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SEC. 182. NONCONFORMING USES: CHANGES OF USE.

San Francisco County Zoning Code · 2026-06 edition · updated 2026-07-25 · San Francisco County

(See Interpretations related to this Section.)

The following provisions shall apply to nonconforming uses with respect to changes of use:

(a) A nonconforming use shall not be changed or modified so as to increase the degree of nonconformity under the use limitations of this Code, with respect to the type of use or its intensity except as provided in Section 181 for Nighttime Entertainment uses within the MUG, or MUR Districts. The degree of nonconformity shall be deemed to be increased if the new or modified use is less widely permitted by the use districts of the City than the nonconforming use existing immediately prior thereto. For purposes of this Section, intensification of a Formula Retail use as defined in Section 178(c) is determined to be a change or modification that increases the degree of nonconformity of the use.

(b) Except as limited in this subsection, a nonconforming use may be reduced in size, extent or intensity, or changed to a use that is more widely permitted by the use districts of the City than the existing use, subject to the other applicable provisions of this Code. Except as otherwise provided herein, the new use shall still be classified as a nonconforming use.

(1) Nonconforming Commercial and Industrial uses in a Residential or Residential Enclave District shall be subject to the requirements of Section 186.

(2) A nonconforming use in a Neighborhood Commercial District may be changed to another use as provided in Subsections (c) and (d) below or as provided in Section 186.1 of this Code.

(c) A nonconforming use may be changed to a use listed as a conditional use for the district in which the property is located, only upon approval of a Conditional Use application pursuant to the provisions of Article 3 of this Code, and the new use may thereafter be continued as a permitted conditional use, subject to the limitation of Section 178(b) of this Code.

(d) A nonconforming use may be changed to a use listed as a principal use for the district in which the property is located, subject to the other applicable provisions of this Code, and the new use may thereafter be continued as a permitted principal use.

(e) A nonconforming use may be converted to a Dwelling Unit and to two or more Dwelling Units with Conditional Use authorization, in a district where such use is principally permitted, without regard to the requirements of this Code with respect to residential density or required off-street parking, and the Zoning Administrator may provide relief from certain other standards specified in Section 307(h) through the procedures of that Section, provided the nonconforming use is eliminated by such conversion, provided further that the structure is not enlarged, extended or moved to another location, and provided further that the requirements of the Building Code, the Housing Code and other applicable portions of the Municipal Code are met.

ef from certain other standards specified in Section 307(h) through the procedures of that Section, provided the nonconforming use is eliminated by such conversion, provided further that the structure is not enlarged, extended or moved to another location, and provided further that the requirements of the Building Code, the Housing Code and other applicable portions of the Municipal Code are met.

(f) Once a nonconforming use has been changed to a principal or Conditional Use permitted in the district in which the property is located, or brought closer in any other manner to conformity with the use limitations of this Code, the use of the property may not thereafter be returned to its former nonconforming status. Upon restoration of a previous nonconforming use as permitted above, any modification, enlargement, extension, or change of use, from circumstances that last lawfully existed prior to the change from office use, shall be subject to the provisions of this Article, and the restored nonconforming use shall be considered to have existed continuously since its original establishment, prior to the change to Office use, for purposes of this Article.

(g) If a nonconforming use has been wrongfully changed to another use in violation of any of the foregoing provisions, and the violation is not immediately corrected when required by the Zoning Administrator, the wrongful change shall be deemed to be a discontinuance or abandonment of the nonconforming use under Section 183 of this Code.

(h) If a nonconforming use is a Formula Retail use in a District that prohibits Formula Retail uses, the Formula Retail use is deemed abandoned if it is discontinued for a period of 18 months or more, or otherwise abandoned. The Formula Retail use shall not be restored.

(1) Change of one nonconforming Formula Retail use to another Formula Retail use that is determined to not be an enlargement or intensification of use, as defined in Subsection 178(c), is subject to the Commission's adopted Performance-Based Design Guidelines for Formula Retail, which may be applied and approved administratively by the Planning Department. Non-conformance with the Performance-Based Design Guidelines for Formula Retail as required by the Department may result in termination of the nonconforming Formula Retail use.

