Local zoning · Pacifica

Pacifica — Nonconforming Uses

Q: My building was damaged in a storm — can I rebuild it as it was?

If damage exceeds 50% of the market value as determined by a certified appraiser, restoration is allowed only if the rebuilt structure conforms to current district regulations or if the owner obtains a use permit and site development permit and satisfies any required conditions — § 9-4.3002(b)(2)(iv)-(v) . If damage is ≤ 50%, restoration to the prior floor area is allowed.

Nonconforming Uses under the Pacifica local zoning and planning code, with the controlling citations.

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Last reviewed: July 2, 2026

Overview

This page explains how Pacifica treats nonconforming lots, nonconforming structures, and nonconforming uses under the local zoning ordinance (Title 9 / Chapter 4). It summarizes what is allowed to continue, what must stop or be brought into compliance, the limits on repairs and expansions, and the special rules that apply in the R-1 single‑family zone and commercial zones such as C-3. Key rules are codified in § 9-4.259, § 9-4.3001, and § 9-4.3002.

When this page mentions administrative processes that commonly intersect with nonconformity reviews (for example, parking, design review, ADUs, or coastal overlays) it links to the local guidance you’ll need to consult: see the linked topic names below as you read.

How this page uses Pacifica resources (quick links you’ll see inline)

parking — Pacifica Parking
design review — Pacifica Design Review
ADUs — Pacifica ADUs
Development standards — Pacifica Development Standards
Overlay rules — Pacifica Overlay Districts
Title 24 / building code reference — California Building Standards Code
(Other internal links used where topics naturally arise.)

Governing definitions & central rules (short)

The term nonconforming is defined as not meeting current zoning standards; the ordinance defines nonconforming lot, nonconforming use, and nonconforming structure in § 9-4.259.
Article 30 (Intent and Applicability) and the continuance rules are in § 9-4.3001 and § 9-4.3002; these set the baseline: lawful nonconforming uses may continue but are limited in expansion, change, repair, and re‑establishment after abandonment.

District-by-district breakdown (what matters for nonconformities)

R-1 (Single‑Family Residential) — key nonconforming rules

Purpose and where it applies: R-1 is Pacifica’s single‑family residential district; special provisions for small and sloped lots appear in the nonconforming-lot rules. See § 9-4.3002(a).
Typical permitted uses: single‑family residences and accessory uses (including accessory dwelling units when consistent with Article 4.5). ADU rules and ministerial approval exceptions are specifically referenced in the nonconforming-lot subsection.
Key dimensional standards (when a nonconforming home is altered on an existing substandard lot):
- FAR: 50% maximum for uphill lots (slope <20%); 55% if slope ≥20% (where those subrules apply) — § 9-4.3002(a)(1)-(2).
- Maximum height: 25 ft (upland example) — § 9-4.3002(a)(1)(ii).
- Front/garage setback: 20 ft (minimum) — § 9-4.3002(a)(1)(iii).
- Upper‑floor front livable setback: 26 ft — § 9-4.3002(a)(1)(iv).
Practical effect: small legal nonconforming residential lots (including lots ≤ 3,999 sq ft) are limited to one single‑family residence and may include an accessory dwelling unit if ADU standards are met; most other expansions will require a site development permit — § 9-4.3002(a).

C-3 (Service Commercial) — nonconformity context for commercial buildings/uses

Purpose and where it applies: C-3 covers heavier service and industrial‑type commercial uses in Pacifica; permitted and conditional uses are listed in § 9-4.1201.
Typical permitted uses: warehouses, shops (welding, cabinetry, upholstery), car washes, service stations; conditional uses include auto‑repair, refuse/recycling centers, and other industrial uses — § 9-4.1201.
Key dimensional standards: minimum building site 5,000 sq ft and minimum lot width 50 ft, among other district regulations in § 9-4.1202.
Practical effect: nonconforming commercial uses and structures in C-3 may continue if lawful, but expansions, changes to a different nonconforming use, or increases in nonconformity are limited and commonly require a use permit or site development permit under § 9-4.3002.

MU / Mixed‑Use districts (MU‑30, MU‑40, etc.) — what to expect

Purpose and where it applies: MU districts allow combinations of residential and commercial uses; parking and use mixes are regulated across MU‑30 through MU‑60 types (parking matrix references these zones). See parking and use tables and Article 4.x detail.
Practical effect: when seeking conforming‑use status for a lawful nonconforming commercial or mixed use in MU districts, the Commission explicitly considers parking availability, circulation, and whether correction of nonconformity is feasible — see § 9-4.3002(b)(5)(i).

Overlay districts (Coastal, HPD, O‑S, etc.) — overlays matter for conforming status

Where overlays apply: Pacifica’s overlay districts (including the Coastal Zone combining district, historic preservation overlays, and others) impose additional permit requirements and can affect whether a nonconforming use may be converted to conforming status without a coastal permit. The ordinance states that conforming‑use status may require a site development permit, use permit, coastal permit, or combinations thereof when applicable — § 9-4.3002(b)(5).
Practical effect: if a property sits within a coastal or other overlay, expect additional findings, possible Coastal Act considerations, and review under the overlay rules — see Pacifica Overlay Districts and § 9-4.3002(b)(5).

