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Sec. 49.04. - Accessory dwelling units—Application and processing requirements.

Colusa County Zoning Code · 2026-06 edition · updated 2026-09-09 · Colusa County

(a)

Step One—Submittal. The application for an accessory dwelling unit permit shall be submitted to the department concurrent with an application for a building permit. In addition to the standard submittal requirements for a building permit, an application for an accessory dwelling unit permit shall include all of the following (except as noted below):

a.

Plot plan. A plot plan, drawn to scale, showing the dimensions of the perimeter of the parcel proposed for the accessory dwelling unit; the location and dimensioned setbacks of all existing and proposed structures on the site and structures located within fifty feet of the site; all easements, building envelopes, and special requirements of the subdivision as shown on the final map and improvement plans, if any; and average slope calculations for the site.

b.

Floor plan. A floor plan, drawn to scale, showing the dimensions of each room, and the resulting floor area. The use of each room shall be identified, and the size and location of all windows and doors shall be clearly shown.

c.

Elevations. Architectural elevations of each side of the proposed structure showing all wall height dimensions, openings, exterior finishes (including siding and window materials), original and finish grades, paint color, and roof pitch. The color of the existing or proposed primary residence shall be included if necessary to demonstrate compliance with section 49.09.a, below. Applications for accessory dwelling units which do not modify a building's exterior are not required to submit elevations per this subsection c.

(b)

Step Two—Decision. The department shall approve or deny an application for an accessory dwelling unit permit within sixty days of submittal of a complete application. The accessory dwelling unit permit shall be issued only if the proposed accessory dwelling unit complies with all applicable standards in this section.

(Ord. No. 568, 5-20-2025)

