Santa Clara County — Variances and Exceptions

Last reviewed: July 6, 2026

Overview

In unincorporated areas, Santa Clara County’s Zoning Ordinance (Title 17) provides a narrow path for relief when strict application of development standards would preclude reasonable use. The primary tool is a discretionary variance, decided by the Zoning Administrator, with strict, state-aligned findings. Separate, code-defined “exceptions” exist for specific topics—most notably a parking exception—and some combining/overlay districts allow limited flexibility through design review rather than a variance. Use variances are not allowed; relief is confined to development standards like setbacks, height, or parking (§ 5.70.010, § 5.70.020, § 5.70.030, § 4.30.100) .

The County only grants variances to relieve development standards—not to allow a use that the zoning district does not permit (§ 5.70.010) .

Variances: How they work in unincorporated Santa Clara County

• Purpose and scope. A variance provides relief from development standards where, due to a lot’s unique circumstances, strict application would deprive the property of privileges enjoyed by similarly zoned neighbors. Variances cannot authorize uses not otherwise allowed (§ 5.70.010) .
• Required findings. Both findings must be made: (1) special circumstances (e.g., size, shape, topography, location or surroundings) deny privileges; and (2) no special privilege is granted. These mirror Gov. Code § 65906 (§ 5.70.020) .
• Approval authority and hearings. The Zoning Administrator (ZA) hears and decides variance applications, at a public hearing, unless otherwise specified (§ 5.70.030) and decisions may be appealed up to the Planning Commission and Board of Supervisors (Table 5.10‑1; § 5.30.020, § 5.30.060) .
• Parking variance for small residential. For new single-family, two-family, or ADUs, a variance may reduce the number of required spaces or waive covered parking; other uses must use the Parking Exception (§ 5.70.040; see § 4.30.100) . For state law background on ADUs, see California ADU law.
• Scope of approval. Relief is limited to the specific portion of the building/standard at issue; it does not rewrite district rules for the site (§ 5.70.050) .
• Pre-application and written findings. A pre-application meeting with staff is required (§ 5.70.065), and the ZA must issue a formal, analytical statement of findings (§ 5.70.060). Common procedures in Chapter 5.20 also apply (§ 5.70.070) .

Exceptions and other flexibility (not variances)

• Parking Exception (all discretionary uses except those small-residential reductions handled by variance). The approving authority may reduce required spaces where factors like proximity to transit, atypical demand, or lot constraints warrant it, supported by evidence (e.g., a parking study). Reductions must not conflict with required findings for the underlying permit (§ 4.30.100) . See Parking.
• Architecture & Site Approval (ASA) modifications in commercial/industrial districts. For projects that require ASA, the ZA may modify specified setbacks/height with proper justification to promote design quality and compatibility (Table 2.40‑2 note; § 2.40.030) . This is not a variance; it is a built‑in, district‑specific flexibility. See Development Standards and Design Review.
• “-d” Santa Clara Valley Viewshed Combining District. Some departures from massing/retaining wall standards trigger public design review rather than a variance (§ 3.20.040(D)) . See Overlay Districts.
• Historic Preservation incentives. For designated landmarks or -h districts, incentives can include flexibility from parking, use, setbacks, or landscaping, administered via the County’s historic program (§ C17‑24) . See Historic Preservation.
• Inclusionary housing waiver/adjustment. For qualifying legal constraints, the County may waive/adjust inclusionary requirements to the extent necessary to avoid an unconstitutional result, with written findings and applicant’s burden of proof (§ 4.20.130(M)) .

District-by-District: Where variances/exceptions commonly arise

Below are the major districts found in unincorporated Santa Clara County and the development standards context in which variances or code-based exceptions typically surface. For full use tables, see Zoning and Land Use.

A — Exclusive Agriculture

• Purpose/where: Agricultural areas; referenced across supplemental use rules (§ 4.10.080; “A, Exclusive Agriculture”) .
• Typical uses: Agricultural operations; see allowed uses in § 2.20.020. Not found in retrieved materials for a complete list.
• Key standards: Rural base district standards indicate 30 ft front/side/rear setbacks and 35 ft height, among others (Table 2.20‑3; § 2.20.030) .
• Variance touchpoints: Setbacks or height on constrained legacy parcels; parking exceptions seldom apply.

AR — Agricultural Ranchlands

• Purpose/where: Ranchlands (Article 13 index; § 2.20.010(B)) .
• Typical uses: Agricultural/ranch uses; see § 2.20.020. Not found in retrieved materials for a complete list.
• Key standards: See Rural base standards (Table 2.20‑3; § 2.20.030). Slope‑density rules may influence subdivision potential (§ 2.20.040) .
• Variance touchpoints: Setbacks on steep terrain; verify slope-density and cluster pathways before variance.

