Skip to content
ChatProjectCodes

Sec. 49.06. - Accessory development standards.

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

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

(a)

General.

a.

No development standards shall be applied that would prohibit up to an eight hundred square foot accessory dwelling unit that is no more than sixteen feet in height with four-foot side and four-foot rear setbacks to be constructed in compliance with all other local development standards.

(b)

Setbacks.

a.

Single-family residential districts including single-family planning department zone districts. An accessory dwelling unit shall comply with the following setback requirements:

i.

A new attached or detached eight hundred square foot accessory dwelling unit shall provide a minimum four-foot side and four-foot rear setback, and a front setback consistent with that of the primary dwelling unit in a standard zoning district. An eight hundred square foot accessory dwelling unit that complies with all other development standards may be built within the front yard setback of a lot if it is otherwise physically infeasible to build an accessory dwelling unit on other areas of the lot while maintaining the minimum rear and side yard setbacks outlined in this subsection. Side-corner setbacks shall be a minimum of four feet.

b.

Multifamily districts including multifamily districts. An accessory dwelling unit shall comply with the following setback requirements:

i.

A new attached or detached accessory dwelling unit shall provide a minimum four-foot side and four-foot rear setback. The front setback shall be consistent with a primary dwelling unit in the applicable standard zoning district, or the most similar standard zoning district. Side-corner setbacks shall be a minimum of eight feet.

c.

If the existing multifamily dwelling exceeds height requirements or has a rear or side setback of less than four feet, the department shall not require modification of the existing multifamily dwelling as a condition of approving the application to construct an accessory dwelling unit.

(c)

No setback shall be required for an existing legally constructed living area, garage, or other accessory structure that is converted to an accessory dwelling unit with independent exterior access from an existing or proposed residence. A setback of five feet from the side and rear property lines is required for an accessory dwelling unit constructed above an existing legally constructed or proposed garage.

(d)

Any new attached accessory dwelling unit, detached accessory dwelling unit or expansion of the singlefamily dwelling to support the internal conversion for an accessory dwelling shall be designed to maintain appropriate setbacks, as described in subsection B (a) and (b) above, from the future width of any abutting public streets. Future street configurations shall be based on the widths, standards and right-of-way lines in the circulation element of the City of Colusa General Plan or specifically addressed in a resolution adopted by the city council.

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

Get a plain-English answer with a citation back to this text.

Ask AI about this code
Export this section
▸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.

GoCodebook provides public access, search, citation, multilingual explanation, and practical interpretation of legally adopted building regulations. It is not a substitute for the official ICC or California code publications.