Local zoning · Mountain House

Mountain House — Parking

Parking under the Mountain House local zoning and planning code, with the controlling citations.

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Last reviewed: July 3, 2026

Overview

This page explains how the Mountain House zoning ordinance controls parking, loading, and bicycle parking for development inside Mountain House New Town. The controlling rules are in the Parking and Loading chapter (Division 10, Chapter 4) and related development-standards chapters; they cover how many spaces are required, where they must be located, minimum stall and aisle dimensions, surfacing/landscaping, accessible parking, truck loading, and bike facilities. See the code text in § 9-10-401 through § 9-10-410 for the base rules and Table 9-10-2.1 for the numerical rates.

(Important internal links used in this page: the word parking links to the Mountain House zoning page, development standards to the Development Standards page, design review to the Design Review page, overlay to the Overlay Districts page, ADUs to the Mountain House ADU page, and California Building Standards Code to the State building-code page.)

What the code requires (core rules)

  • Applicability: The parking rules apply whenever a new building is constructed, an existing building is enlarged, or the use changes. See § 9-10-402.
  • Compute spaces using Table 9-10-2.1 (minimum and maximum rates). Fractional spaces of 0.5 or more round up; less than 0.5 are dropped. See § 9-10-403 and Table 9-10-2.1.
  • Location: Required spaces for dwellings and several specified uses must be on the same lot (or an adjoining lot) zoned for the main use; other uses may place required parking within 300 ft of the main lot. See § 9-10-404.
  • Stall dimensions and geometry: Standard stalls are 9 ft × 20 ft (parallel 9 ft × 26 ft); compact stalls have separate minimums; Director can approve reduced stalls to 8.5 ft × 18 ft. See § 9-10-405(b).
  • Surfacing and lot design: Permanent lots must be surfaced with asphalt or concrete, with exceptions and limited alternative surfacing at the Review Authority’s discretion; parking lot design must follow the Mountain House Design Manual. See § 9-10-405(a) and § 9-10-505(g).
  • Landscaping and screening: Parking lots >20 stalls require minimum 5% interior landscaping, 1 tree per 5 stalls, and a 10 ft landscaped strip to a public street; lots adjacent to residential zones require a 6–7 ft masonry screen wall and a 5 ft planting strip. See § 9-10-505(a–e).
  • Accessible (handicapped) parking: Accessible counts and layout are prescribed (e.g., 1 van space required when total spaces are 1–25; higher thresholds scale up). Accessible stalls must meet dimensions, signage, and proximity requirements and follow the California Building Standards Code (Title 24). See § 9-10-410 and the California Building Standards Code link.
  • Truck/loading: Commercial and industrial truck/loading requirements and minimum design dimensions (minimum 25 ft length × 15 ft width; 14 ft clearance) are in § 9-10-406. On-site driveways/maneuvering areas may substitute for one required loading space if they provide truck maneuvering.
  • Bicycle parking: Industrial and commercial sites must provide secure bicycle facilities; rate is five (5) spaces per building complex plus one (1) per 15 automobile spaces; larger offices must provide showers/lockers. See § 9-10-407.
  • Timing: All parking areas and driveways must be installed prior to Certificate of Occupancy or initiation of use. See § 9-10-408.
  • Modifications & reductions: The Director can approve up to 25% reduction in specified minimums, Planning Commission can approve up to 10% increase in specified maximums, deferred parking up to 50% of minimums can be authorized with conditions and reserve areas noted on site plans. Shared-parking methodologies (e.g., ULI) are an option in the Mixed-Use Zone. See § 9-10-409 and the Mixed-Use allowance.

District-by-district breakdown (how rules play out by zone)

Below are the primary districts that affect how the Chapter 4 parking rules are applied in Mountain House. For each district I summarize purpose, typical uses, and the parking implications that are decision-relevant.

