Marin County — Parking

Last reviewed: July 6, 2026

Overview

This page explains how off-street parking, loading, and related transportation provisions are handled under the Marin County zoning/planning ordinance for the unincorporated areas. In Marin County’s code structure, the zoning titles point you to countywide Parking and Loading requirements in the County Code, and Coastal Zone projects must also satisfy Coastal Transportation standards. Use this as a roadmap, then confirm the exact stall counts, dimensions, and loading-space details in the County Code sections it references.

Core rule in the Coastal Zone: provide adequate on-site parking and transportation facilities, and do not adversely impact existing public parking or access to coastal resources (§ 20.64.150.A.6 ).

Linking context: see the county’s zoning overview, the framework of Marin County Zoning, how uses are classified under Land Use, dimensional rules under Development Standards, potential triggers for Design Review, how Overlay Districts interact, and relief mechanisms under Variances and Exceptions.

How Marin County organizes parking rules

• Countywide parking and loading live in the County Code as “Parking and Loading,” identified in multiple zoning sections as Sections 24.04.330–.400 (Parking and Loading) of the County Code. Coastal and inland projects alike point to these sections for stall counts, dimensions, placement, and loading requirements (e.g., § 20.32.040.J; § 20.32.024.K; § 20.32.160.D ).
• In the Coastal Zone, development must also satisfy the Coastal Transportation standards. These require adequate parking and multimodal facilities, encourage bicycle facilities, and protect public parking near beaches and parklands (§ 20.64.150.A.3, A.6 ). Proposals to restrict public parking near beach access points are evaluated against access policies in the Local Coastal Program (LUP Policies C-PA-18 to -20; see also the code’s cross-references to coastal access policies) .

Countywide decision points for parking, loading, and bikes

The table below condenses the most decision-relevant triggers the ordinance itself calls out for unincorporated projects.

Note on ADUs: Parking for accessory dwelling units in unincorporated areas is heavily constrained by state law; verify ADU parking allowances against California ADU law. For state-level specifics on maximum ADU parking ratios and exemptions, see the state’s ADU guidance (Gov. Code references summarized in the 2025 ADU Handbook) . For building-code-only bicycle or EV-readiness items, consult the California Building Standards Code page.

Coastal transportation standards that affect parking

• Adequacy and impact: Coastal projects must provide adequate parking and transportation facilities and avoid adverse impacts to existing public parking or coastal access (§ 20.64.150.A.6 ).
• Multimodal emphasis: At project outset (beyond routine maintenance), analyze and include necessary multimodal improvements, including bicycle/pedestrian access (§ 20.64.150.A.5 ).
• Bicycle facilities: Where appropriate, incorporate new bicycle facilities; the County encourages bike racks, lockers, and storage (§ 20.64.150.A.3 ).
• Coastal access parking: Parking near beach access points is protected; new restrictions are scrutinized consistent with LUP policies cited by the code (LUP Policies C-PA-18–20) .

District-by-district notes (Coastal zoning districts most likely to raise parking questions)

Parking ratios and geometric standards themselves are not district-specific in the retrieved materials; instead, the districts rely on the countywide “Parking and Loading” provisions cited above. Use these notes to understand context, then verify any district-specific conditions in your entitlement path (including Design Review and Overlay Districts).

C‑VCR — Coastal, Village Commercial/Residential

• Purpose/uses: Not found in retrieved materials.
• Parking takeaway: Follow County Code §§ 24.04.330–.400 for stall counts/layout; Coastal Transportation standards apply (§ 20.64.150). Mixed-use provisions are cross-referenced elsewhere in the code for VCR zones (§ 20.64.170.A.3, “Mixed Uses in Coastal Village Commercial/Residential Zones”) .
• Where it applies: Coastal villages (verify with the jurisdiction).

C‑CP — Coastal, Planned Commercial

• Purpose/uses: Not found in retrieved materials.
• Parking takeaway: Rely on countywide Parking and Loading; apply Coastal Transportation standards (§ 20.64.150) .
• Where it applies: Verify with the jurisdiction.

C‑H1 — Coastal, Limited Roadside Business

• Purpose/uses: Not found in retrieved materials.
• Parking takeaway: Use countywide Parking and Loading; ensure adequate on-site supply and no adverse public parking impact (§ 20.64.150.A.6) .
• Where it applies: Verify with the jurisdiction.

C‑RCR — Coastal, Resort Commercial

• Purpose/uses: Not found in retrieved materials.
• Parking takeaway: Use countywide Parking and Loading; consider Coastal access parking sensitivities for visitor-serving areas (§ 20.64.150.A.6; LUP C-PA-18–20) .
• Where it applies: Verify with the jurisdiction.

C‑RMPC — Coastal, Residential/Commercial Multiple Planned

• Purpose/uses: Not found in retrieved materials.
• Parking takeaway: Apply countywide Parking and Loading; consider mixed-use interactions where referenced in code (§ 20.64.170.A.3) .
• Where it applies: Verify with the jurisdiction.