Quick reference table — decision‑relevant nonconforming rules

Topic / standard	What the code requires or allows	Code reference
Definition: "Nonconforming" (lot/use/structure)	Nonconforming means not meeting current zoning; distinguishes nonconforming lot, use, structure, etc.	§ 9-4.259
Continuance of lawful nonconforming uses	Lawful nonconforming uses existing when the code was adopted may continue, subject to restrictions on expansion or change.	§ 9-4.3002
Expansion / movement of nonconforming use	No expansion or move to other buildings/area on the lot without a use permit; cannot extend to greater area inside a building except with approved use permit.	§ 9-4.3002(b)(1)
Change to different nonconforming use	Not allowed unless approved; may change to a similar or more conforming use with a use permit.	§ 9-4.3002(b)(2)
Abandonment / discontinuance	If discontinued for 12 months, nonconforming use is lost unless Commission extends time for circumstances beyond owner's control.	§ 9-4.3002(b)(3)
Modifications to nonconforming structures	Physical changes that increase nonconformity require a use permit; changes that do not increase nonconformity may proceed with building permits and plan check (Planning Administrator decision).	§ 9-4.3002(b)(2)(i)-(ii)
Repair / reconstruction after damage	If damaged > 50% of market value, must be restored to conforming standards unless a use permit + site development permit are approved; if ≤ 50%, may be restored up to former total floor area.	§ 9-4.3002(b)(2)(iv)-(v)
Nonconforming lots — buildability & small lot rule	Nonconforming lots may be legal building sites if new structure meets standards; lots ≤ 3,999 sq ft in residential districts limited to one SFR but may include an ADU; most new construction on nonconforming lots requires a site development permit (ADUs per Article 4.5 are an exception).	§ 9-4.3002(a)
Conforming use status (how to "legalize" a nonconforming use)	Commission can deem a nonconforming use conforming via conditional use permit + site development permit (and coastal permit if needed); several specific findings are required (parking, traffic, neighborhood impacts).	§ 9-4.3002(b)(5)(i)-(ae)
C-3 district minimums (context for nonconformities)	Minimum building site 5,000 sq ft; minimum lot width 50 ft (nonconformity arises if structure/use fails these).	§ 9-4.1202

Checklist — what an applicant must satisfy when proposing work affecting a nonconformity

Demonstrate that the use or structure was lawfully established under the rules in effect when it began (lawful nonconforming status) — § 9-4.259, § 9-4.3001.
If expanding an existing nonconforming use or increasing structural nonconformity, apply for and obtain a use permit (and possibly a site development permit) — § 9-4.3002(b)(1), (2).
If seeking "conforming use" status for a previously nonconforming use, prepare materials to meet the Commission’s findings (parking, traffic, neighborhood impact) and include parking analysis (see parking rules) — § 9-4.3002(b)(5)(i).
If structure was damaged, obtain appraisal and prepare repair/rehab plan; if damage exceeds 50% of market value, be ready to demonstrate conformance or secure required permits for restoration — § 9-4.3002(b)(2)(iv)-(v).
For work on nonconforming lots (including lots ≤ 3,999 sq ft), confirm whether a site development permit is required or whether an ADU qualifies for ministerial approval per Article 4.5 — § 9-4.3002(a) and Article 4.5.
Verify applicable overlay rules (Coastal, HPD, etc.) and whether a coastal permit or additional findings are required — § 9-4.3002(b)(5).

Risks & Ambiguities

Issue	Why it matters	What to verify
Is the use "lawful nonconforming" or was it unlawful when established?	The ordinance protects only lawful nonconforming uses; unlawful uses are not covered by Article 30. If unlawfully established, the owner cannot claim continuance rights.	Verify historical permits/approvals and code in effect when the use began; consult § 9-4.259 and § 9-4.3001(c).
Damage threshold calculation for repairs (>50%)	The 50% market‑value threshold determines whether restoration must conform or can be reestablished; appraisal method, date, and scope can be contested.	Obtain a certified appraisal and read § 9-4.3002(b)(2)(iv)-(v); consider Planning Commission discretion where a use permit/site development permit is proposed.
Short‑term cessation or temporary shutdowns	A 12‑month continuous discontinuance rule can extinguish nonconforming status; "excusable" stoppage requires Commission action.	Document reasons for cessation and, if applicable, apply to the Commission for an extension before the 12‑month deadline — § 9-4.3002(b)(3).
ADU creation on nonconforming sites	State ADU law and the city's Article 4.5 create special exceptions; local ADU rules may allow ADUs even when the primary lot is nonconforming.	Review Article 4.5 (ADU) provisions and § 9-4.3002(a); ADUs may be exempt but check whether corrections to nonconforming conditions are required for safety.
Parking or Coastal permit findings for "conforming use"	Commission must find adequate parking and coastal consistency when legalizing a nonconforming use; parking shortfalls can block conforming status.	Prepare a parking analysis and Coastal Zone assessment; see § 9-4.3002(b)(5)(i) and consult local parking rules.