R-1 (Single-family residential)

  • Purpose/typical uses: detached single-family homes.
  • Parking rule highlights: Two (2) parking spaces per dwelling unit (minimum) for single-family; required parking for dwellings cannot be in required front or side yards without a discretionary permit. Required parking must be located on the same lot or adjoining lot as the dwelling. Walking distance limits apply (200 ft to required spaces; guest parking up to 500 ft in planned developments). See § 9-10-403, § 9-10-404, and PD-specific off-street standards in the PD chapter.

Two-family / Small and Large Multifamily

  • Purpose/typical uses: duplexes and multifamily complexes.
  • Parking rule highlights: Table 9-10-2.1 sets 1.5–2.0 spaces per unit depending on small vs. large multifamily. Guest-parking and walk-distance standards are enforced in PDs; compact space caps (no more than 25% compact stalls for multi-family projects ≥5 units). See Table 9-10-2.1 and § 9-10-405(c).

Mixed-Use Zone

  • Purpose/typical uses: horizontally or vertically mixed residential/commercial development (Town Center types).
  • Parking rule highlights: You may use the Urban Land Institute shared parking guidelines as an alternative to Table 9-10-2.1 for a shared-parking study, subject to Director/Review Authority acceptance. Director can also grant reductions or deferred parking consistent with § 9-10-409. See § 9-10-409(a).

C-O (Office Commercial) and other Commercial (C-FS, C-*)

  • Purpose/typical uses: offices, neighborhood and community commercial services.
  • Parking rule highlights: Table 9-10-2.1 gives office and retail ratios (e.g., Administrative Offices 2.5–4.5 /1,000 sq ft). In Public, C-O, and Industrial areas, a minimum 10% of spaces in lots with >10 spaces must be allocated to carpools/cleaner-fuel vehicles and rideshare passenger zones are required at prescribed rates. See Table 9-10-2.1 and § 9-10-405(d–e).

I-T, I-P, I-L (Industrial districts)

  • Purpose/typical uses: light and heavy industrial, warehousing, manufacturing.
  • Parking rule highlights: Truck parking/loading standards are tighter here: 1 truck space per 3,000–20,000 sq ft with additional loading requirements for larger facilities; bicycle lockers/racks for employees required. Required parking usually must be on the same lot as the industrial use. See § 9-10-406 and § 9-10-404(a).

Public (government, parks, transit)

  • Purpose/typical uses: civic facilities, transit, parks.
  • Parking rule highlights: Public zones share rules for accessible spaces and bike storage at transit facilities (secure bike storage required at park-and-ride lots and the Transit Center). See § 9-10-407 and § 9-10-410.

Planned Development (PD)

  • Purpose/typical uses: project-specific standards; PDs can modify the base rules where the PD ordinance and approvals do so.
  • Parking rule highlights: PDs generally must meet Chapter 4 standards, but PD Phase I/II materials must show off-street parking, loading, and circulation (Phase II requires detailed computations). PD standards also typically require two (2) spaces per dwelling unit unless specifically allowed otherwise by the Review Authority. See PD content and off-street parking standards in the PD chapter and § 9-10-405 / § 9-10-403. Verify PD-specific deviations in the adopted PD documents.

Agricultural / Rural zones

  • Purpose/typical uses: farming, agricultural support uses.
  • Parking rule highlights: Some agricultural uses have specific surfacing exceptions and parking minima (e.g., produce stands require an earthen or gravel area for 2 vehicles). Alternative surfacing for truck parking and seasonal businesses can be allowed at the Review Authority’s discretion. See § 9-10-505(g) and relevant use sections for agricultural uses.

Quick reference table — most decision-relevant standards

Topic Key rule / numeric standard Code Reference
Applicability — when chapter applies New building, enlargement, or change of use § 9-10-402
Compute parking Use Table 9-10-2.1 (minimum & maximum); fractional rounding rules § 9-10-403; Table 9-10-2.1
Standard stall size 9 ft × 20 ft (parallel 9×26 ft) § 9-10-405(b)
Accessible parking counts See table in § 9-10-410 (e.g., 1 van space for 1–25) § 9-10-410
Bicycle parking rate (commercial/industrial) 5 spaces per building complex + 1 per 15 auto spaces § 9-10-407(b)
Truck/loading minimum size 25 ft × 15 ft, 14 ft vertical clearance § 9-10-406(c)
Landscaping in parking lots ≥5% interior landscaping when >20 stalls; 1 tree / 5 stalls § 9-10-505(a–b)
Timing of installation Parking & driveways installed before CO or use start § 9-10-408
Modification / reduction Director may reduce up to 25% of specified minimums; deferred parking up to 50% possible § 9-10-409(b, d)

