Local zoning · Costa Mesa

Costa Mesa — Parking

Q: What is the first place I should look to determine how many parking spaces my Costa Mesa project needs?

Start with the zoning tables: Table 13‑85 for residential projects and Table 13‑89 for nonresidential projects; the applicable table establishes the base numeric requirement that the Planning Division applies. § 13‑85 , § 13‑89 .

Q: Can I designate compact/small car spaces to reduce overall lot area?

The Zoning Code allows up to 10% of required spaces to be small/compact for projects over a threshold (non‑R‑1 residential or nonresidential projects with >25 spaces) but only with Planning Division approval (minor CUP). § 13‑94 .

Q: What design standards dictate stall size, aisle width, and ramp slope?

Those geometric and circulation details come from the City of Costa Mesa Parking Design Standards , which the Zoning Code incorporates by reference; the Planning Division enforces compliance and may approve alternatives. § 13‑93(j–k) .

Q: Who can approve a reduction in required parking?

The Zoning Administrator may approve a reduction through a minor conditional use permit where a parking study shows the required number substantially exceeds actual demand; such approvals usually include conditions (e.g., landscaping instead of parking or recorded land‑use restrictions). § 13‑89.5 .

Parking under the Costa Mesa local zoning and planning code, with the controlling citations.

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Last reviewed: July 1, 2026

Overview

This page summarizes what the Costa Mesa Zoning Code requires for parking (off‑street automobile parking), loading / vehicle standing, and bicycle parking. It is focused only on the local zoning/planning rules (not building code or permitting practice). Key rules live in the zoning chapters that contain Table 13‑85 (residential parking), Table 13‑89 (nonresidential parking), and the development‑standards article; the controlling text appears in § 13‑85, § 13‑89, § 13‑92–13‑99, and § 13‑197 among other sections cited below.

Note: where the Zoning Code says a standard is governed by a referenced city standard (for example, the "City of Costa Mesa Parking Design Standards") the design details are by reference and may be administratively updated; the zoning text remains the legal requirement.

(Links: this page discusses city parking and how it ties to zoning, setbacks/development standards, design review, overlays, ADUs, and the California Building Standards Code.)

District-by-district breakdown (practical summary)

Below are the Costa Mesa districts that most affect parking design. Each subsection gives the zoning focus (purpose & typical uses), the parking rule(s) that most often drive decisions, the controlling local citations, and where the rule applies.

R‑1 (Single‑Family Residential)

Purpose / typical uses: single‑family detached homes (standard R‑1 residential district).
Key parking rules: Required off‑street parking for a single‑family detached residence is set out in Table 13‑85(A) — the table requires two (2) garage spaces for most 1‑4 bedroom homes with additional open spaces depending on garage‑access configuration; special rules apply for 5+ bedrooms and for garage dimensions (each garage space: minimum 10 ft × 20 ft) and driveway length (19 ft minimum straight‑in to garage). See § 13‑85 and Table 13‑85(A).
Where it applies: any lot zoned R‑1 (see Table 13‑32 for dimensional context).

R2‑MD, R2‑HD, R‑3 (Multiple‑Family Residential)

Purpose / typical uses: duplexes, triplexes, apartments, townhomes (medium/high density).
Key parking rules: Parking for multifamily/residential components is governed by Table 13‑85 (multi‑family columns) and supplementary conversion rules (minimums if an existing property is being converted). The code requires covered parking assignment rules and minimum covered spaces; conversion projects must meet at least 2.5 spaces per 2–3 bedroom unit and 1.5 spaces per studio/1‑bed (plus one covered space per unit) where applicable. See § 13‑85 and conversion rules in the conversion/conversion‑to‑residential sections.
Where it applies: R2‑MD, R2‑HD, R‑3 and residential components of planned development/other residential zones.

