Walnut Creek — Land Use

Last reviewed: July 3, 2026

Overview

This page summarizes what the Walnut Creek Zoning Ordinance (Title 10) actually says about land use: which uses are permitted, which require a Conditional Use Permit or Planned Development (P‑D) approval, and how special districts and overlays change the rules. For quick reference see the City's land‑use summary table and the district articles for the R, M‑U, MU‑C, O‑C, B‑P, H‑P‑D, P‑D and O‑S‑R districts. Consult the city's published development standards and the parking rules referenced in the code when sizing a project.

Notes up front:

• The land use outcomes are driven by the Land Use Summary Table (uses marked P/L/U/N) and each district article (purpose + additional use regulations). See the summary table in § 10‑2.2.1901.
• Several districts require discretionary P‑D or CUP review instead of straight ministerial building permits; read the district article text carefully. Examples include Mixed Use Planned Development (M‑U) and Planned Development zoning — see § 10‑2.2.901 and § 10‑2.2.1704.
• When the code refers to technical development controls (setbacks, heights, lot coverage) it frequently points to the city's Property Development Regulations; check the development standards and the cited ordinance sections.

Also see the city's processes for design review, overlay districts, historic preservation, and rules for ADUs. For code & construction compliance remember the California Building Standards Code applies to building permits.

District-by-district breakdown

Below are the principal base and special districts that control what you may do on a parcel. Each subsection gives the ordinance purpose, typical permitted/conditional uses (plain language), key development-control calls the ordinance makes, and where that district generally applies (when stated in code). All items are grounded in the Walnut Creek zoning ordinance text; the controlling section is shown for each district.

R — Single‑Family Residential (R)

Purpose: Provide for single‑family residential neighborhoods and compatible neighborhood services. § 10‑2.2.101.

Typical permitted uses:

• Single‑family homes, residential care homes, adult day care homes, and small/large family day care (permitted where noted). See the R district land use table. § 10‑2.2.101 and the summary table § 10‑2.2.1901.

Key development controls:

• The R district cross‑references the Property Development Regulations for accessory structures and other dimensional rules (see Sec. 10‑2.2.703 referenced in the R table for accessory structures). Actual numeric setbacks/lot coverage are in the Property Development Regulations; the R article indicates limitations and special additional regulations. § 10‑2.2.101; accessory structures reference Sec. 10‑2.2.703.

Where it applies:

• Standard single‑family neighborhoods mapped R on the Zoning Map (see the City’s zoning map and the R article). § 10‑2.2.101.

Practical note: Accessory Dwelling Units (ADUs) are separately regulated (Part III, Article 5); check the ADU article for ministerial rules that frequently override local discretionary review. See Part III Article 5 (commencing at § 10‑2.3.501).

M‑U — Mixed Use Planned Development (M‑U) (Golden Triangle)

Purpose: Encourage integrated high‑intensity office and residential uses with ground‑floor retail in the Golden Triangle. New development generally requires a Planned Development Permit. § 10‑2.2.901.

Typical permitted/conditional approach:

• Uses allowed in a P‑D permit consistent with the Mixed Use – Golden Triangle General Plan designation. Existing buildings without a P‑D are governed by interim use rules (see § 10‑2.2.903 and § 10‑2.2.902). § 10‑2.2.901–902.

Key controls:

• Planned Development Permit required for new projects; interim uses allowed for existing buildings until a P‑D is approved. § 10‑2.2.901–903.

Where it applies:

• The Golden Triangle / BART‑adjacent area identified in the ordinance. § 10‑2.2.901.

MU‑C — Commercial Mixed Use (MU‑C)

Purpose: Promote medium‑ to high‑intensity commercial and residential development in the Core Area with pedestrian orientation and retail at street level. § 10‑2.2.2101.

Typical permitted uses:

• Ground‑floor retail and restaurants encouraged; upper‑floor office and residential are appropriate. The MU‑C land‑use table lists residential and commercial uses and marks many as permitted (P) or limited (L) depending on context; ADUs are explicitly listed as permitted in MU‑C (see § 10‑2.2.2102).

Key controls:

• Uses may be subject to additional limitations (e.g., Core Area frontage limits are referenced elsewhere in the land‑use tables). Planned-development rules or special Core Area rules may apply. § 10‑2.2.2101–2102.

Where it applies:

• Core Area and downtown commercial mixed‑use sites shown on the zoning map and the ordinance’s MU‑C article. § 10‑2.2.2101.