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▸Contents — Colusa County Zoning Code
Colusa County Zoning Code
  1. Sec. 1.01. - Findings.
  2. Sec. 1.02. - Adoption.
  3. Sec. 1.03. - Short title.
  4. Sec. 1.04. - Purpose of the plan.
  5. Sec. 1.05. - Effect of the plan.
  6. Sec. 1.06. - Application.
  7. Sec. 2.01. - Zoning districts.
  8. Sec. 2.02. - Special combining districts.
  9. Sec. 3.01. - Adoption of zoning map.
  10. Sec. 3.02. - Interpretation of zone boundaries.
  11. Sec. 3.03. - Amendments to zoning map.
  12. Sec. 5.01. - Regulations generally.
  13. Sec. 5.02. - Uses permitted.
  14. Sec. 5.03. - Uses requiring major use permits (planning commis…
  15. Sec. 5.04. - Uses requiring minor use permits (planning direct…
  16. Sec. 5.05. - Minimum height, bulk and space requirements.
  17. Sec. 6.01. - Regulations generally.
  18. Sec. 6.02. - Uses permitted.
  19. Sec. 6.03. - Uses requiring major use permits (planning commis…
  20. Sec. 6.04. - Uses requiring minor use permits (planning direct…
  21. Sec. 6.05. - Minimum height, bulk and space requirements.
  22. Sec. 7.01. - Regulations generally.
  23. Sec. 7.02. - Uses permitted.
  24. Sec. 7.03. - Uses requiring major use permits (planning commis…
  25. Sec. 7.04. - Uses requiring minor use permits (planning direct…
  26. Sec. 7.05. - Minimum height, bulk and space requirements
  27. Sec. 8.01. - Regulations generally.
  28. Sec. 8.02. - Uses permitted.
  29. Sec. 8.03. - Uses requiring a major use permit (planning commi…
  30. Sec. 8.04. - Uses requiring a minor use permit (planning direc…
  31. Sec. 8.05. - Minimum height, bulk and space requirements.
  32. Sec. 9.01. - Regulations generally.
  33. Sec. 9.02. - Uses permitted.
  34. Sec. 9.03. - Minimum height, bulk and space requirements.
  35. Sec. 10.01. - Regulations generally.
  36. Sec. 10.02. - Uses permitted.
  37. Sec. 10.03. - Minimum height, bulk and space requirements.
  38. Sec. 11.01. - Regulations generally.
  39. Sec. 11.02. - Uses permitted.
  40. Sec. 11.03. - Uses requiring use permits (major).
  41. Sec. 11.04. - Minimum height, bulk and space requirements.
  42. Sec. 12.01. - Regulations generally.
  43. Sec. 12.02. - Uses permitted.
  44. Sec. 12.03. - Minimum height, bulk and space requirements.
  45. Sec. 13.01. - Regulations generally.
  46. Sec. 13.02. - Uses permitted.
  47. Sec. 13.03. - Uses requiring use permits (major).
  48. Sec. 13.04. - Minimum height, bulk and space requirements.
  49. Sec. 14.01. - Purpose of the district.
  50. Sec. 14.02. - Regulations generally.
  51. Sec. 14.03. - Uses permitted.
  52. Sec. 14.04. - Minimum height, bulk and space requirements.
  53. Sec. 15.01. - Regulations generally.
  54. Sec. 15.02. - Available locations.
  55. Sec. 15.03. - Application for establishment.
  56. Sec. 15.04. - Uses Permitted.
  57. Sec. 15.05. - Building height limit.
  58. Sec. 15.06. - Building site area required.
  59. Sec. 15.07. - Front, side and rear yards and percentage of sit…
  60. Sec. 15.08. - Variances.
  61. Sec. 16.01. - Purpose of district.
  62. Sec. 16.02. - Regulations generally.
  63. Sec. 17.01. - Purpose of district.
  64. Sec. 17.02. - Regulations generally.
  65. Sec. 18.01. - Purpose of district.
  66. Sec. 18.02. - Regulations generally.
  67. Sec. 19.01. - Regulations generally.
  68. Sec. 19.02. - Uses permitted.
  69. Sec. 19.03. - Uses requiring use permit (major):
  70. Sec. 19.04. - Special yards and distances between buildings.
  71. Sec. 20.01. - Regulations generally.
  72. Sec. 20.02. - Special regulations.
  73. Sec. 21.01. - Regulations generally.
  74. § 21.5
  75. § 21.05
  76. Sec. 22.01. - Regulations generally.
  77. Sec. 22.02. - Special regulations.
  78. Sec. 23.01. - Regulations generally.
  79. Sec. 23.02. - Special provisions.
  80. Sec. 24.01. - Special height regulations.
  81. Sec. 25.01. - Regulations generally.
  82. Sec. 25.02. - Minimum parking and loading requirements.
  83. Sec. 25.03. - Location of spaces; execution of restrictions an…
  84. Sec. 25.04. - Loading space requirements.
  85. Sec. 26.01. - May be used in "R-2" district.
  86. Sec. 26.02. - Additional provisions.
  87. Sec. 27.01. - Purpose.
  88. Sec. 27.02. - Definitions.
  89. Sec. 27.03. - Special regulations.
  90. Sec. 27.04. - Amortization of nonconforming adult-oriented bus…
  91. Sec. 28.01. - Purpose.
  92. Sec. 28.02. - Fire zone two.
  93. Sec. 28.03. - Fire zone three.
  94. Sec. 28.04. - Zone subject to provisions of building code.
  95. Sec. 28.05. - Fire zone designations.
  96. Sec. 29.01. - Parking requirements.
  97. Sec. 29.02. - General conditions modifying minimum off-street …
  98. Sec. 29.03. - Off-street parking requirements for general serv…
  99. Sec. 29.04. - Minimum parking specifications.
  100. Sec. 30.01. - Purposes.