HS — Hillside

• Purpose/where: Steep hillside areas; additional review for 30%+ slopes applies to R1E, RHS, and HS parcels (§ C12‑350.1) .
• Typical uses: Low-density hillside residential and compatible uses; see § 2.20.020.
• Key standards: Rural base standards (Table 2.20‑3) plus HS supplemental rules (e.g., modified setbacks in legacy subdivisions like Aldercroft Heights; § 2.20.070 with table) .
• Variance touchpoints: Setbacks on substandard lots; driveway/retaining wall siting. Many hillside issues are addressed through design review and building site approvals rather than variances (§ 5.40.020(D)) .

RR — Rural Residential

• Purpose/where: Low-density rural residential areas (Article 35 index) .
• Typical uses: Rural dwellings and compatible uses; see § 2.20.020.
• Key standards: Rural base standards (Table 2.20‑3; § 2.20.030). Cluster and open space dedication may apply for subdivisions (§ 2.20.080) .
• Variance touchpoints: Setbacks and height on irregular legacy lots; check cluster/open-space conditions before pursuing a variance.

CN — Neighborhood Commercial

• Purpose/where: Neighborhood-serving retail and services in urban service areas; multi-family and mixed-use allowed (§ 2.40.010(A)) .
• Typical uses: Neighborhood retail/service; see § 2.40.020. Not found in retrieved materials for a complete list.
• Key standards: See Table 2.40‑2; max height 45 ft (adjacent to residential may differ), and ASA-based flexibility per note 1 (§ 2.40.030) .
• Flexibility: ZA can adjust setbacks/height during ASA with justification (Table 2.40‑2 note 1) .

CG — General Commercial

• Purpose/where: Larger retail/service areas in urban service areas; multi-family and mixed-use allowed (§ 2.40.010(B)) .
• Typical uses: Broad retail and services; see § 2.40.020. Not found in retrieved materials for a complete list.
• Key standards: Table 2.40‑2 shows 65 ft max height in many contexts, with ASA-based flexibility (note 1; § 2.40.030) .
• Flexibility: Same ASA modification pathway as CN.

OA — Administrative‑Professional Office

• Purpose/where: Office uses in urban service areas (§ 2.40.010; “OA”) .
• Typical uses: Offices; see § 2.40.020. Not found in retrieved materials for a complete list.
• Key standards: Table 2.40‑2 includes 25% maximum lot coverage, setbacks adjacent to residential, and 45 ft height, with ASA flexibility (note 1; § 2.40.030) .

ML — Light Industrial

• Purpose/where: Light industrial areas in urban service areas (§ 2.40.010(D), index) .
• Typical uses: Manufacturing/warehousing; see § 2.40.020. Not found in retrieved materials for a complete list.
• Key standards: Table 2.40‑2 lists 10,000 sf min lot area, 40% max lot coverage, and 65 ft height; with ML/MH supplemental landscaping/storage/setback provisions (§ 2.40.030; § 2.40.040) .
• Flexibility: ASA-based modifications per note 1; careful adjacency buffers to residential (§ 2.40.040) .

MH — Heavy Industrial

• Purpose/where: Heavy industrial areas in urban service areas (§ 2.40.010(E), index) .
• Typical uses: Heavier industrial; see § 2.40.020. Not found in retrieved materials for a complete list.
• Key standards: Table 2.40‑2 lists 10,000 sf min lot area, 50% max lot coverage, and 65 ft height; ML/MH supplemental standards apply (§ 2.40.030; § 2.40.040) .
• Flexibility: ASA-based modifications per note 1.

A1 — General Use (Special Purpose)

• Purpose/where: Flexible base district for general residential/agricultural with use-permit options (§ 2.50.010(A)) .
• Key standards: Not found in retrieved materials for a complete table. Expect standard development standards to apply per Chapter 2.50.

RS — Roadside Services (Special Purpose)

• Purpose/where: Motorist-serving clusters along scenic roads with protections for scenic character (§ 2.50.010(B)) .
• Flexibility: Expect signage and ASA to be central; use variances not allowed.

Combining/Overlay districts that affect relief

• -d Santa Clara Valley Viewshed: Tiered standards and design review; exceptions to massing/retaining wall standards route to public design review (§ 3.20.040(D)) .
• -n Neighborhood Standards: Neighborhood-specific standards. Not found in retrieved materials for detail (see §§ 3.40.010–.070 index) .
• -h Historic Preservation: Separate incentives may modify zoning requirements (§ C17‑24) .

