Gustine — Development Standards

Last reviewed: July 2, 2026

Overview

This page summarizes the Gustine Zoning and Subdivision Code rules that control development standards (setbacks, heights, lot coverage, density/FAR, accessory‑structure limits) used by planning staff to review projects in Gustine. Standards are set by zoning district tables in Article 2 and by the City‑wide measurement and exceptions rules in Article 3; accessory and ADU rules appear in Article 4. Always confirm parcel‑specific details with the City because exceptions, planned developments, and combining districts can change the numeric standard that applies. See the code for how setbacks and height are measured (§ 4‑30‑090, § 4‑30‑040) .

Note: this page covers only local development standards in the Gustine zoning code (setbacks, height, lot coverage, density, FAR). For construction and life/safety requirements consult the California Building Standards Code (Title 24) and related state law links below.

District-by-district development standards (quick reference)

Each district subsection below states the district name, short purpose/typical uses, the most decision‑relevant dimensional standards from the Gustine Zoning & Subdivision Code, and where the rule text appears. Bolded terms and numbers call out what an applicant will be asked to demonstrate.

Important general cross‑references: minimum setbacks and measurement rules are in § 4‑30‑090; height measurement and exceptions are in § 4‑30‑040; accessory structure rules are in § 4‑44‑030; ADU standards are in § 4‑44‑140. See those sections for measurement and exceptions .

Links: when the text first mentions these related topics they are linked to the local menu pages:

• parking: Gustine Parking
• design review: Gustine Design Review
• overlay rules: Gustine Overlay Districts
• ADUs: Gustine ADUs
• Title 24 / Building Code: California Building Standards Code
• signage: Gustine Signage
• landscaping/screening: Gustine Landscaping and Screening

Residential districts (R-E, R-1, R-2, R-3, R-4, P‑D)

Purpose / typical uses

• R‑E — Residential Estate: low‑density single‑family lots and estate uses.
• R‑1 — Single‑Family Residential: standard single‑family neighborhoods.
• R‑2 / R‑3 / R‑4 — increasing multi‑family or small‑lot housing intensity.
• P‑D — Planned Development: site‑specific standards set by approved plan; P‑D standards are set through a specific plan or Master Plan/Precise Development Plan (§ 4‑22‑050) .

Key dimensional standards (Table 2‑3 and Table 2‑2)

• Minimum lot sizes (Table 2‑2): R‑1 = 6,000 sf (min width 60 ft); R‑E = 15,000 sf (width 100 ft) — see § 4‑22‑040 (Table 2‑2) .
• Setbacks (Table 2‑3; general measurement rules in § 4‑30‑090): typical front setbacks are R‑E = 30 ft, R‑1 = 20 ft, R‑2 = 20 ft, R‑3 = 15 ft, R‑4 = 15 ft, P‑D = 30 ft; interior side setbacks vary (commonly 5 ft for narrow residential zones, 20 ft in estate zones) and rear setbacks often 15–20 ft depending on zone — see § 4‑22‑040 and Table 2‑3 .
• Lot coverage (site coverage) examples from Table 2‑3: R‑E = 35%, R‑1 = 40%, R‑2 = 50%, R‑3 = 60%, R‑4 = 70%, P‑D = 35% (The review authority may limit coverage below the listed maximum for a specific project) .
• Height limits: R‑E / R‑1 / R‑2 generally 30 ft; R‑3 / R‑4 up to 35 ft (measurement and exception rules in § 4‑30‑040) .
• Small‑lot housing reductions: reduced maximum setbacks apply for small‑lot projects in R‑3, R‑4, and P‑D (e.g., max front 10 ft, max side 5 ft, max rear 10 ft) per § 4‑30‑090(B)(4) .

Where it applies

• Use Table 2‑3 / § 4‑22‑040 for residential site planning standards; accessory structure specifics are in § 4‑44‑030 (garages, accessory buildings, separation, height, coverage) .

Practical note

• If your parcel is inside a P‑D, or subject to an earlier approved subdivision/specific plan, the project‑specific approved setbacks in that entitlement can supersede Table 2‑3 (§ 4‑30‑090(B)(2)) .

Commercial districts (C‑N, C‑O, C‑1, C‑2, C‑H)

Purpose / typical uses

• C‑N — Neighborhood Commercial: small scale retail/services near residential.
• C‑O — Office Commercial.
• C‑1 — Downtown/General Commercial.
• C‑2 — General Commercial.
• C‑H — Highway Commercial (higher lot size, highway‑oriented uses).

Key dimensional standards (Table 2‑5 & 2‑6; § 4‑24‑040)

• Minimum parcel sizes: C‑N / C‑O / C‑1 generally 5,000 sf (C‑1 downtown can be 2,500 sf for narrower lots); C‑2 = 5,000 sf; C‑H = 7,500 sf (see Table 2‑5 & 2‑6) .
• Setbacks (examples from Table 2‑5): C‑N front = none required, C‑1 front = 20 ft, C‑O front = none required; side and rear setbacks depend on adjacency to R zones (e.g., 10 ft where adjacent to residential) — see § 4‑24‑040 and § 4‑30‑090 .
• Lot coverage: C‑N and C‑O can be up to 100%, C‑1 typically limited to 60% (review authority can reduce coverage) .
• Height: typical commercial heights are 30 ft (some downtown/commercial areas allow 35 ft) — measurement per § 4‑30‑040 .

