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§ 5.03

5.03.353 Home Office Use – Zoning Clearance; Prohibited Activities.

Colma Zoning Code · 2026-06 edition · updated 2026-07-08 · Colma

(a) The Zoning Administrator shall issue a Zoning Clearance for a Home Office Use upon making a finding, based on substantial evidence, that:

(1) the building is a legal dwelling unit in a location zoned for residential use;

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(2) a resident of the dwelling unit will use the home office either as an office or a place of instruction;

(3) the Home Office Use will not include any use or activity that is prohibited by subsection (b) of this section;

(4) the Home Office will conform to the building requirements and space limitations set forth in subsection (c) of this section; and

(5) the Home Office Use will not include any use or activity that is not incidental to or incompatible with residential activities.

(b) The following uses or activities are prohibited in, on or about a dwelling unit for which a Zoning Clearance has been issued for a Home Office Use:

(1) Changes to Residential Character. A home office use that interferes with, frustrates, or obstructs the primary use of the property as a residence or which changes the color, material, construction or lighting of the premises to attract business is prohibited.

(2) Parking or storing commercial vehicles and attachments. A vehicle used primarily in connection with the Home Office use shall not be parked, stopped or stored on the subject property or on any public street in the “R” or “R-S” Zone in the Town. Equipment attached to a vehicle used primarily in connection with the Home Office Use shall not be parked, stopped or stored on the subject property or on any public street in the “R” or “R-S” Zone in the Town.

(3) Direct Sales Prohibition. Use of a home office or dwelling unit for the direct sales of goods, merchandise, or services is prohibited except by mail, telephone or other mode of electronic communication and where no merchandise is physically delivered to, sent from, or stored at the premises.

(4) Sales of Illegal or Regulated Items and Services. Use of a home office or dwelling unit for the illegal sale, either direct or indirect, is prohibited. Examples include but are not limited to: sale of firearms [as defined by Penal Code Section 12001(b), as may be amended from time to time]; sale of hazardous materials, fireworks or explosives; sale of alcoholic beverages made on the premises or elsewhere; sale of prescription medications or narcotics; sale of illegally imported items; and appointments for massage or escort services.

prohibited. Examples include but are not limited to: sale of firearms [as defined by Penal Code Section 12001(b), as may be amended from time to time]; sale of hazardous materials, fireworks or explosives; sale of alcoholic beverages made on the premises or elsewhere; sale of prescription medications or narcotics; sale of illegally imported items; and appointments for massage or escort services.

(5) Environmental Disturbances. Use of a home office or dwelling unit to emit, release, cause or create any of the following, or permitting the use of a home office or dwelling unit to emit, release, cause or create any of the following is prohibited: objectionable noise [in excess of 45 decibels, “A” weighted day-night level or dBA(LDN)], electrical or magnetic interference, vibration, release of particulate matter, odor, heat, humidity, glare, refuse, radiation, interference with the transmission of communications, interference with radio or television reception, or other objectionable emissions, effects or hazards, which increase these effects above the local ambient level or create a potential danger to the community.

(6) Equipment and Furniture.

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(i) Where the dwelling is used an office, only office equipment, such as facsimile machines, table-top copy machines, phones, personal computers, laptops, and electronic tablets, and office furniture are permitted;

(ii) Where the dwelling is used for music lessons, only musical instruments and office furniture are permitted;

(iii) Machinery and equipment not normally found in a residence are not permitted in a home office.

(7) Manufacturing and Fabrication Equipment. The manufacture or fabrication of goods is prohibited.

(8) Place of Instruction Limitations. Use of a home office as a place of instruction is limited as follows:

(i) There shall not be more than two students at a time and not more than six students per day at the dwelling unit;

(ii) All lessons shall be by appointment only, and recitals are not permitted; and

(iii) lessons shall be in a subject taught at an accredited grammar or high school or in playing a musical instrument, such as the piano or guitar.

(9) Nonresident Employees. Use of a home office or dwelling unit by an employee not residing on site to conduct business is prohibited, except that this prohibition does not apply to a domestic servant, such as a maid, gardener, or babysitter, who has been hired to assist in maintaining the household or caring for a resident.

(10) Signage. No person may install or permit a sign for a home office use that is not in conformance with the regulations for the district in which the business is located.

(11) No Business Guests. The Permittee shall not receive any clients, customers vendors, subcontractors or other persons intending to transact business at the Subject Property. Permittee shall not allow any employees or independent contractors working for Permittee in connection with the Home Office Use to work or congregate at or around the Subject Property.

(12) On-Site Client or Business Associate Meeting. Use of a home office or dwelling unit for an on-site client visit or meeting is prohibited. All meetings between or among clients, business associate or employees shall be conducted off-site from the dwelling unit.

(13) Hazardous Material Storage or Use. Hazardous chemicals or substances not normally found at a residence, such as cleaning supplies, laundry supplies or garden chemicals in quantities appropriate for single dwelling use, are prohibited.

(c) Building and Structural Requirements.

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(1) Enclosure. All activities related to the home office use must be conducted within the enclosed, livable area of the premises.