  101. Sec. 30.02. - Establishment; powers; duties.
  102. Sec. 30.03. - Definitions.
  103. Sec. 30.04. - Designation of landmarks and historic districts.
  104. Sec. 30.05. - Alterations or relocation affecting a designated…
  105. Sec. 30.06. - Demolition or removal affecting a designated his…
  106. Sec. 30.07. - Criteria for designation of historic districts, …
  107. Sec. 30-08. - Applicability and enforcement.
  108. Sec. 30.09. - Appeals procedure.
  109. Sec. 31.01. - Purpose and applicability.
  110. Sec. 31.02. - Permits and fees.
  111. Sec. 31.03. - Types of signs.
  112. Sec. 31.04. - Prohibited signs.
  113. Sec. 31.05. - Nonconforming signs.
  114. Sec. 32.01. - Applicability of article.
  115. Sec. 32.02. - Rules governing use of zoning map and symbols.
  116. Sec. 32.03. - Regulations are minimum.
  117. Sec. 32.04. - Relationship to other regulations and to private…
  118. Sec. 32.05. - Additional uses permitted.
  119. Sec. 32.06. - Building sites, areas and easements.
  120. Sec. 32.07. - Yards.
  121. Sec. 32.08. - Height exceptions.
  122. Sec. 32.09. - Exceptions—District agricultural association.
  123. Sec. 32.10. - Foundations and floor slabs of buildings in rela…
  124. Sec. 32.11. - Reserved.
  125. Sec. 33.01. - Major use permits.
  126. Sec. 33.02. - Minor or administrative use permits.
  127. Sec. 33.03 - Cannabis and cannabis dispensary special use perm…
  128. Sec. 34.01. - Variances.
  129. Sec. 35.01. - Continuation of existing nonconforming uses.
  130. Sec. 35.02. - Changes from one nonconforming use to another.
  131. Sec. 35.03. - Alteration, reconstruction, etc., of nonconformi…
  132. Sec. 35.04. - Nonconforming buildings destroyed by fire, etc.
  133. Sec. 35.05. - Nonconforming uses in subsequently changed or es…
  134. Sec. 36.01. - Generally.
  135. Sec. 37.01. - Issuance of licenses and permits to comply with …
  136. Sec. 37.02. - Enforcement of ordinance.
  137. Sec. 37.03. - Violations.
  138. Sec. 37.04. - Enforcement by legal proceedings.
  139. Sec. 37.05. - Remedies cumulative.
  140. Sec. 38.01. - Generally.
  141. Sec. 39.01. - Statutory authorization, findings of fact, purpo…
  142. Sec. 39.02. - Definitions.
  143. Sec. 39.03. - General provisions.
  144. Sec. 39.04. - Administration.
  145. Sec. 39.05. - Provisions for flood hazard reduction.
  146. Sec. 39.06. - Variance and appeals.
  147. Sec. 40.01. - Dedication of lands for park and recreational pu…
  148. Sec. 41.01. - Encouragement of affordable housing.
  149. Sec. 41.02. - Implementation.
  150. Sec. 41.03. - Eligibility for density bonus, incentives or con…
  151. Sec. 41.04. - Allowed incentives or concessions.
  152. Sec. 41.05. - Processing of bonus requests.
  153. Sec. 41.06. - Density bonus agreement.
  154. § 41.5
  155. Sec. 42.01. - Purpose.
  156. Sec. 42.02. - Uses permitted.
  157. Sec. 42.03. - Uses requiring major use permits (planning commi…
  158. Sec. 42.04. - Uses requiring minor use permits (planning direc…
  159. Sec. 42.05. - Special regulations.
  160. Sec. 43.01. - Purpose.
  161. Sec. 43.02. - Applicability.
  162. Sec. 43.03. - Application requirements.
  163. Sec. 43.04. - Review authority.
  164. Sec. 43.05. - Review procedure.
  165. Sec. 43.06. - Findings and decision.
  166. Sec. 43.07. - Appeal of determination.
  167. Sec. 44.01. - Purposes.
  168. Sec. 44.02. - Uses permitted.
  169. Sec. 44.03. - Minimum height, bulk, and space requirements.
  170. Sec. 44.04. - Indoor/outdoor operations.
  171. Sec. 44.05. - Floor-to-ceiling heights and floor area of groun…
  172. Sec. 44.06. - Floor area ratio.
  173. Sec. 44.07. - Transparency.
  174. Sec. 44.08. - Doors and entrances.
  175. Sec. 47.01. - Purposes.
  176. Sec. 47.02. - Uses permitted.
  177. Sec. 47.03. - Minimum height, bulk, and space requirements.
  178. Sec. 47.04. - Indoor/outdoor operations.
  179. Sec. 47.05. - Floor-to-ceiling heights and floor area of groun…
  180. Sec. 47.06. - Floor area ratio.
  181. Sec. 47.07. - Transparency.
  182. Sec. 47.08. - Doors and entrances.
  183. Sec. 49.01. - General requirements.
  184. Sec. 49.04. - Accessory dwelling units—Application and process…
  185. Sec. 49.05. - Utility connections and fees.
  186. Sec. 49.06. - Accessory development standards.
  187. Sec. 49.07. - Maximum floor area.
  188. Sec. 49.08. - Height limit.
  189. Sec. 49.09. - Lot coverage.
  190. Sec. 49.10. - Architectural objective.
  191. Sec. 49.11. - Number per lot.
  192. Sec. 49.12. - Parking.
  193. Sec. 49.13 - Standards for proposed accessory structures attac…
  194. Sec. 49.14. - General requirements.
  195. Sec. 49.17. - Application and processing requirements.
  196. Sec. 49.18. - Utility connection fees.
  197. Sec. 49.19. - Development standards.
  198. Sec. 49.20. - Deed restrictions.

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