Where it applies

• See Table 2‑5 and Table 2‑6 in § 4‑24‑040 for the district matrix; additional facade/street frontage rules are in § 4‑24‑050 for downtown contexts .

Practical note

• Mixed‑use density and residential limits in commercial zones refer to the General Plan and are determined through site plan/subdivision review — confirm density per General Plan Table 3‑2 and local review decisions .

Industrial districts (M, I)

Purpose / typical uses

• M — Manufacturing (lighter manufacturing).
• I — Controlled Industrial (more restrictive; masonry/concrete construction required for primary structures).

Key dimensional standards (Table 2‑8, § 4‑26‑040)

• Minimum lot sizes: M = 5,000 sf net; I = 15,000 sf net (minimum widths 50 ft / 80 ft respectively) .
• Lot coverage: generally 60% maximum; authority can impose a lower cap for a site‑specific approval .
• Height: generally 50 ft maximum for these districts; tall towers or taller structures may require a Use Permit and findings about operational necessity and compatibility (§ 4‑26‑040) .
• Special requirement: in the I district primary structures must be of concrete or masonry (§ 4‑26‑060) .

Agricultural‑Commercial (A‑C)

Purpose / typical uses

• Large parcels for agriculturally related commerce. Minimum parcel size is 20 acres; residential is generally not permitted except limited caretaker or farm support housing (§ 4‑26‑050) .

Airport (AP) and Public/Institutional (P‑I)

Purpose / typical uses

• AP (Airport): site‑specific standards (minimum parcel size, setbacks, height, lot coverage) are set by the review authority and must comply with the Merced County Airport Land Use Plan; some uses prohibited if they would create an airport hazard (§ 4‑26‑070) .
• P‑I: public/institutional projects have site standards established by the review authority at subdivision/permit stage (§ 4‑26‑080) .

Overlays and combining districts

• When a parcel is in a combining or overlay district (such as MU / Mixed Use or other overlays), the combining district chapter controls additional standards or modifies underlying district standards; the combining district chapter (Article 4‑28) directs whether to follow the residential or C‑1 standards for specific items (e.g., the Agricultural‑Commercial combining district refers to R‑E for residential setbacks and C‑1 for commercial setbacks) (§ 4‑28‑010) . See Gustine Overlay Districts for local overlay maps.

Quick standards table (most decision‑relevant items)

(These table numbers and district labels are from the Gustine Zoning and Subdivision Code; always verify against parcel‑specific entitlements and combining district rules.) See § 4‑30‑040 for how height is measured and § 4‑30‑090 for setback measurement/exceptions .

Accessory dwellings and accessory structures (what limits apply)

• ADUs (Accessory Dwelling Units) are regulated in § 4‑44‑140. Key local limits you must track: maximum ADU size (studio/1‑bed 850 sf, 2‑bed 1,000 sf under the code subsection F), attached ADU max = 50% of the existing primary dwelling floor area (where that rule applies), but state ADU law may preempt more restrictive local rules — always reconcile with state ADU law; see local ADU section and the state ADU link California ADU law and the local ADU page Gustine ADUs .
• ADU site controls in Gustine: an ADU cannot cause total lot FAR to exceed 45% (where subsection F applies) and cannot push lot coverage beyond 50%; an ADU is limited from causing open space to drop below 50% in that subsection (see § 4‑44‑140.F.2–4) .
• Detached accessory structure rules: side and rear setbacks for small accessory structures (≤10 ft high) may be 5 ft; detached structures over 10 ft must follow the district setbacks; aggregate accessory coverage limits and separation rules (e.g., 10 ft separation between accessory structures) are in § 4‑44‑030 .
• ADU parking: generally 1 off‑street parking space required per ADU, but several statutory exceptions apply in the local code (§ 4‑44‑140.7) — parking rules are applied with local exceptions and state ADU law constraints; see Gustine Parking and § 4‑44‑140 .

Checklist (what an applicant must satisfy for most projects)

• Confirm the parcel’s zoning and any combining/overlay district and check whether a P‑D or specific plan applies (Zoning map / § 4‑28‑010) .
• Apply underlying district numeric standards (Table 2‑2, Table 2‑3, Table 2‑5/2‑6, Table 2‑8) for lot size, setbacks, coverage, height (see the applicable Table and § 4‑22‑040 / § 4‑24‑040 / § 4‑26‑040) .
• Measure height and setbacks per § 4‑30‑040 and 4‑30‑090 methods and include measurement diagrams with the application .
• For ADUs, check local size caps, FAR, lot coverage, open‑space and parking rules in § 4‑44‑140 and reconcile with state ADU law; include ADU floor plans and parking plan .
• Address accessory building separation, garage façade width, and accessory coverage limits per § 4‑44‑030 .
• Prepare landscaping and screening per Chapter 4‑34 and show screening for mechanicals/parking/svc areas (see Gustine Landscaping and Screening) .
• Determine whether design review or Architectural Review is required and follow that process; attach elevation studies and material samples as required (see Gustine Design Review) .
• Verify parking counts and loading requirements (see Gustine Parking and Article 3 rules) .