Practical use-by-use notes

• Bed & Breakfast Inns: Must provide on-site parking in compliance with Coastal Transportation standards and countywide Parking and Loading (§ 20.32.040.J ).
• Agricultural Homestays: Same structure—on-site parking per Coastal Transportation and countywide Parking and Loading (§ 20.32.024.K ).
• Service Stations/Mini‑Markets: On-site parking must meet countywide standards and include enough spaces for all employees on a single shift (§ 20.32.160.D ).
• Commercial parking lots/garages as a primary use: Recognized as “Commercial Parking and Vehicle Storage” in the Coastal definitions; entitlement is by district and permit type (Title 20.130 (Definitions) ). Verify with the jurisdiction.

Checklist

• Confirm whether the site is in unincorporated Marin’s Coastal Zone; if yes, apply § 20.64.150 Transportation standards in addition to base parking rules .
• Determine the primary zoning district and any overlays; confirm whether your land use has a special parking clause (e.g., B&Bs, agricultural homestays, service stations) (§ 20.32.040.J; § 20.32.024.K; § 20.32.160.D) .
• Calculate stalls and loading per County Code §§ 24.04.330–.400 (Parking and Loading) (Not found in retrieved materials; obtain current sections from the County).
• Show on plans that parking won’t reduce existing public coastal parking or access (§ 20.64.150.A.6) .
• Include bicycle facilities where appropriate, consistent with § 20.64.150.A.3; coordinate any design elements with Landscaping and Screening if applicable .
• If an ADU is involved, check California ADU law for parking limits/exemptions (state-controlled) .
• If a shortfall or unusual site condition exists, discuss relief mechanisms under Variances and Exceptions.

Risks & Ambiguities

Plain-English Summary

In unincorporated Marin County, the zoning code sends you to the County Code’s Parking and Loading rules for the actual numbers and design of stalls and loading spaces, and—if you’re in the Coastal Zone—you must also prove your project provides adequate on-site parking without harming public beach/park parking or access. Certain uses, like B&Bs, agricultural homestays, and service stations, reiterate these parking obligations and add practical requirements (like employee spaces).

Information Gaps

• Countywide parking ratios, stall dimensions, placement rules, compact space limits, and loading-berth standards: Not found in retrieved materials (the zoning code references §§ 24.04.330–.400 (Parking and Loading); obtain current County Code text).
• District-specific purposes, typical permitted uses, and dimensional standards for the listed Coastal districts: Not found in retrieved materials. Verify with the jurisdiction.

Source References

• § 20.64.150 (Transportation) — coastal adequacy of parking, multimodal expectations, and protection of public parking/access
• § 20.32.040.J (Bed & Breakfast Inns — parking cross-reference to § 20.64.150 and County Code §§ 24.04.330–.400)
• § 20.32.024.K (Agricultural Homestays — parking cross-reference to § 20.64.150 and County Code §§ 24.04.330–.400)
• § 20.32.160.D (Service Stations/Mini‑Markets — parking cross-reference and employee parking)
• Title 20.130 (Definitions) — “Commercial Parking and Vehicle Storage (land use)”
• Local Coastal Program coastal access policies addressing parking near accessways (LUP Policies C‑PA‑18 to C‑PA‑20), referenced by the code
• State ADU parking constraints (summary of Gov. Code provisions) — 2025 California ADU Handbook (HCD)

Retrieved passages

• Marin County Zoning Code (Section 13574) Medium relevance show source text
• Marin County Zoning Code (Section 20.64.150) Medium relevance show source text
• CGBSC § 5.106.3.1 (Section 5.106.3.1) Medium relevance show source text
• Marin County Zoning Code (§ III) Medium relevance show source text
• CGBSC § 5.106.3.1 (Section 5.106.3.1) Medium relevance show source text
• Marin County Zoning Code (§ III) Medium relevance show source text
• Marin County Zoning Code (Title 20) Medium relevance show source text
• CBC § 407.2.3 Medium relevance show source text

Cited sections

• § 20.64.150 (Transportation) — coastal adequacy of parking, multimodal expectations, and protection of public parking/access (§ 20.64.150)
• § 20.32.040.J (Bed & Breakfast Inns — parking cross-reference to § 20.64.150 and County Code §§ 24.04.330–.400) (§ 20.32.040.J)
• § 20.32.024.K (Agricultural Homestays — parking cross-reference to § 20.64.150 and County Code §§ 24.04.330–.400) (§ 20.32.024.K)
• § 20.32.160.D (Service Stations/Mini‑Markets — parking cross-reference and employee parking) (§ 20.32.160.D)
• Title 20.130 (Definitions) — “Commercial Parking and Vehicle Storage (land use)” (Title 20.130)
• Local Coastal Program coastal access policies addressing parking near accessways (LUP Policies C‑PA‑18 to C‑PA‑20), referenced by the code
• State ADU parking constraints (summary of Gov. Code provisions) — 2025 California ADU Handbook (HCD)
• MarinCounty_ZoningCode.md
• 2025 California ADU handbook.md

• Official Marin County code library