Planned Development (PDR / PDC / PDI / Common Interest Developments)

Purpose / typical uses: master‑planned multi‑building residential, mixed projects.
Key parking rules: Planned developments must provide parking per the Off‑Street Parking Standards (Chapter VI / Table 13‑85/13‑89) and submit a parking allocation plan; parking areas in planned developments are generally required to be screened from public rights‑of‑way and designed as integrated site elements. See § 13‑59 and planned development provisions referencing Chapter VI.
Where it applies: any planned development district and common‑interest developments; declarations/CC&Rs often must record parking rules as part of project approval.

Mixed‑Use Overlay & Specific Plans (e.g., North Costa Mesa)

Purpose / typical uses: vertical/horizontal mixed‑use (retail + residential).
Key parking rules: The overlay supersedes base district rules when stated; parking/ loading in mixed‑use projects is determined in the adopted urban plan or by the planning division and may rely on the city's shared‑parking procedure for mixed uses. See § 13‑83.54 and the reference to shared parking in Table 13‑89.

Commercial / Industrial (Non‑Residential)

Purpose / typical uses: retail, restaurants, offices, industrial, theaters, shopping centers.
Key parking rules: Nonresidential parking ratios are provided in Table 13‑89 (Non‑Residential Parking Standards). Examples: retail and standard commercial uses have ratios measured per 1,000 sq. ft. leasable area (see table for specific use‑by‑use ratios); shopping centers and theaters have special entries. Reduction or shared‑parking credits may be allowed per the city's shared‑parking procedure or by a minor conditional use permit when demand is demonstrably lower. See § 13‑89, § 13‑89.5.
Where it applies: all commercial and industrial zoning districts subject to the zoning code parking tables and definitions.

Key zoning standards (decision‑relevant table)

Requirement	Standard / Practical rule	Code Reference
Residential (single‑family, R‑1) parking	2 garage spaces typical for 1–4 bedrooms; additional open spaces and special rules for 5+ bedrooms; garage min dims 10'×20'; driveway to garage 19 ft min straight‑in	Table 13‑85(A) and § 13‑85
Multifamily (R2/R3) parking	See Table 13‑85; conversion minimums: 2.5 spaces per 2–3 BR; 1.5 per studio/1‑BR, plus one covered per unit for conversions	Table 13‑85; conversion rules § 13‑29 / § 13‑? (conversion text)
Nonresidential ratios	Use‑specific ratios in Table 13‑89 (e.g., restaurants, theaters, shopping centers measured per 1,000 sq.ft.) — shared parking procedures permitted	Table 13‑89 / § 13‑89
Bicycle & TDM amenities	For large employment projects (≥100 employees) provide bicycle racks at 1 rack per 20 employees, showers/lockers under Option A; Option B allows reserved carpool spaces + secure bicycle storage	§ 13‑197
Accessible parking	Comply with the California Building Standards (Title 24) (local code rounds 0.5 up)	§ 13‑95; see California Building Standards Code
Small/compact car allowance	Up to 10% of required parking may be compact (non‑R‑1 residential) with minor CUP; distribution subject to Planning Division	§ 13‑94
Location of required spaces	Required off‑street parking must be on the same lot as the use except common‑interest developments or when authorized by a conditional use permit	§ 13‑93(m)
Vehicle standing / loading	Loading areas must not encroach on required setbacks, must be screened and not interfere with circulation; design reviewed by Planning Division	§ 13‑99

Practical guidance & interpretation

Use the zoning tables first: start with Table 13‑85 for residential projects and Table 13‑89 for commercial/industrial projects; both are binding unless a specific exception applies.
Expect the Planning Division to enforce layout and dimensions through the referenced City of Costa Mesa Parking Design Standards (layout, aisle widths, stall dimensions) — those standards are incorporated by reference and enforceable; alternative designs require Planning Division approval. § 13‑93(j).
If your project is mixed‑use, study the overlay/urban plan early — the overlay may replace base district requirements and allows shared‑parking analysis instead of strict summation of use‑by‑use requirements. § 13‑83.54, Table 13‑89.
For projects with >100 employees or large commercial projects expect Transportation Demand Management (TDM) elements (carpool preferential spaces, bicycle facilities, showers). § 13‑197.
For accessible parking, the zoning code defers to the state building/ADA rules; apply Title 24 requirements and round fractions up at 0.5 per § 13‑95. Also consult the California Building Standards Code for technical dimensions.