Risks & Ambiguities

Plain‑English summary

Gustine’s zoning tables set the numeric rules you must meet for setbacks, height, lot coverage and densities (look at the Table that matches your zone). Residential zones (like R‑1) typically have 20 ft front setbacks, 5 ft side setbacks, 40% lot coverage and 30 ft height; commercial and industrial districts have their own table values and special rules. Measure height and setbacks exactly the way the code prescribes (§ 4‑30‑040, § 4‑30‑090) and confirm ADU limits in § 4‑44‑140 before you design your project .

Source References

• Gustine Zoning & Subdivision Code — Setback regulations and exceptions, § 4‑30‑090 (setback measurement, small‑lot exceptions) .
• Gustine Zoning & Subdivision Code — Height limits and measurement, § 4‑30‑040 .
• Gustine Zoning & Subdivision Code — Residential district standards and Table 2‑3, § 4‑22‑040 / Table 2‑3 (R‑E, R‑1, R‑2, R‑3, R‑4, P‑D) .
• Gustine Zoning & Subdivision Code — Commercial district standards and Table 2‑5, § 4‑24‑040 / Table 2‑5 and Table 2‑6 (C‑N, C‑O, C‑1, C‑2, C‑H) .
• Gustine Zoning & Subdivision Code — Industrial district standards and Table 2‑8, § 4‑26‑040 / Table 2‑8 (M, I) .
• Gustine Zoning & Subdivision Code — Accessory structures, garages, and limits, § 4‑44‑030 (Residential Accessory Uses and Structures) .
• Gustine Zoning & Subdivision Code — Accessory Dwelling Units, § 4‑44‑140 (ADU size, FAR, lot coverage, height, parking provisions) .
• Gustine Zoning & Subdivision Code — Combining/overlay district guidance, § 4‑28‑010 (applicability) .

If you want the ordinance PDF pages or the exact Table images extracted for your parcel, I can pull the relevant table images and the exact subsection language for the sections above (not verbatim long quotes — but I can provide targeted code citations and figure/page numbers). For project‑level interpretation, verify with the City of Gustine Planning Department (some rules can be superseded by P‑D, specific plans, or recorded entitlements). Verify with the jurisdiction for parcel‑specific anomalies.

Retrieved passages

• Gustine Zoning Code (Section 4-30-090) High relevance show source text
• Gustine Zoning Code (Section 4-30-090) High relevance show source text
• CFC § 1 (Section 4-30-090) High relevance show source text
• Gustine Zoning Code (Section 9-30-040) High relevance show source text
• Gustine Zoning Code (ARTICLE 4.) High relevance show source text
• Gustine Zoning Code (Section 4-30-040) High relevance show source text
• Gustine Zoning Code High relevance show source text
• Gustine Zoning Code High relevance show source text
• Gustine Zoning Code (Section 4-30-110) High relevance show source text
• Gustine Zoning Code (Chapter 4-38) High relevance show source text
• Gustine Zoning Code (Section 4-44-100) High relevance show source text

Cited sections

• Gustine Zoning & Subdivision Code — Setback regulations and exceptions, **§ 4‑30‑090** (setback measurement, small‑lot exceptions) . (§ 4)
• Gustine Zoning & Subdivision Code — Height limits and measurement, **§ 4‑30‑040** . (§ 4)
• Gustine Zoning & Subdivision Code — Residential district standards and Table 2‑3, **§ 4‑22‑040** / Table 2‑3 (R‑E, R‑1, R‑2, R‑3, R‑4, P‑D) . (§ 4)
• Gustine Zoning & Subdivision Code — Commercial district standards and Table 2‑5, **§ 4‑24‑040** / Table 2‑5 and Table 2‑6 (C‑N, C‑O, C‑1, C‑2, C‑H) . (§ 4)
• Gustine Zoning & Subdivision Code — Industrial district standards and Table 2‑8, **§ 4‑26‑040** / Table 2‑8 (M, I) . (§ 4)
• Gustine Zoning & Subdivision Code — Accessory structures, garages, and limits, **§ 4‑44‑030** (Residential Accessory Uses and Structures) . (§ 4)
• Gustine Zoning & Subdivision Code — Accessory Dwelling Units, **§ 4‑44‑140** (ADU size, FAR, lot coverage, height, parking provisions) . (§ 4)
• Gustine Zoning & Subdivision Code — Combining/overlay district guidance, **§ 4‑28‑010** (applicability) . (§ 4)
• Gustine_ZoningCode.md

• Official Gustine code library