O‑C — Office Commercial (O‑C)

Purpose: Areas for business and professional office uses with related institutional uses; Core Area allows ground floor retail in multistory office buildings. § 10‑2.2.801.

Typical uses:

• Professional offices, some ground‑floor retail in the Core Area, and business support services. § 10‑2.2.801–802.

Key controls:

• Use table lists permitted/conditional uses; Core Area special allowances for ground‑floor retail are noted. § 10‑2.2.801–802.

B‑P — Business Park (B‑P)

Purpose: Support administrative, medical, research, and office uses in Shadelands Business Park with amenities for employees. § 10‑2.2.1201.

Typical uses:

• Office, medical, research, limited light industrial, campus‑style employers; accessory personal services and restaurants are allowed to serve employees. § 10‑2.2.1201–1202.

Key controls:

• Uses in the B‑P use table are marked P, L, or U and include references to the Property Development Regulations for accessory structures and dimensional standards. § 10‑2.2.1202.

H‑P‑D — Hillside Planned Development (H‑P‑D)

Purpose: Preserve the character of hillside/open space areas; limit density and minimize grading and visual impacts. § 10‑2.2.501.

Typical restrictions:

• No new uses except by P‑D permit or ministerial review; maximum density one dwelling unit per ten (10) acres on Open Space/Agriculture lands. § 10‑2.2.502–503.

Key controls:

• Slope protections, ridgeline restrictions, and limits on grading/tree removal are stated; interim uses are allowed only under ministerial review. § 10‑2.2.501–504.

P‑D — Planned Development (P‑D)

Purpose: Allow flexible design for comprehensive developments that must nevertheless conform to the General Plan and applicable Specific Plans. § 10‑2.2.1702–1707.

Typical approach:

• When a P‑D is approved the P‑D permit itself sets the allowed uses and development standards for that site; accessory dwelling units are still permitted where the P‑D allows single‑ or multiple‑family uses (ADUs remain subject to the ADU article). § 10‑2.2.1704–1707.

Key controls:

• Applications must include site plans, elevations, contour maps, and use designations; P‑D approval establishes the zoning for the area and may set site‑specific setbacks/heights/density. § 10‑2.2.1705–1707.

O‑S‑R — Open Space / Recreation (O‑S‑R)

Purpose: Identify public parks, recreation areas, and preserves; allow appropriate recreational and supportive commercial uses. § 10‑2.2.1401–1402.

Typical uses:

• Parks, recreational facilities, public uses, and selected supportive commercial services; ADUs and certain family day care uses are listed as permitted in the table. § 10‑2.2.1402.

Key controls:

• Land use table indicates allowed commercial/residential uses and cross‑references additional regulations. § 10‑2.2.1402.

Quick decision table (high‑value items)

Checklist

• Confirm the parcel's zoning designation on the City Zoning Map and read that district article (e.g., R, M‑U, MU‑C, O‑C, B‑P, H‑P‑D, P‑D, O‑S‑R) — consult the land‐use table § 10‑2.2.1901.
• Determine if the proposed use is P, L, U, or N in the summary table — § 10‑2.2.1901.
• If a CUP or Planned Development is indicated, prepare to meet the requirements in § 10‑2.2.1704–1707 (P‑D) or the CUP procedures in Part IV; check § 10‑2.2.901 for M‑U specifics.
• Pull applicable numeric development controls (setbacks, height, lot coverage, FAR) from the Property Development Regulations and the district article (see development standards and referenced subsections).
• Calculate off‑street parking using the municipal parking table and verify loading requirements.
• For hillside parcels check H‑P‑D density and slope protections; prepare analysis for ridgeline/tree protections if applicable. § 10‑2.2.501–504.
• If in the Core Area / MU‑C, prepare ground‑floor activation and retail responses per § 10‑2.2.2101–2102.
• Verify whether design review or historic review applies; the Planning Agency and Design Review Commission roles are defined in § 10‑2.4.101.
• If proposing an ADU, follow the ADU article (Part III, Article 5) and the ADU ministerial rules referenced in P‑D and district articles.

