Santa Cruz — Nonconforming Uses

Last reviewed: July 3, 2026

Overview

This page explains how the City of Santa Cruz zoning code treats nonconforming uses, nonconforming structures, and nonconforming lots under the local ordinance. The controlling rules are in Chapter 24.18 (Nonconforming Uses and Structures) together with related definitions in Part 24.22 and reconstruction/repair procedures in Part 24.08; I cite the exact code sections below and interpret them for common local situations. For site- or parcel-specific questions, always Verify with the jurisdiction.

What the code says (high‑level)

• A building, structure or use lawfully established before an ordinance change that no longer meets current district standards is a legal nonconforming structure or legal nonconforming use and may be continued subject to limits in this chapter (§ 24.18.020) .
• Nonconforming uses can be continued but generally may not be expanded or intensified (no increase in area, volume, or intensity) (§ 24.18.060) .
• Nonconforming structures may be altered or enlarged only so they are not made “more nonconforming”; a specific exception allows first‑floor additions to single‑family homes that keep existing side/rear yards and obtain a design permit (§ 24.18.030) .
• If a nonconforming building is damaged or destroyed, repair and reconstruction rules depend on extent of damage (more than 50% of value requires a reconstruction permit and findings) and other limits in the reconstruction permit rules (§ 24.18.040, §§ 24.08.2000–24.08.2040) .
• The party asserting nonconforming status bears the burden of proof and must show the use/structure was lawful when established and has not been illegally intensified (§ 24.18.110) .
• The code defines nonconforming structure and nonconforming use in the Title 24 definitions (e.g., § 24.22.562 and § 24.22.566) .

Throughout this page I link to related City pages you will use in practice: Santa Cruz Zoning & planning overview, the City’s Santa Cruz Zoning and Santa Cruz Land Use menus, and practical topic pages such as Santa Cruz Development Standards, Santa Cruz Parking, Santa Cruz Design Review, Santa Cruz Overlay Districts, and Santa Cruz ADUs. When building work involves structural repairs you will also coordinate with the California Building Standards Code.

District-by-district implications

Below are focused, Santa Cruz‑specific notes showing where the nonconforming rules most often interact with particular districts. For each district I list the official Part or section that establishes the zone (so you can pull the exact numeric standards), summarize typical permitted uses, and say how the nonconforming rules apply locally. Where the local code provides explicit numeric district standards in the files I cite those sections; where the snippet set did not contain numeric tables I indicate that and give the code citation you must consult.

Note: the full district tables (heights, setbacks, lot area, etc.) appear in each district’s “District regulations” part; consult the cited § for exact numbers for a parcel. Verify with the jurisdiction for parcel‑specific interpretations.

R‑S (Residential Suburban) — R‑S

• Purpose / where: See Part 3: R‑S — § 24.10.200 and following for permitted uses and development intent.
• Typical permitted uses: single‑family dwellings, limited agricultural, home occupations, accessory uses; accessory dwelling units (ADUs) are addressed in Chapter 24.16.
• Key dimensional standards: district regulations are set in § 24.10.250 (see the Part 3 district regulations for exact front/rear/side yards and lot area). Not found in retrieved materials for the specific numeric table — Verify with the jurisdiction and § 24.10.250.
• Nonconforming implications: Single‑family homes that became nonconforming with later code changes remain legal but additions must not make the structure “more nonconforming.” First‑floor additions that preserve existing side/rear yards may be allowed with a design permit per the § limiting enlargement of nonconforming structures (§ 24.18.030) .

R‑1 (Single‑Family Residence) — R‑1

• Purpose / where: See Part 4: R‑1, § 24.10.300 et seq. for permitted uses and substandard R‑1 lot rules.
• Typical permitted uses: single‑family dwellings, accessory uses (ADUs permitted under Chapter 24.16), home occupations.
• Key dimensional standards: numeric district regulations are in the district regulations portion (see § 24.10.350 and § 24.10.351 for substandard R‑1 lots). Specific numeric values were Not found in retrieved materials above — Verify with the jurisdiction (see § 24.10.350/§ 24.10.351).
• Nonconforming implications: Nonconforming setbacks or coverage that predate changes are legal nonconformities; additions are controlled so they do not increase nonconformity (see § 24.18.030) and additions above the first story generally must meet current setbacks. .