Plain‑English Summary

Pacifica allows legally existing nonconforming uses, structures, and lots to continue, but you generally cannot expand a nonconforming use, move it, or change it to a different nonconforming use without a use permit; if the use stops for 12 months it’s gone; repairs after major damage often must make the building conform to today’s rules. Key rules live in § 9-4.259 and § 9-4.3002.

Source References

Pacifica definitions and nonconforming rules: § 9-4.259 (definitions) and § 9-4.3001 (intent/applicability) — ordinance text reviewed.
Continuance, change/expansion limits, abandonment, and repair thresholds: § 9-4.3002 (all subsections quoted above).
R‑1 nonconforming‑lot / small‑lot rules and dimensional examples: § 9-4.3002(a)(1)-(2).
Conforming‑use findings and parking considerations: § 9-4.3002(b)(5) and subparts.
C‑3 permitted uses and development regs (context for commercial nonconformities): § 9-4.1201, § 9-4.1202.
ADU nonconforming‑site guidance and Article 4.5 references: Article 4.5 (ADUs) and related sections as cited in the ordinance text.
Parking matrices and requirements referenced when evaluating conforming‑use approvals (for MU and commercial zones).

Sources

Retrieved passages

Pacifica Zoning Code (§ 19.48) High relevance
CBC § 300 High relevance
CBC § 999 (section may) High relevance
Pacifica Zoning Code (Article 30) High relevance
California Building Code (section of) High relevance
California Building Code (section may) High relevance
Pacifica Zoning Code (Chapter 3) High relevance
Pacifica Zoning Code (section shall) High relevance

Cited sections

Official Pacifica code library

Frequently asked questions

What is a lawful nonconforming use in Pacifica?

A lawful nonconforming use is a use that was legal under the rules in effect when it began but no longer conforms to the current zoning; Pacifica defines these categories (nonconforming lot, use, building, structure) in § 9-4.259 and protects lawful nonconforming uses subject to limits in § 9-4.3002.

Can I expand or move my nonconforming business to another part of the lot in Pacifica?

No — a nonconforming use cannot be expanded or moved to another portion of the lot or building occupied at the time this chapter was adopted unless you first obtain an approved use permit (and any other required permits) as described in § 9-4.3002(b)(1).

If my nonconforming use stops, how long before I lose it?

If a nonconforming use is discontinued for a continuous period of twelve (12) months, it cannot be reestablished; the Commission may extend this period if the owner shows cessation was beyond their control, per § 9-4.3002(b)(3).

My building was damaged in a storm — can I rebuild it as it was?

If damage exceeds 50% of the market value as determined by a certified appraiser, restoration is allowed only if the rebuilt structure conforms to current district regulations or if the owner obtains a use permit and site development permit and satisfies any required conditions — § 9-4.3002(b)(2)(iv)-(v). If damage is ≤ 50%, restoration to the prior floor area is allowed.

Can I create an ADU on a nonconforming lot in Pacifica?

Yes — Pacifica’s ADU rules (Article 4.5) allow accessory dwelling units on sites that do not meet all zoning standards in many cases; ADUs are governed by Article 4.5 standards and are an exception to some site development permit requirements for nonconforming lots — see § 9-4.3002(a) and the ADU article.

What happens if I want to legalize (make conforming) a long‑standing nonconforming use?

You can apply to have a use declared conforming through the Commission by seeking a conditional use permit and site development permit (and coastal permit if applicable); the Commission must make required findings about parking, traffic, neighborhood impacts, and building safety before granting conforming status — § 9-4.3002(b)(5).

Does Pacifica require repair of nonconformities when I alter a building?

If an alteration would increase the extent of nonconformity, the change requires a use permit; if it does not increase nonconformity, normal building permits apply but the Planning Administrator decides whether the alteration increases nonconformity — § 9-4.3002(b)(2)(i)-(ii).

Do I need to fix parking shortfalls before the City will approve conforming status?

The Commission requires that adequate parking be provided or that certain findings be met before granting conforming use status; parking is an explicit consideration in conforming‑use approvals under § 9-4.3002(b)(5)(i)(aa).

If my property lies in the Coastal overlay, does that change nonconforming rules?

Yes — when conforming status or modifications are sought, coastal permit rules and Local Coastal Program policies may apply; the ordinance explicitly requires coastal permits where applicable as part of the conforming‑status process — § 9-4.3002(b)(5).

Who decides disputes where an owner and the Planning Administrator disagree about "increasing nonconformity"?

The Planning Administrator makes the initial determination whether an alteration increases nonconformity; that decision may be appealed to the Planning Commission within the appeal period specified in the code — § 9-4.3002(b)(2)(ii).

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