Which relief do I use? (quick table)

Checklist

• Confirm your parcel is in the unincorporated County; if in a city’s urban service area, ensure required city general plan conformance materials are included (§ 5.20.070) .
• Identify your base and any combining/overlay districts; pull the exact standard(s) you seek to modify (e.g., Table 2.20‑3 or Table 2.40‑2) (§ 2.20.030; § 2.40.030) .
• If relief is parking-related, decide if the Parking Exception applies instead of a variance (§ 4.30.100; § 5.70.040) .
• Schedule the mandatory variance pre-application meeting (§ 5.70.065) .
• Prepare substantial evidence showing special circumstances and no special privilege (§ 5.70.020) .
• If in the -d Viewshed or a historic district, confirm whether a design-review path or preservation incentive is more appropriate than a variance (§ 3.20.040(D); § C17‑24) .
• File a complete application; be aware of 15‑day appeal windows and de novo appeal review (§ 5.30.020; § 5.30.050) .

Risks & Ambiguities

Plain-English Summary

If you’re in the unincorporated County and a setback or height rule makes your lot unbuildable because of its unusual shape or steep slope, you may seek a variance. You must show your lot is uniquely constrained and that you’re not getting a special deal others don’t have. For parking, most non-residential projects use the Parking Exception, while small residential projects (including ADUs) can use a parking variance. Some commercial/industrial standards can be fine‑tuned through ASA, and overlay districts like the Viewshed or Historic Preservation program have their own flexibility tools.

Source References

• Variances: § 5.70.010–.070; findings, authority, parking variance, scope, pre-app, common procedures
• Review authority/appeals: Table 5.10‑1 (§ 5.10.020); § 5.30.020; § 5.30.050
• Parking Exception: § 4.30.100
• Rural base district standards: § 2.20.030 (Table 2.20‑3); HS supplemental § 2.20.070; RR supplemental § 2.20.080
• Commercial/Industrial purposes/standards and ASA flexibility: § 2.40.010; § 2.40.030 (Table 2.40‑2); § 2.40.040
• Design Review & Viewshed combining district: § 5.40.020; § 3.20.040(D)
• Historic Preservation incentives: § C17‑24
• Inclusionary waiver/adjustment: § 4.20.130(M)
• City urban service area conformance: § 5.20.070

Retrieved passages

• Santa Clara County Zoning Code (Section shall) High relevance show source text
• Santa Clara County Zoning Code (§ 13) High relevance show source text
• Santa Clara County Zoning Code (Section 35004) High relevance show source text
• Santa Clara County Zoning Code (§ 4.10.195.) High relevance show source text
• Santa Clara County Zoning Code (Article is) High relevance show source text
• Santa Clara County Zoning Code (§ 22) High relevance show source text
• Santa Clara County Zoning Code (Section and) High relevance show source text
• Santa Clara County Zoning Code (§ 66333) High relevance show source text
• Santa Clara County Zoning Code (§ 4.30.100.) Medium relevance show source text
• Santa Clara County Zoning Code (§ 4.30.020.) Medium relevance show source text
• Santa Clara County Zoning Code (§ 1) Medium relevance show source text
• Santa Clara County Zoning Code (Section 1270.06) Medium relevance show source text
• Santa Clara County Zoning Code (Section 4125) Medium relevance show source text
• Santa Clara County Zoning Code (chapter which) Medium relevance show source text
• Santa Clara County Zoning Code (Section shall) Medium relevance show source text
• Santa Clara County Zoning Code (§ 4) Medium relevance show source text
• Santa Clara County Zoning Code (§ 1) Medium relevance show source text
• Santa Clara County Zoning Code (§ 5) Medium relevance show source text
• CGBSC § 35004 (§ 35004) Medium relevance show source text
• Santa Clara County Zoning Code (ARTICLE 14) Medium relevance show source text
• Santa Clara County Zoning Code (Section 2770) Medium relevance show source text
• Santa Clara County Zoning Code (Chapter 4.30) Medium relevance show source text
• Santa Clara County Zoning Code (CHAPTER 5.40.) Medium relevance show source text
• Santa Clara County Zoning Code (ARTICLE 26) Medium relevance show source text

Cited sections

• Variances: § 5.70.010–.070; findings, authority, parking variance, scope, pre-app, common procedures (§ 5.70.010)
• Review authority/appeals: Table 5.10‑1 (§ 5.10.020); § 5.30.020; § 5.30.050 (§ 5.10.020)
• Parking Exception: § 4.30.100 (§ 4.30.100)
• Rural base district standards: § 2.20.030 (Table 2.20‑3); HS supplemental § 2.20.070; RR supplemental § 2.20.080 (§ 2.20.030)
• Commercial/Industrial purposes/standards and ASA flexibility: § 2.40.010; § 2.40.030 (Table 2.40‑2); § 2.40.040 (§ 2.40.010)
• Design Review & Viewshed combining district: § 5.40.020; § 3.20.040(D) (§ 5.40.020)
• Historic Preservation incentives: § C17‑24 (§ C17)
• Inclusionary waiver/adjustment: § 4.20.130(M) (§ 4.20.130)
• City urban service area conformance: § 5.20.070 (§ 5.20.070)
• SantaClaraCounty_ZoningCode.md

• Official Santa Clara County code library