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Part II — BASE DISTRICT REGULATIONS

Article 18 — Overlay District (O)

Walnut Creek Zoning Code · 2026-06 edition · updated 2026-07-07 · Walnut Creek

10-2.2.1801 Purpose.

The purpose of the overlay zoning district is to allow for additional control on an individual lot or a group of lots that will supersede the requirements of the underlying zone.

The overlay zoning classification will primarily be used for the following reasons:

  • A. To allow for flexibility from the normal requirements of the underlaying zone;

  • B. To ensure the preservation of specific feature(s) subject to the site(s);

  • C. To ensure the preservation of the character of the area in proximity to the subject site(s).

10-2.2.1802 Regulations.

When the overlay zone is imposed, the City shall enact specific criteria and standards for the development of the lot or lots in question.

10-2.2.1803 Transfer of Duties.

Whenever any Overlay Zone, created prior to the effective date of the enabling ordinance for this section, pursuant to the provisions of this title, contains a reference to the City Council as the Design Review Authority, such review shall be conducted by the Planning Commission pursuant to the provisions of Part IV, Article 12, Design Review. (§4, Ord. 2239, eff. 7/5/24)

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The Walnut Creek Municipal Code is current through Ordinance 2251, passed August 16, 2025.

Disclaimer: The City Clerk's Office has the official version of the Walnut Creek

10-2.2.1901

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▸ Contents — Walnut Creek Zoning Code
Walnut Creek Zoning Code
  1. 10-1.101 Citation and Authority.
  2. 10-1.102 Purpose.
  3. 10-1.103 Conformity to General Plan, Specific Plans and Zoning…
  4. 10-1.104 Application.
  5. 10-1.105 Modification of Requirements.
  6. 10-1.201 Definitions.
  7. 10-1.202 Responsibilities.
  8. 10-1.301 General.
  9. 10-1.302 Division of Land—Five or More Parcels.
  10. 10-1.303 Division of Land—Four or Fewer Parcels. (Minor Subdiv…
  11. 10-1.304 Plat Maps.
  12. 10-1.305 Fees and Deposits.
  13. 10-1.402 Tentative Maps.
  14. 10-1.403 Final Maps.
  15. 10-1.501 Tentative Parcel Map.
  16. 10-1.502 Parcel Maps.
  17. 10-1.503 Waiver of Parcel Map Requirements.
  18. 10-1.601 Dedication of Streets, Alleys and Other Public Rights…
  19. 10-1.602 Park Land Dedication.
  20. 10-1.603 School Site Dedication.
  21. 10-1.604 Reservations.
  22. 10-1.605 Claims of Excessive Dedications.
  23. 10-1.701 Purpose.
  24. 10-1.702 Requirements and Procedures.
  25. 10-1.703 Physical Standards for Condominium Conversions.
  26. 10-1.704 Tenant Provisions.
  27. 10-1.705 Effect of Proposed Conversion on the City's Low- and …
  28. 10-1.706 Findings.
  29. 10-1.801 General.
  30. 10-1.802 Improvements Required.
  31. 10-1.803 Deferred Improvement Agreements.
  32. 10-1.804 Design.
  33. 10-1.805 Access.
  34. 10-1.806 Improvement Plans.
  35. 10-1.807 Improvement Agreement.
  36. 10-1.808 Improvement Security.
  37. 10-1.809 Construction.
  38. 10-1.810 Construction Inspection.
  39. 10-1.811 Completion of Improvements.
  40. 10-1.812 Acceptance of Improvements.
  41. 10-1.813 Supplemental Improvement Capacity.
  42. 10-1.901 General.
  43. 10-1.902 Initiation of Proceedings.
  44. 10-1.903 Contents of Petition.
  45. 10-1.904 Submittal of Petition to City Engineer.
  46. 10-1.905 City Council Approval.
  47. 10-1.906 Filing with County Recorder.
  48. 10-1.1001 Mergers not Required.
  49. 10-1.1002 Mergers Required.
  50. 10-1.1003 Notice of Intention to Determine Status.
  51. 10-1.1004 Hearing on Determination of Status.
  52. 10-1.1005 Determination of Merger.
  53. 10-1.1006 Determination When No Hearing is Requested.
  54. 10-1.1007 Request to Merge by Property Owner.
  55. 10-1.1008 Unmerged Parcels.
  56. 10-1.1009 Request for Determination by Owner.
  57. 10-1.1010 Fee for Mergers and Unmergers.
  58. 10-1.1101 Requirements.
  59. 10-1.1102 Form and Contents.
  60. 10-1.1103 Submittal and Approval by the City Engineer.
  61. 10-1.1104 Filing with the County Recorder.
  62. 10-1.1105 Fee.
  63. 10-1.1201 Citation and Authority.
  64. 10-1.1202 Purpose and Intent.
  65. 10-1.1203 Consistency.
  66. 10-1.1204 Definitions.
  67. 10-1.1205 Application.
  68. 10-1.1206 Filing and Processing.
  69. 10-1.1207 Expiration.
  70. 10-1.1208 Vesting on Approval of Vesting Tentative Map.
  71. 10-1.1209 Development Inconsistent with Zoning—Conditional App…
  72. 10-1.1210 Applications Inconsistent with Current Policies.
  73. 10-1.1211 Failure to Obtain Design Review Approval.
  74. 10-1.1301 Prohibition.
  75. 10-1.1302 Remedies.
  76. 10-1.1303 Certificate of Compliance.
  77. 10-1.1304 Notice of Violation.
  78. 10-1.1305 Penalties.
  79. 10-1.1306 Judicial Action.
  80. 10-1.1401 Purpose.
  81. 10-1.1402 Applicability—Ministerial Approval.
  82. 10-1.1403 Exceptions.
  83. 10-1.1404 Definitions.
  84. 10-1.1405 Urban Lot Split Requirements.
  85. Chapter 2
  86. Part I — GENERAL PROVISIONS
  87. ▸ Part II — BASE DISTRICT REGULATIONS
    Overview
    1. Article 1 — Single-Family Residential District (R)
    2. Article 2 — Duplex Residential District (D-3)
    3. Article 3 — Multiple Family Residential Districts (M)
    4. Article 4 — High Density Residential Planned Development Distr…
    5. Article 5 — Hillside Planned Development District (H-P-D)
    6. Article 6 — Pedestrian Retail District (P-R)
    7. Article 7 — Central Retail District (C-R)
    8. Article 8 — Office Commercial District (O-C)
    9. Article 9 — Mixed Use Planned Development District (M-U)
    10. Article 10 — Automobile Sales/Service and Custom Manufacturing…
    11. Article 11 — Service Commercial District (S-C)
    12. Article 12 — Business Park District (B-P)
    13. Article 13 — Community Commercial District (C-C)
    14. Article 14 — Open Space/Recreation District (O-S-R)
    15. Article 15 — Community Facility District (C-F)
    16. Article 16 — Hospital Planned Development District (HO P-D)
    17. Article 17 — Planned Development District (P-D)
    18. Article 18 — Overlay District (O)
    19. Article 19 — Summary of Use Regulations
    20. Article 20 — Single-Family High-Planned Development District 1…
    21. Article 21 — Commercial Mixed Use District (MU-C)
    22. Article 22 — Residential Mixed Use District (MU-R)
    23. Article 23 — Downtown Mixed Use District (MU-D)
  88. Part III — REGULATIONS APPLYING IN ALL OR SEVERAL DISTRICTS Re…
  89. Part IV — ADMINISTRATION

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