R‑L / R‑M / R‑H (Multiple‑Residence Low/Medium/High) — R‑L, R‑M, R‑H

• Purpose / where: See Part 5: R‑L (24.10.400), Part 6: R‑M (24.10.500), Part 6A: R‑H (24.10.560) for uses and intent.
• Typical permitted uses: duplexes, multiple dwellings, townhouses, limited day care; accessory uses and ADUs where allowed by Chapter 24.16.
• Key dimensional standards: district regulations are in each part’s “District regulations” (for example § 24.10.550 covers R‑M district regulations table entries) — consult those sections for the numeric values. Some numeric excerpts for dwelling‑type tables appear in § 24.10.550 in the retrieved text.
• Nonconforming implications: The code explicitly allows expansion of single‑family homes in R‑M and R‑T under some historic variation provisions (see § 24.12.450); more generally, structural alterations to nonconforming residential buildings may be allowed to improve livability so long as number of units and bulk are not increased (§ 24.18.080) .

R‑T (Tourist / Beach Residential) and subdistricts — R‑T, RT(A), RT(D), RT(E)

• Purpose / where: See Part 7: R‑T (24.10.600 and specific subdistrict sections, e.g., § 24.10.626–24.10.636 for subdistricts)
• Typical permitted uses: motel/residential types, duplexes/multifamily in some subdistricts, accessory uses and regulated tourist uses.
• Key dimensional standards: each subdistrict has district regulations (see the specific subdistrict § cited above); some subdistricts require certificate of occupancy transfers and special design guidelines (§ 24.10.633 for RT(D)).
• Nonconforming implications: Special rules apply in beach and historic neighborhoods (certificate of occupancy, design guidelines); nonconforming residential units may be altered for livability but cannot be structurally changed to increase units (§ 24.18.080) .

C‑N (Neighborhood Commercial) — C‑N

• Purpose / where: § 24.10.1000 (Part 11: C‑N) establishes the Neighborhood Commercial district and permitted uses (§ 24.10.1010).
• Typical permitted uses: small retail, eating/drinking (with limits), offices, neighborhood services; new development may require a design permit.
• Key dimensional standards: C‑N has special setback/landscaping rules where adjacent to residential zones; see the C‑N “District regulations” and § 24.10.1040–§ 24.10.1100 for specifics. Some setback modifications are described in § 24.12.115 and related site standards.
• Nonconforming implications: A nonresidential use that became nonconforming because of parking shortfalls may be replaced by another nonconforming use so long as the replacement’s parking requirement does not exceed the replaced use’s requirement (§ 24.18.050) — check shared‑parking or reductions in the Santa Cruz Parking rules (§ 24.12.295) for application. .

C‑B (Beach Commercial) — C‑B

• Purpose / where: § 24.10.1100 establishes the C‑B Beach Commercial district for coastal and visitor‑serving uses; see § 24.10.1110 for permitted uses.
• Typical permitted uses: coastal‑dependent businesses, visitor services, retail, restaurants (with special coastal‑zone considerations).
• Key dimensional standards: See the Part 12 district regulations in § 24.10.1100–§ 24.10.1110; new development in the Coastal Zone will also need to follow Local Coastal Program rules.
• Nonconforming implications: The nonconforming chapter is part of the Local Coastal Implementation Plan; reconstruction and replacement of nonconforming coastal buildings must also satisfy coastal findings and reconstruction permit rules (§ 24.08.2000 et seq.). .

I‑G (General Industrial) — I‑G

• Purpose / where: § 24.10.1500 sets out the I‑G district and permitted industrial uses; see § 24.10.1505 for principal permitted uses.
• Typical permitted uses: industrial, research, warehousing, utilities (subject to nuisance/performance standards).
• Key dimensional standards: see the I‑G district regulations in Part 16; consult § 24.10.1500 and the district regulations for setbacks, height and lot coverage (Not found in retrieved materials for the numeric table — Verify with the jurisdiction).
• Nonconforming implications: Nonconforming industrial uses that violate performance standards are not legally nonconforming until they achieve compliance; else they are illegal uses until resolved (§ 24.18.070(3)). .

Quick decision‑relevant table

Checklist — what an applicant must satisfy

• Document that the structure/use was lawfully established (historic permits, dated photos, tax records). Burden of proof rests with applicant (§ 24.18.110) .
• Confirm the proposed work does not increase the intensity, area, or volume of a nonconforming use (§ 24.18.060) .
• If altering a nonconforming structure, show the alteration will not make it more nonconforming; for single‑family first‑floor additions, plan for a design permit (§ 24.18.030) .
• If >50% damaged, prepare an application for a reconstruction permit and meet the general reconstruction requirements (square footage, unit count, setbacks, parking) (§ 24.18.040; § 24.08.2030) .
• For change of nonconforming nonresidential uses or where parking is affected, confirm parking supply/requirements and whether an administrative use permit is required; consult Santa Cruz Parking and § 24.12.295 and § 24.18.050.
• If the property is in a historic or overlay area, check § 24.12.450 (historic variations) and the applicable overlay standards; you may be eligible for variation or special findings.
• Coordinate required design review and coastal permit processes (if in Coastal Zone) — see Santa Cruz Design Review and the Local Coastal Implementation provisions referenced in § 24.18.010.