Checklist (what an applicant must satisfy on typical plan submittal)

Confirm base zoning district and any overlay/specific plan that supersedes base standards (e.g., Mixed‑Use Overlay).
Determine required parking counts from Table 13‑85 (residential) or Table 13‑89 (nonresidential).
Show stall dimensions, aisle widths, ramp slopes per the City of Costa Mesa Parking Design Standards; reference § 13‑93(j)/(k).
Provide accessible parking details per § 13‑95 and Title 24.
For commercial/employment projects include bicycle parking / TDM measures per § 13‑197 if applicable.
If seeking a parking reduction, prepare a parking study supporting a minor CUP per § 13‑89.5.
For common‑interest developments submit a parking allocation plan and CC&R language if required (see planned development/CID requirements).
Show screening, landscaping, lighting, and pavement details that comply with Chapter VII and Article 3 standards.

Risks & Ambiguities

Issue	Why it matters	What to verify
Mixed‑use shared parking vs. strict tabulation	Overlay or urban plan language may allow shared parking; otherwise strict sum of Table requirements applies	Confirm whether the applicable overlay / urban plan supersedes base tables; verify whether a shared‑parking study is accepted. Verify with the jurisdiction.
City design standards referenced by code	Detailed stall/aisle/ramp geometry is in the referenced "Parking Design Standards" (administratively updated)	Request the current "City of Costa Mesa Parking Design Standards" from Planning/Traffic; design per the latest adopted edition.
ADU / two‑unit exceptions to parking	State law and local implementation (e.g., Gov Code 65852.21) create exceptions (reduced/no parking) near transit or car‑share	If project is an ADU/lot split, check local ADU lot‑split section and the one‑driveway / one‑garage‑space rules; Verify with the jurisdiction. See local urban lot split text.
Bicycle parking counts & configuration	Code prescribes rates for large employment projects; smaller projects may have no explicit numeric requirement in the tables	For non‑large projects bicycle requirements may be discretionary — confirm with Planning Division and § 13‑197 applicability.
Parking on separate lots	Required parking must be on the same lot except CI developments or when a CUP authorizes off‑site parking	If you plan off‑site parking, expect a conditional use permit and recorded agreements; cite § 13‑93(m).

Plain‑English summary

Costa Mesa’s zoning code sets minimum parking counts in Table 13‑85 for residential projects and Table 13‑89 for commercial projects, mandates layout/design standards by reference to the city’s Parking Design Standards, requires accessible parking per Title 24, allows bicycle and TDM measures for large employers, and permits reductions or shared‑parking only with Planning approval or a minor conditional use permit. Always verify overlay/specific‑plan rules and ask the Planning Division whether a shared‑parking study or an alternate design is acceptable.

Source References

Costa Mesa Zoning Code — § 13‑85 (Table 13‑85 / residential off‑street parking standards, Table 13‑85(A))
Costa Mesa Zoning Code — § 13‑89 (Table 13‑89 / nonresidential parking standards)
Costa Mesa Zoning Code — § 13‑92 (purpose of development standards) and § 13‑93 (general parking development standards, driveways, location of parking, paving, screening)
Costa Mesa Zoning Code — § 13‑94 (small car parking) and § 13‑95 (accessible parking — reference to state Title 24)
Costa Mesa Zoning Code — § 13‑96 (permanence of parking for nonresidential projects) and § 13‑99 (vehicle standing, loading, unloading)
Costa Mesa Zoning Code — § 13‑89.5 (reduction in parking by minor CUP) and § 13‑90 (uses not specified)
Costa Mesa Zoning Code — § 13‑197 (facility standards: bicycle parking, TDM, carpool/vanpool)
Costa Mesa Zoning Code — Mixed‑use overlay discussion § 13‑83.54 (overlay standards affecting parking)
Costa Mesa Zoning Code — Urban lot split / two‑unit rules (implementation of Gov. Code 65852.21) (urban lot split text; parking exceptions noted)
California Building Standards (for accessible parking dimensions / Title 24 references) — California Building Standards Code and the 2025 CBC excerpts included in the project file (for technical accessible‑parking tables).