Risks & Ambiguities

Plain‑English Summary

Walnut Creek’s zoning code controls what you can put on a lot by (1) assigning the lot to a district (R, MU‑C, O‑C, M‑U, B‑P, H‑P‑D, etc.), (2) using the city’s Land Use Summary Table (P/L/U/N) to say whether a use is permitted, limited, or requires a Conditional Use Permit (CUP), and (3) deferring numeric setbacks/coverage to the Property Development Regulations or to a Planned Development permit when applicable. Always check the district article and the summary table first — e.g., H‑P‑D caps density at 1 du / 10 acres and M‑U and many Core Area parcels require a P‑D. § 10‑2.2.1901, § 10‑2.2.503, § 10‑2.2.901.

Information Gaps

What I could not confirm from the retrieved materials:

• Parcel‑specific numeric setback, frontage, lot coverage, and height standards for many base zones (the district articles point to Property Development Regulations rather than listing numbers). Not found in retrieved materials; verify with the City’s Property Development Regulations and specific district development tables.
• Full text of the complete land use matrix rows for every use (the summary table is present but some cells and notes are truncated in the retrieved snippets). For parcel‑level determinations, request the full published ordinance PDF or contact the Planning Division.
• Any amendments or administrative interpretive rules implemented after the code snapshot contained in the uploaded documents. Verify with the City Clerk or the Community Development Department. Not found in retrieved materials.

Source References

• Walnut Creek Zoning Ordinance — Single‑Family Residential district text: § 10‑2.2.101.
• Walnut Creek Zoning Ordinance — Hillside Planned Development: § 10‑2.2.501–504 (density and interim use provisions).
• Walnut Creek Zoning Ordinance — Mixed Use Planned Development (M‑U): § 10‑2.2.901–903.
• Walnut Creek Zoning Ordinance — Commercial Mixed Use (MU‑C): § 10‑2.2.2101–2102.
• Walnut Creek Zoning Ordinance — Business Park (B‑P): § 10‑2.2.1201–1202.
• Walnut Creek Zoning Ordinance — Planned Development rules: § 10‑2.2.1702–1707.
• Walnut Creek Zoning Ordinance — Summary Table of Use Regulations: § 10‑2.2.1901 (land use matrix).
• Parking table and off‑street parking ratios extracted from the ordinance Parking/Loading tables.
• Accessory Dwelling Unit authority / reference: Part III, Article 5 (commencing at § 10‑2.3.501).
• Planning Agency and Design Review roles: § 10‑2.4.101.

(if you need direct links to the city web pages or the full ordinance PDF version, request the specific PDF or a parcel APN and I will pull the exact code extract for the lot)

Retrieved passages

• Walnut Creek Zoning Code (Article 14) High relevance show source text
• Walnut Creek Zoning Code (Article 14) High relevance show source text
• Walnut Creek Zoning Code (Article 14) High relevance show source text
• Walnut Creek Zoning Code (Section 10-2.3.1702) High relevance show source text
• Walnut Creek Zoning Code (CHAPTER 12.) High relevance show source text
• Walnut Creek Zoning Code (Article 12.) Medium relevance show source text
• Walnut Creek Zoning Code (Section 21000) Medium relevance show source text
• Walnut Creek Zoning Code (§2) Medium relevance show source text

Cited sections

• Walnut Creek Zoning Ordinance — Single‑Family Residential district text: **§ 10‑2.2.101**. (§ 10)
• Walnut Creek Zoning Ordinance — Hillside Planned Development: **§ 10‑2.2.501–504** (density and interim use provisions). (§ 10)
• Walnut Creek Zoning Ordinance — Mixed Use Planned Development (M‑U): **§ 10‑2.2.901–903**. (§ 10)
• Walnut Creek Zoning Ordinance — Commercial Mixed Use (MU‑C): **§ 10‑2.2.2101–2102**. (§ 10)
• Walnut Creek Zoning Ordinance — Business Park (B‑P): **§ 10‑2.2.1201–1202**. (§ 10)
• Walnut Creek Zoning Ordinance — Planned Development rules: **§ 10‑2.2.1702–1707**. (§ 10)
• Walnut Creek Zoning Ordinance — Summary Table of Use Regulations: **§ 10‑2.2.1901** (land use matrix). (§ 10)
• Parking table and off‑street parking ratios extracted from the ordinance Parking/Loading tables.
• Accessory Dwelling Unit authority / reference: Part III, Article 5 (commencing at **§ 10‑2.3.501**). (Article 5)
• Planning Agency and Design Review roles: **§ 10‑2.4.101**. (§ 10)
• WalnutCreek_ZoningCode.md

• Official Walnut Creek code library