(2) Area. The maximum area that may be used for a home office shall not exceed 200 square feet.

(3) Structure. A dwelling unit may not have an entrance to a space devoted to a home office use that is not from within the building, or with internal or external alterations or construction features not customary in dwellings.

(4) Garage. The use of the garage or carport of a dwelling unit to store merchandise or equipment or to conduct any business activity is prohibited.

[History: New, ORD. 706, 3/14/12; ORD. 713, 10/10/12]

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Contents — Colma Zoning Code
Colma Zoning Code
  1. § 5.03
    Overview
    1. 5.03.020 Purpose.
    2. 5.03.030 Definitions generally.
    3. 5.03.040 General Prohibition.
    4. 5.03.050 Zones and Boundaries Thereof.
    5. 5.03.060 Zone Boundaries.
    6. 5.03.070 “G” Zone - Regulations Established.
    7. 5.03.071 “G” Zone - Permitted Uses.
    8. 5.03.072 “G” – Golf and Cemetery Zone – Development Standards.
    9. 5.03.080 Regulations Established.
    10. 5.03.081 Permitted Uses.
    11. 5.03.082 “R” - Residential Zone Development Standards.
    12. 5.03.090 Regulations Established.
    13. 5.03.091 “R-S” Zone - Permitted Uses.
    14. 5.03.092 “R-S” Zone Development Standards.
    15. 5.03.100 Purpose and Intent.
    16. 5.03.101 Definitions.
    17. 5.03.102 Permit Required.
    18. 5.03.103 ADU Density and Consistency.
    19. 5.03.104 ADU Process Time and Submittal Requirements.
    20. 5.03.105 ADU General Development and Operational Standards.
    21. 5.03.106 ADU Rental and Sale Limitations.
    22. 5.03.107 ADU Fee Requirements.
    23. 5.03.108 Conditions for Nonconforming Uses and Structures.
    24. 5.03.109 State Exempt ADUs and JADUs.
    25. 5.03.110 Number and Combination of State Exempt ADUs and JADUs…
    26. 5.03.111 State ADU Standards.
    27. 5.03.112 Non-State Exempt ADU Objective Design Standards.
    28. 5.03.113 Junior Accessory Dwelling Units.
    29. 5.03.110 Purpose.
    30. 5.03.111 Standards for Permitting Large Family Day Care Homes.
    31. 5.03.120 Purpose.
    32. 5.03.121 Prohibition of Boarding Houses or Rooming Houses in S…
    33. 5.03.130 Regulations Established.
    34. 5.03.131 Purpose.
    35. 5.03.132 Permitted Uses.
    36. 5.03.133 “C” - Commercial Zone Development Standards.
    37. 5.03.140 Regulations Established.
    38. 5.03.141 Purpose.
    39. 5.03.150 Regulations Established.
    40. 5.03.151 Purpose.
    41. 5.03.152 "DR" - Design Review Combining Zone Design Standards …
    42. 5.03.153 Restrictions and Procedures Applicable to the "DR" - …
    43. 5.03.154 Objective Design Standards (ODDS) for Planned Develop…
    44. 5.03.155 Manufactured Single-Family Residential Objective Desi…
    45. 5.03.156. ADU (ODDS)
    46. 5.03.160 Regulations Established.
    47. 5.03.161 Purpose.
    48. 5.03.162 Permitted Uses.
    49. 5.03.163 "P" – Public Zone Development Standards
    50. 5.03.170 Regulations Established.
    51. 5.03.171 Permitted Uses.
    52. 5.03.172 "E" – Executive, Administrative Zone Development Stan…
    53. 5.03.180 Regulations Established.
    54. 5.03.181 Purpose.
    55. 5.03.182 Permitted Uses.
    56. 5.03.183 Establishment of PD – Planned Development Districts.
    57. 5.03.184 Conceptual Development Plan Required.
    58. 5.03.185 Conditional Uses.
    59. 5.03.186 Detailed Development Plan Required.
    60. 5.03.187 PD – Planned Development Design Standards.
    61. 5.03.188 Open Space and Density.
    62. 5.03.189 Amendment of Development Plan.
    63. 5.03.190 Development Schedule.
    64. 5.03.191 Revocation of Use Permit.
    65. 5.03.195 Purpose.
    66. 5.03.196 No Parking Standards Required for Housing Element Ove…
    67. 5.03.197 Purpose.
    68. 5.03.198 Density Bonus and Affordable Housing Incentives.
    69. 5.03.199 In-Lieu Fees and Impact Fees.
    70. 5.03.200 Housing Fund.
    71. 5.03.201 Purposes and Use of Housing Fund.
    72. 5.03.202 Affordability Requirement for Residential Development.
    73. 5.03.203 Exemptions.
    74. 5.03.204 Basic Requirements for Inclusionary Units.
    75. 5.03.205 Alternative Equivalent Actions.
    76. 5.03.206 Compliance Procedures.