Risks & Ambiguities

Plain‑English summary

If your building or business was legal under older rules but now conflicts with Santa Cruz’s zoning, it can usually stay — but you cannot expand the nonconforming use or make the building more out‑of‑compliance. Repairs and small changes are allowed; major rebuilds (over 50% damage) require a reconstruction permit and findings. You will have to prove the nonconforming status and coordinate with planning for design review, parking, overlays, and (if needed) coastal or historic approvals (Verify with the jurisdiction). See the code references below for the exact rules including the six‑month abandonment rule and the burden of proof.

Source References

• Santa Cruz Municipal Code — Chapter 24.18 (Nonconforming Uses and Structures): § 24.18.010, § 24.18.020, § 24.18.030, § 24.18.040, § 24.18.050, § 24.18.060, § 24.18.070, § 24.18.080, § 24.18.090, § 24.18.110.
• Santa Cruz Municipal Code — Definitions (Title 24): § 24.22.562, § 24.22.566 (Nonconforming structure/use definitions).
• Reconstruction permit rules: § 24.08.2000–§ 24.08.2040 and general reconstruction requirements (§ 24.08.2030 / § 24.08.2040).
• Parking reductions and nonconforming parking rules: § 24.12.295 (Parking requirements for nonconforming structures/uses).
• Historic variation provisions: § 24.12.450 (Findings required for approval of historic variations) and related parts.
• District overviews and district regulation parts: Part 2–16 of Chapter 24.10 (Examples: § 24.10.200 R‑S, § 24.10.300 R‑1, § 24.10.400 R‑L, § 24.10.500 R‑M, § 24.10.600 R‑T, § 24.10.1000 C‑N, § 24.10.1100 C‑B, § 24.10.1500 I‑G).

Retrieved passages

• Santa Cruz Zoning Code (Chapter 24.18) High relevance show source text
• Santa Cruz Zoning Code (Section 24.12.445.) High relevance show source text
• Santa Cruz Zoning Code (§ 19) High relevance show source text
• Santa Cruz Zoning Code (§ 3) High relevance show source text
• Santa Cruz Zoning Code (title making) High relevance show source text
• Santa Cruz Zoning Code (§ 19) High relevance show source text
• Santa Cruz Zoning Code (§ 19) High relevance show source text
• Santa Cruz Zoning Code (Section 24.08.2030) High relevance show source text
• Santa Cruz Zoning Code (§ 36) Medium relevance show source text
• Santa Cruz Zoning Code (title in) Medium relevance show source text
• Santa Cruz Zoning Code (Section 24.12.450.) Medium relevance show source text
• Santa Cruz Zoning Code (title and) Medium relevance show source text
• Santa Cruz Zoning Code (§ 9) Medium relevance show source text
• Santa Cruz Zoning Code (§ 21) Medium relevance show source text
• Santa Cruz Zoning Code (§ 1) Medium relevance show source text
• Santa Cruz Zoning Code (Chapter 24.08) Medium relevance show source text

Cited sections

• Santa Cruz Municipal Code — Chapter 24.18 (Nonconforming Uses and Structures): **§ 24.18.010**, **§ 24.18.020**, **§ 24.18.030**, **§ 24.18.040**, **§ 24.18.050**, **§ 24.18.060**, **§ 24.18.070**, **§ 24.18.080**, **§ 24.18.090**, **§ 24.18.110**. (Chapter 24.18)
• Santa Cruz Municipal Code — Definitions (Title 24): **§ 24.22.562**, **§ 24.22.566** (Nonconforming structure/use definitions). (Title 24)
• Reconstruction permit rules: **§ 24.08.2000**–**§ 24.08.2040** and general reconstruction requirements (**§ 24.08.2030 / § 24.08.2040**). (§ 24.08.2000)
• Parking reductions and nonconforming parking rules: **§ 24.12.295** (Parking requirements for nonconforming structures/uses). (§ 24.12.295)
• Historic variation provisions: **§ 24.12.450** (Findings required for approval of historic variations) and related parts. (§ 24.12.450)
• District overviews and district regulation parts: Part 2–16 of **Chapter 24.10** (Examples: **§ 24.10.200** R‑S, **§ 24.10.300** R‑1, **§ 24.10.400** R‑L, **§ 24.10.500** R‑M, **§ 24.10.600** R‑T, **§ 24.10.1000** C‑N, **§ 24.10.1100** C‑B, **§ 24.10.1500** I‑G). (Chapter 24.10)
• SantaCruz_ZoningCode.md