRP standards).
  • § 25.04.005 Frazier Lake Airpark Combining; § 25.04.006 Hollister Municipal Airport Combining.
  • § 25.06.002 Adopted specific plans.
  • § 25.07.005 Measurement (floor area, lot coverage, setbacks, lot lines).
  • § 25.07.009 Height exceptions, Table 25.07‑B.
  • § 25.07.010 Parking.
  • § 25.07.017 Hillside/Ridgeline.
  • § 25.02.007 Lot line adjustments; § 25.02.008 Minor modifications (Table 25.02‑B).
  • § 25.05.003 PUD standards.
  • § 25.08.026 Floodplain Development Standards.

Sources

Retrieved passages

  • San Benito County Zoning Code (§ 3) High relevance
  • CBC § 3 (§ 3) High relevance
  • San Benito County Zoning Code (§ 3) High relevance
  • San Benito County Zoning Code (§ 3) High relevance
  • CBC § 25.08.016 (§ 25.08.016) High relevance
  • San Benito County Zoning Code (article except) High relevance
  • San Benito County Zoning Code (§ 25.07.006) High relevance
  • San Benito County Zoning Code (§ 25.08.016) High relevance
  • San Benito County Zoning Code Medium relevance
  • San Benito County Zoning Code (§ 3) Medium relevance
  • CBC § 25.08.029 (Chapter 25.02) Medium relevance
  • San Benito County Zoning Code (Chapter 25.08) Medium relevance
  • San Benito County Zoning Code (§ 25.03.001) Medium relevance
  • San Benito County Zoning Code Medium relevance

Cited sections

Frequently asked questions

What can I build on an R‑1 lot in San Benito County?

R‑1 is intended for single‑family neighborhoods. Height is typically capped at 30 ft; front setback 20 ft; side setbacks at 10% of lot width (min 6 ft, max 20 ft); rear yard at 20% of lot depth (20–35 ft). Lot size and density depend on water/sewer availability. See Table 25.03‑E and § 25.03.005(D).

What are the residential setbacks in unincorporated areas?

For RR: front 25 ft; sides 15% of width (min 8 ft, max 32 ft); rear 20% of depth (20–35 ft). For R‑1: front 20 ft; sides 10% of width (min 6 ft, max 20 ft); rear 20–35 ft. For RM: front 20 ft (may be 15 ft with admin approval on small lots), sides 10% with min/max, rear 20–30 ft. Table 25.03‑E.

What are industrial setbacks and heights?

In BP, M‑1, M‑2: max height 40 ft; front 25 ft (landscaped); street side 25 ft; interior side and rear 10 ft (with additional side yard where adjacent to residential). Coverage 50%, FAR 0.8. See Table 25.03‑I.

Do I need design review for hillsides or ridgelines?

Yes, where the Hillside/Ridgeline provisions apply. Development on ≥30% slopes and within 100 vertical ft of a ridgeline is prohibited unless no alternatives exist, and design review is required in mapped corridors. § 25.07.017; also see the County’s design review criteria.

How is building height measured near airports?

In the FLA/HMA combining zones, height is measured as site elevation plus the structure and roof elements, and it must be below the FAA Part 77 surface. Projects may also be limited by maximum persons‑per‑acre and require ALUC referral and an avigation easement. § 25.04.005–.006.

Do ADUs count toward density or lot coverage?

ADUs/JADUs do not count toward density in the residential and agricultural tables (see notes in Tables 25.03‑E and 25.03‑C). Lot coverage still applies per § 25.07.005(G) measurement rules, and state ADU law guarantees certain minimums. Verify site specifics.

Can I get relief if I can’t meet a setback by a foot or two?

Possibly. The Planning Director can approve a minor modification reducing a required setback by up to 20%, or increasing height by 10% or lot coverage by 10%, when findings are met. Bigger departures require a variance. § 25.02.008.

What if my parcel is in a FEMA floodplain?

You can generally build if you elevate occupiable space to at least 1 ft above the 100‑year flood elevation and comply with the floodplain ordinance and zoning standards. § 25.08.026.

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