    77. 5.03.207 Eligibility for Inclusionary Units.
    78. 5.03.208 Owner-Occupied Units.
    79. 5.03.209 Rental Units.
    80. 5.03.210 Delegation of Authority.
    81. 5.03.211 Minimum Requirements.
    82. 5.03.212 Adjustments, Waivers.
    83. 5.03.213 Enforcement Provisions.
    84. 5.03.215 Regulations Established.
    85. 5.03.216 Purpose.
    86. 5.03.217 Restriction Applicable to "F" Zone.
    87. 5.03.218 Regulations Established.
    88. 5.03.219 “T" – Transit Zone Development Standards.
    89. 5.03.220 Development Standards Applicable to All Zones
    90. 5.03.230 Purpose.
    91. 5.03.231 Applicability.
    92. 5.03.232 Parking Standards.
    93. 5.03.233 Calculation of Parking
    94. 5.03.234 Location of Required Parking.
    95. 5.03.240 Purpose.
    96. 5.03.241 Application for Use Permit.
    97. 5.03.242 Standards for Granting Use Permit.
    98. 5.03.243 Effective Date of Decision to Grant or Deny Use Permi…
    99. 5.03.244 Lapse of Use Permit; Extension.
    100. 5.03.245 Duration of Use Permit.
    101. 5.03.246 Revocation of Use Permit.
    102. 5.03.250 Purpose.
    103. 5.03.252 Application Process; No Public Hearing.
    104. 5.03.253 Tier 1 Temporary Uses.
    105. 5.03.254 Tier 2 Temporary Uses.
    106. 5.03.255 Required Findings.
    107. 5.03.256 Conditions of Approval.
    108. 5.03.257 Term; Extension.
    109. 5.03.258 Revocation.
    110. 5.03.259 Appeal.
    111. 5.03.260 Posting.
    112. 5.03.270 Purpose
    113. 5.03.271 Application for Variance.
    114. 5.03.272 Standards for Granting a Variance.
    115. 5.03.273 Effective Date of Variance.
    116. 5.03.280 Purpose
    117. 5.03.281 Application for Amendment.
    118. 5.03.282 Standards for Adopting Amendments to Zoning Ordinance.
    119. 5.03.283 Compliance.
    120. 5.03.290 Administrative Permits.
    121. 5.03.300 Purpose.
    122. 5.03.310 Purpose.
    123. 5.03.350 Minor, Short-term, and Temporary Uses.
    124. 5.03.351 Home Office Use – Purpose and Recitals.
    125. 5.03.352 Home Office Use – Scope; Prohibition.
    126. 5.03.353 Home Office Use – Zoning Clearance; Prohibited Activi…
    127. 5.03.354 Home Office Use – Zoning Clearance Process.
    128. 5.03.355 Home Occupation Use – Conditional Use Permit Required.
    129. 5.03.356 Home Occupation Use or Cottage Food Operation – Condi…
    130. 5.03.357 No Net Reduction in Housing Units.
    131. 5.03.358 Regulation of the Use of Personal, Medical, and Comme…
    132. 5.03.359 Restrictions and Landscaping Along El Camino Real.
    133. 5.03.360 Restrictions Applicable to Recreational Vehicles and …
    134. 5.03.361 Restrictions Applicable to Dumps.
    135. 5.03.362 Regulations Applicable to RMU Vendors.
    136. 5.03.420 Applicability and Purpose.
    137. 5.03.421 Definitions.
    138. 5.03.422 Basic Requirements.
    139. 5.03.423 Applicant Obligations.
    140. 5.03.424 Electronic Processing.
    141. 5.03.425 Application Review.
    142. 5.03.426 Administrative Use Permit.
    143. 5.03.427 Inspections.
    144. 5.03.428 Exemptions.
    145. 5.03.430 Purpose.
    146. 5.03.431 Applicability of Historic Design Review.
    147. 5.03.432 Definitions.
    148. 5.03.433 Historic Design Review Procedures.
    149. 5.03.434 Findings and Decision.
    150. 5.03.435 Conformance to Plans.
    151. 5.03.500.1 Purpose and Findings.
    152. 5.03.500.2 Definitions.
    153. 5.03.502 Removal or Alteration of Trees Without a Permit Prohi…
    154. 5.03.503 Decision Making Body.
    155. 5.03.504 Permit Procedures.
    156. 5.03.505 Exceptions.
    157. 5.03.506 Appeal .
    158. 5.03.600 Purpose.
    159. 5.03.601 Definitions.
    160. 5.03.602 Administration.
    161. 5.03.603 Interference with town employees, contractors or repr…
    162. 5.03.604 Public Tree Care.
    163. 5.03.605 Destruction of Public Trees Unlawful.
    164. 5.03.606 Exceptions.
    165. 5.03.608 Town Tree Master Plan.
    166. 5.03.608 Master Tree List.
    167. 5.03.609 Prohibited Trees.
    168. 5.03.700 Purpose.
    169. 5.03.701 Applicability.
    170. 5.03.702 Application Requirements.
    171. 5.03.703 Consideration of Request.
    172. 5.03.704 Notice of Decision.

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