Checklist (what an applicant must provide / satisfy)

  • Calculate required minimum and maximum parking from Table 9-10-2.1 and show computations on site plan (use § 9-10-403).
  • Provide plan showing location of spaces relative to the building (on-site or adjoining lot per § 9-10-404), and walking distances for residences if PD.
  • Dimension stalls and aisles to meet standard sizes (or obtain Director approval for reductions) — § 9-10-405.
  • Provide required accessible parking stalls and signage per § 9-10-410 and Title 24 (California Building Standards Code).
  • Show truck/loading spaces (if commercial/industrial) sized per § 9-10-406 and located off the street.
  • Provide bicycle parking counts and secure facilities per § 9-10-407.
  • Show landscaping, screening, surfacing, lighting, and tree counts for parking areas (see § 9-10-505 and design manual reference).
  • If requesting reduced parking, shared parking, or deferred parking, include supporting study/justification per § 9-10-409; show reserved deferred-parking area and landscape treatment if deferring.

Risks & Ambiguities

Issue Why it matters What to verify
Director discretion (modifications, reductions, deferred parking) Up to 25% reduction and 50% deferred parking are discretionary; approvals are fact-specific and appealable. Confirm with the Community Development Director what documentation is required and the appeal route. See § 9-10-409.
Mixed-Use shared parking methodology Using ULI/shared parking may reduce supply; acceptance is discretionary and requires robust study. Verify acceptable shared-parking methodology and assumptions; confirm whether peer review is required. See § 9-10-409(a).
ADU parking exemptions and state ADU law overlap ADUs have a minimum of 1 parking space, but state ADU law and local ADU rules may provide exemptions (transit proximity, historic district, etc.). Check ADU-specific parking exception criteria and reconcile with state ADU rules. See Mountain House ADU rules § (ADU off-street) and § 9-10-403; verify with Planning staff.
Surfacing exceptions for agricultural/seasonal uses Some agricultural/seasonal uses have nonstandard surfacing allowed; relying on an exemption without Review Authority approval risks rejection. Confirm whether proposed surfacing needs a Review Authority determination per § 9-10-505(g) and any use-specific section.
Parking within front yard / driveway setbacks Parking within required front yards is disallowed except by discretionary permit — can affect feasibility of lot layout. Confirm whether a discretionary permit is possible for the parcel and whether curb cuts/front-yard parking are constrained by neighborhood covenants / street classification. See § 9-10-402(e) and front-yard setback rules.
On-street parking policy / major arterials Major arterials often prohibit on-street parking; plan cannot rely on on-street stalls. Confirm street classification and on-street parking allowances; see circulation chapter and road-type rules. On-street parking may be prohibited on major arterials.

Plain-English Summary

Mountain House requires on-site parking by use type (see Table 9-10-2.1), sets stall and driveway dimensions, requires landscaping and accessible stalls, requires bike parking for commercial/industrial sites, and lets the Director reduce or defer spaces in specific cases — show the needed calculations and complete parking before occupancy. Key rules live in § 9-10-401—§ 9-10-410.

Source References

  • Parking & Loading chapter (Division 10, Chapter 4): § 9-10-401—§ 9-10-410 (intent, general requirements, required parking, location, design, truck parking/loading, bicycle parking, timing, modifications, handicapped parking).
  • Table 9-10-2.1 — Minimum & Maximum Parking Requirements (use-specific numeric rates, residential and nonresidential rows).
  • Parking-area design, stall sizes, compact space rules, carpool/rideshare rules — § 9-10-405, § 9-10-505.
  • ADU parking rules (minimum 1 parking space and exemptions) — Mountain House ADU provisions referencing Chapter 2 of Division 10 for off-street parking.
  • For Title 24 (accessible parking technical standards): California Building Standards Code. California Building Standards Code (consult Title 24 for exact dimensions and legal requirements).
  • Mountain House administrative and zone-specific standards (PD application requirements referencing parking/parking computations): PD chapter and planned development Phase I/II content.