(2) Change of one nonconforming Formula Retail use to another Formula Retail use that is determined to be an enlargement or intensification of use, as defined in Subsection 178(c), is not permitted. (Added by Ord. 443-78, App. 10/6/78; amended by Ord. 532-85, App. 12/4/85; Ord. 69-87, App. 3/13/87; Ord. 445-87, 11/12/87; Ord. 412-88, App. 9/10/88; Ord. 115-90, App. 4/6/90; Ord. 62-04, File No. 031501, App. 4/9/2004; Ord. 217-05, File No. 050865, App. 8/19/2005; Ord. 298-08, File No. 081153, App. 12/19/2008; Ord. 42-13 , File No. 130002, App. 3/28/2013, Eff. 4/27/2013; Ord. 232-14 , File No. 120881, App. 11/26/2014, Eff. 12/26/2014; Ord. 235-14 , File No. 140844, App. 11/26/2014, Eff. 12/26/2014; Ord. 22-15, File No. 141253, App. 2/20/2015, Eff. 3/22/2015; Ord. 296-18, File No. 180184, App. 12/12/2018, Eff. 1/12/2019)

AMENDMENT HISTORY

Divisions (a) and (b)(1) amended; former division (f) deleted, former divisions (g) and (h) redesignated (f) and (g) and internal references adjusted accordingly; Ord. 42-13 , Eff. 4/27/2013. Division (b)(1) amended; former divisions (b)(2) and (4) deleted and former divisions (b)(3) and (5) redesignated as (b)(2) and (3); divisions (c), (d), and (e) amended; Ord. 232-14 , Eff. 12/26/2014. Division (a) amended; new division (h) added; Ord. 235-14 , Eff. 12/26/2014. Divisions (e) and (f) amended; Ord. 22-15, Eff. 3/22/2015. Divisions (a), (b), and (f) amended; division (b)(3) deleted; Ord. 296-18, Eff. 1/12/2019.