Sources

Retrieved passages

Costa Mesa Zoning Code (§ 2) High relevance
Costa Mesa Zoning Code (Chapter VI) High relevance
Costa Mesa Zoning Code (§ 2) High relevance
CFC § 1 (section if) High relevance
Costa Mesa Zoning Code (section 13-54.53) High relevance
Costa Mesa Zoning Code (section and) High relevance
Costa Mesa Zoning Code High relevance
Costa Mesa Zoning Code (§ 2) High relevance
Costa Mesa Zoning Code (Chapter VII) High relevance
CFC § 800 (section if) Medium relevance
Costa Mesa Zoning Code (section 13-06.) Medium relevance
Costa Mesa Zoning Code (section 13-06.) Medium relevance
CFC § R1 (section if) Medium relevance

Cited sections

Official Costa Mesa code library

Frequently asked questions

What is the first place I should look to determine how many parking spaces my Costa Mesa project needs?

Start with the zoning tables: Table 13‑85 for residential projects and Table 13‑89 for nonresidential projects; the applicable table establishes the base numeric requirement that the Planning Division applies. § 13‑85, § 13‑89.

Do Costa Mesa rules require accessible parking and where is that regulated?

Yes — the Zoning Code requires accessible parking in accordance with the state code (Title 24); the local code directs that accessible spaces be provided as required by Title 24 and rounds 0.5 up to the next whole number. § 13‑95.

Can required parking be located off‑site (on a different parcel)?

Generally no: required off‑street parking must be located on the same lot as the use, except for common interest developments or when the planning division/conditional use permit specifically authorizes off‑site parking. § 13‑93(m).

Does Costa Mesa require bicycle parking?

Yes — large employment/industrial projects are subject to facility standards requiring bicycle parking at 1 rack per 20 employees plus showers/lockers under Option A; other projects may be required to provide secure bicycle storage under Option B or via project conditions. § 13‑197.

Can I designate compact/small car spaces to reduce overall lot area?

The Zoning Code allows up to 10% of required spaces to be small/compact for projects over a threshold (non‑R‑1 residential or nonresidential projects with >25 spaces) but only with Planning Division approval (minor CUP). § 13‑94.

If I have a mixed‑use building, do I add parking requirements for each use?

Not necessarily — mixed‑use projects can use the city's shared‑parking procedure (referenced in the code) to determine a combined requirement rather than simply summing individual use requirements; otherwise the base tables apply. Check the overlay/urban plan for any superseding rules. § 13‑83.54, Table 13‑89.

What design standards dictate stall size, aisle width, and ramp slope?

Those geometric and circulation details come from the City of Costa Mesa Parking Design Standards, which the Zoning Code incorporates by reference; the Planning Division enforces compliance and may approve alternatives. § 13‑93(j–k).

Are there streamlined parking exceptions for ADUs or two‑unit projects?

Local code implements state ADU/two‑unit provisions and includes exceptions: for certain lot splits/ADU circumstances the city does not impose parking requirements if the parcel is within 1/2 mile of a high‑quality transit corridor or a car‑share is nearby; consult the specific urban lot split / ADU text in the code. Verify with the jurisdiction.

If my existing building has less parking than today’s table requires, can I convert to more units?

Conversion rules require that conversions meet at least minimum onsite parking thresholds (e.g., 2.5 spaces per 2–3 BR, 1.5 per studio/1‑BR, and one covered space per unit) and not result in fewer spaces than existed prior to application in some cases. See conversion rules for specifics. § 13‑29 / conversion text.

Who can approve a reduction in required parking?

The Zoning Administrator may approve a reduction through a minor conditional use permit where a parking study shows the required number substantially exceeds actual demand; such approvals usually include conditions (e.g., landscaping instead of parking or recorded land‑use restrictions). § 13‑89.5.

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