Sources

Retrieved passages

  • Mountain House Zoning Code (§ 1) High relevance
  • Mountain House Zoning Code (§ 1) High relevance
  • Mountain House Zoning Code (§ 1) High relevance
  • CBC § 1 (Chapter be) High relevance
  • Mountain House Zoning Code (§ 1) High relevance
  • CBC § 1 (§ 1) High relevance
  • Mountain House Zoning Code Medium relevance
  • Mountain House Zoning Code (§ 1) Medium relevance

Cited sections

Frequently asked questions

What are the off-street parking minimums for single-family homes in Mountain House?

Single-family homes require two (2) off-street parking spaces per dwelling unit, calculated per Table 9-10-2.1 and enforced by § 9-10-403; spaces for dwellings also must not be located within required front or side yards except by discretionary permit (see § 9-10-402(e)).

How do I calculate parking for a new retail or office building?

You calculate spaces using Table 9-10-2.1 (minimum and maximum rates) in § 9-10-403 — for example, administrative offices are listed as 2.5–4.5 spaces per 1,000 sq ft; sum required spaces for all use types on the site. Fractional spaces of 0.5 or more round up.

Does Mountain House require bicycle parking for commercial projects?

Yes. Commercial and industrial sites must provide secure bicycle facilities (lockers or racks) free to employees; the baseline is 5 spaces per building complex plus 1 per 15 automobile spaces, and larger offices must provide showers/lockers; see § 9-10-407.

What are the required dimensions for standard and compact stalls?

Standard stall minimums are 9 ft × 20 ft (parallel 9 × 26 ft). The Director may approve reductions to 8.5 ft × 18 ft for mixed-size stalls; compact spaces have separate minimums (e.g., 7.5 ft × 16 ft) and cannot exceed 25% of required stalls in multifamily projects ≥5 units. See § 9-10-405(b–c).

Are there rules for truck loading areas and sizes?

Yes. For industrial and commercial uses the code requires truck/loading spaces based on gross floor area, with required space dimensions of at least 25 ft length by 15 ft width and 14 ft vertical clearance; loading areas must be located off the street and not interfere with circulation. See § 9-10-406(c–d).

Can I reduce the number of parking spaces required?

Possibly. The Director can approve up to a 25% reduction in specified minimums and can authorize deferred parking (up to 50% of minimums) under conditions; Planning Commission may increase maximums by up to 10%. Mixed-use projects may use shared-parking analyses (ULI guidelines) as an alternative to the table. See § 9-10-409.

When must parking areas be completed?

All parking areas and driveways must be completely installed prior to issuance of the Certificate of Occupancy or before initiating the use of the building. See § 9-10-408.

How does Mountain House handle accessible (disabled) parking?

Accessible parking counts and stall layout follow the code table and prescriptive rules in § 9-10-410 and the California Building Standards Code (Title 24). The code specifies minimum counts by total parking, van-space requirements, stall dimensions, signage, and proximity to the main entrance. See § 9-10-410.

Are there landscaping requirements inside parking lots?

Yes. Parking lots with more than 20 stalls must include at least 5% interior landscaping, one tree per five stalls, a 10 ft landscaped strip to streets, and planters sized to allow trees and car access. See § 9-10-505(a–d).

Do ADUs have parking requirements in Mountain House?

ADUs must provide one (1) off-street parking space as the minimum, calculated per Chapter 2 of Division 10; there are statutory/local exemptions for certain ADUs (e.g., within 1/2 mile of transit, historic district, conversion of existing structure) — see the ADU chapter for details and § 9-10-403/ADU provisions. Verify parcel-specific exemptions.

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