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Contents — San Francisco County Zoning Code
San Francisco County Zoning Code
  1. SEC. 101. PURPOSES.
  2. SEC. 102. DEFINITIONS.
  3. SEC. 103. HOUSING BALANCE MONITORING AND REPORTING.
  4. SEC. 105. ZONING MAP.
  5. SEC. 106. ZONING MAP INCORPORATED HEREIN.
  6. SEC. 108. NEW NAMES.
  7. SEC. 109. SEVERABILITY.
  8. SEC. 121. MINIMUM LOT WIDTH AND AREA.
  9. SEC. 122. HEIGHT AND BULK LIMITATIONS.
  10. SEC. 123. MAXIMUM FLOOR AREA RATIO.
  11. SEC. 124. BASIC FLOOR AREA RATIO.
  12. SEC. 125. FLOOR AREA PREMIUMS, DISTRICTS OTHER THAN NC, C-3 AN…
  13. SEC. 127. TRANSFER OF PERMITTED BASIC GROSS FLOOR AREA.
  14. SEC. 128. TRANSFER OF DEVELOPMENT RIGHTS IN C-3 DISTRICTS.
  15. SEC. 130. YARD AND SETBACK REQUIREMENTS, GENERAL.
  16. SEC. 131. LEGISLATED SETBACK LINES.
  17. SEC. 132. FRONT SETBACK AREAS IN RTO, RH, AND RM DISTRICTS AND…
  18. SEC. 133. SIDE YARDS, RH-1(D) DISTRICTS.
  19. SEC. 134. REAR YARDS IN R, RC, RTO, NC, M, CMUO, MUG, MUO, MUR…
  20. SEC. 135. USABLE OPEN SPACE FOR DWELLING UNITS AND GROUP HOUSI…
  21. SEC. 136. OBSTRUCTIONS OVER STREETS AND ALLEYS AND IN REQUIRED…
  22. SEC. 137. MODIFICATION OF CERTAIN PLAZAS, ARCADES, AND SIDEWAL…
  23. SEC. 138. PRIVATELY-OWNED PUBLIC OPEN SPACE (POPOS) REQUIREMEN…
  24. SEC. 139. STANDARDS FOR BIRD-SAFE BUILDINGS.
  25. SEC. 140. ALL DWELLING UNITS IN ALL USE DISTRICTS TO FACE ON A…
  26. SEC. 141. SCREENING OF ROOFTOP FEATURES IN R, NC, C, M, WMUG, …
  27. SEC. 142. SCREENING AND GREENING OF PARKING AND VEHICULAR USE …
  28. SEC. 143. RESERVED.
  29. SEC. 144. STREET FRONTAGES IN RH, RTO, AND RM DISTRICTS.
  30. SEC. 145. FRONTAGES, OUTDOOR ACTIVITY AREAS, WALKUP FACILITIES…
  31. SEC. 146. SUNLIGHT ACCESS TO PUBLIC SIDEWALKS IN C-3 DISTRICTS.
  32. SEC. 147. REDUCTION OF SHADOWS ON CERTAIN PUBLIC OR PUBLICLY A…
  33. SEC. 148. REDUCTION OF GROUND-LEVEL WIND CURRENTS FOR BUILDING…
  34. SEC. 149. [REDESIGNATED.]
  35. SEC. 149. BETTER ROOFS; LIVING ROOF ALTERNATIVE.
  36. SEC. 150. OFF-STREET LOADING REQUIREMENTS.
  37. SEC. 151. [REPEALED.]
  38. SEC. 152. SCHEDULE OF REQUIRED OFF-STREET FREIGHT LOADING SPAC…
  39. SEC. 153. RULES FOR CALCULATION OF PARKING SPACES.
  40. SEC. 154. DIMENSIONS FOR OFF- STREET PARKING, FREIGHT LOADING,…
  41. SEC. 155. GENERAL STANDARDS AS TO LOCATION AND ARRANGEMENT OF …
  42. SEC. 156. PARKING LOTS.
  43. SEC. 157.1. [REPEALED.]
  44. SEC. 158. [REPEALED.]
  45. SEC. 159. [REPEALED.]
  46. SEC. 161. EXEMPTIONS AND EXCEPTIONS FROM OFF-STREET PARKING, F…
  47. SEC. 162. TOUR BUS LOADING SPACES IN C-3 DISTRICTS.
  48. SEC. 163. TRANSPORTATION MANAGEMENT PROGRAMS AND TRANSPORTATIO…
  49. SEC. 164. SAN FRANCISCO RESIDENT PLACEMENT AND TRAINING PROGRAM.
  50. SEC. 165. CHILD-CARE PLANS AND CHILD-CARE BROKERAGE SERVICES I…
  51. SEC. 166. CAR SHARING.
  52. SEC. 167. PARKING COSTS SEPARATED FROM HOUSING COSTS IN NEW RE…
  53. SEC. 169. TRANSPORTATION DEMAND MANAGEMENT PROGRAM.
  54. SEC. 170. APPLICABILITY OF REQUIREMENTS.
  55. SEC. 171. COMPLIANCE OF USES REQUIRED.
  56. SEC. 172. COMPLIANCE OF STRUCTURES, OPEN SPACES, AND OFF-STREE…
  57. SEC. 173. COMPLIANCE OF LOTS REQUIRED.
  58. SEC. 174. COMPLIANCE WITH CONDITIONS, STIPULATIONS AND SPECIAL…
  59. SEC. 175. APPROVAL OF PERMITS OR DEVELOPMENT APPLICATIONS.
  60. SEC. 176. ENFORCEMENT AGAINST VIOLATIONS.
  61. SEC. 177. LEGITIMIZATION OF CERTAIN MASSAGE ESTABLISHMENTS.
