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Sec. 49.19. - Development standards.

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

A junior accessory dwelling unit permit shall be issued only if the unit complies with the following development standards:

(a)

Maximum floor area. The junior accessory dwelling unit shall not exceed five hundred square feet in total floor area.

(b)

Existing development. The junior accessory dwelling unit shall be contained entirely within the existing walls of an existing or proposed single-family dwelling, which includes the walls of an attached garage. However, an additional one hundred fifty square feet is permitted to allow for a separate entrance into the unit.

(c)

Kitchen. The junior accessory dwelling unit must contain an efficiency kitchen as defined by the Government Code Section 66333(f)(1) and (f)(2)

(d)

Sanitation. Bathroom facilities may be separate from or shared with the single-family dwelling. A separate bathroom facility shall be provided if the junior accessory dwelling unit does not include an interior entry into the primary residence.

(e)

Entrance. The junior accessory dwelling unit shall include an exterior entrance separate from the main entrance to the single-family dwelling. The junior accessory dwelling unit may include a second interior doorway for sound attenuation.

(f)

Parking. Off-street parking shall not be required for junior accessory dwelling units. No replacement offstreet parking spaces are required when a junior accessory dwelling unit is created through the conversion or demolition of an attached garage, carport or covered parking structure.

(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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