  62. SEC. 178. CONDITIONAL USES.
  63. SEC. 179. USES LOCATED IN NEIGHBORHOOD COMMERCIAL DISTRICTS.
  64. SEC. 180. NONCONFORMING USES, NONCOMPLYING STRUCTURES AND SUBS…
  65. SEC. 181. NONCONFORMING USES: ENLARGEMENTS, ALTERATIONS AND RE…
  66. SEC. 182. NONCONFORMING USES: CHANGES OF USE.
  67. SEC. 183. NONCONFORMING USES: DISCONTINUANCE AND ABANDONMENT.
  68. SEC. 184. SHORT-TERM CONTINUANCE OF CERTAIN NONCONFORMING USES.
  69. SEC. 185. CONTINUANCE OF OTHER NONCONFORMING USES.
  70. SEC. 186. EXEMPTION OF LIMITED COMMERCIAL AND INDUSTRIAL NONCO…
  71. SEC. 187. AUDIT PROPERTIES; AMNESTY PROGRAM.
  72. SEC. 188. NONCOMPLYING STRUCTURES: ENLARGEMENTS, ALTERATIONS, …
  73. SEC. 189. SUBSTANDARD LOTS OF RECORD: CONSTRUCTION AND OTHER A…
  74. SEC. 190. CONVERSION OF MEDICAL CANNABIS DISPENSARIES TO CANNA…
  75. SEC. 191. AUTHORIZATION OF TEMPORARY CANNABIS RETAIL USES.
  76. SEC. 192. LEGITIMIZATION OF CERTAIN LAND USES AT 3150 18TH STR…
  77. SEC. 193. CONTINUATION OF LONGSTANDING PLACES OF ENTERTAINMENT.
  78. SEC. 201. CLASSES OF USE DISTRICTS.
  79. SEC. 202. PERMITTED BY THIS CODE.
  80. SEC. 203. EFFECT ON CERTAIN PUBLIC SERVICES.
  81. SEC. 204. ACCESSORY USES, GENERAL.
  82. SEC. 205. TEMPORARY USES, GENERAL.
  83. SEC. 206. THE AFFORDABLE HOUSING AND EDUCATOR HOUSING PROGRAMS.
  84. SEC. 207. DWELLING UNIT DENSITY LIMITS.
  85. SEC. 208. DENSITY LIMITATIONS FOR GROUP HOUSING OR HOMELESS SH…
  86. SEC. 209. DESCRIPTION AND PURPOSE OF RESIDENTIAL AND RESIDENTI…
  87. SEC. 210. DESCRIPTION AND PURPOSE OF COMMERCIAL, INDUSTRIAL, A…
  88. SEC. 211. P (PUBLIC) DISTRICTS.
  89. SEC. 212. [REPEALED.]
  90. SEC. 213. [REPEALED.]
  91. SEC. 215. [REPEALED.]
  92. SEC. 216. [REPEALED.]
  93. SEC. 217. [REPEALED.]
  94. SEC. 218. [REPEALED.]
  95. SEC. 219. [REPEALED.]
  96. SEC. 220. [REPEALED.]
  97. SEC. 221. [REPEALED.]
  98. SEC. 222. [REPEALED.]
  99. SEC. 223. [REPEALED.]
  100. SEC. 224. [REPEALED.]
  101. SEC. 225. [REPEALED.]
  102. SEC. 226. [REPEALED.]
  103. SEC. 227. [REPEALED.]
  104. SEC. 228. [REDESIGNATED.]
  105. SEC. 229. [REDESIGNATED.]
  106. SEC. 230. [REDESIGNATED.]
  107. SEC. 231. LIMITED CORNER COMMERCIAL USES IN RH, RTO-1, RTO-M, …
  108. SEC. 233. [REDESIGNATED.]
  109. SEC. 234. [REDESIGNATED.]
  110. SEC. 235. SPECIAL USE DISTRICTS.
  111. SEC. 236. [REPEALED.]
  112. SEC. 237. AUTOMOTIVE SPECIAL USE DISTRICT.
  113. SEC. 238. NOB HILL SPECIAL USE DISTRICT.
  114. SEC. 239. WASHINGTON-BROADWAY SPECIAL USE DISTRICT.
  115. SEC. 240. WATERFRONT SPECIAL USE DISTRICT.
  116. SEC. 241. DOLORES HEIGHTS SPECIAL USE DISTRICT.
  117. SEC. 242. BERNAL HEIGHTS SPECIAL USE DISTRICT.
  118. SEC. 243. VAN NESS SPECIAL USE DISTRICT.
  119. SEC. 244. RESIDENTIAL CHARACTER DISTRICTS.
  120. SEC. 247. DOWNTOWN SUPPORT OPEN SPACE DEMONSTRATION SPECIAL US…
  121. SEC. 249.1. FOLSOM AND MAIN RESIDENTIAL/COMMERCIAL SPECIAL USE…
  122. SEC. 249.2. THE VILLAGE SPECIAL USE DISTRICT.
  123. SEC. 249.3. OCEANVIEW LARGE RESIDENCE SPECIAL USE DISTRICT.
  124. SEC. 249.4. ALEXANDRIA THEATER SPECIAL USE DISTRICT.
  125. SEC. 249.5. NORTH OF MARKET RESIDENTIAL SPECIAL USE DISTRICT.
  126. Article 6
  127. Part I
  128. Part II
  129. Part III
  130. Part IV
  131. Part V
  132. Part VI
  133. Part VII
  134. Part VIII
  135. Part IX
  136. Part X
  137. Part XI
  138. Part XII
  139. Part XIII
  140. Part XIV
  141. Part XV
  142. Part XVI

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