Number of ADUs Allowed in West Hollywood
- Maximum size: 1,200 sq ft (detached or attached, or 50% of the size of the main dwelling)
- Side/rear setbacks: 4 feet
- Two story: Yes, for both attached and detached ADUs
- Building separation: 6 feet
- Soils Report: Possibly, especially in areas with grading or on hillsides
- Building Verification Survey: Yes
- Coastal permit (in some areas): N/A
- Stormwater Mitigation: Yes
Number of ADUs Allowed in West Hollywood
You can build one ADU on single-family property in West Hollywood, as well as convert one existing space within the primary dwelling unit to a JADU.
You can build up to two ADUs on multifamily property in West Hollywood, as well as convert as many existing non-habitable spaces within the structure as feasible into additional ADUs.
ADU West Hollywood – Size & Building Constraints
In West Hollywood, a detached ADU can be a maximum of 1,200 square feet.
In West Hollywood, an attached ADU can be a maximum of 1,200 square feet or 50% of the primary dwelling unit size, whichever is smaller..
In West Hollywood, an ADU is usually limited in height to 16 feet. However, if the ADU is positioned over an existing structure, like a garage, specific zoning rules may allow for a taller ADU.
Yes, you are allowed to build a 2-story ADU in West Hollywood, but the standard 16-foot height restriction is usually insufficient for a viable 2-story building. If zoning variances allow for a greater height limit, a 2-story ADU may be much more feasible.
Since only one ADU is allowed per single-family property in West Hollywood, it is not possible to get approval for two ADUs stacked on top of each other, one on each story. For multifamily property, which allows up to two detached ADUs, these ADUs can be stacked on top of each other, with one on each story, but height restrictions still apply. If you don’t qualify for an exception to the standard 16-foot height limit, it will be hard to design and permit a viable two-story structure.
Since only one ADU is allowed per single-family property in West Hollywood, it is not possible to get approval for two ADUs attached to each other. However, since you can build up to two detached ADUs on multifamily property, you can get approval for two ADUs detached from the main structure but attached to each other into one big structure as long as all other zoning and building rules are observed.
No, a JADU by definition is built into existing space within the primary dwelling unit. It would be a contradiction in terms to have a JADU attached to an ADU.
Yes, you are allowed to build an ADU with a roof deck in West Hollywood. However, keep in mind that the required safety railing will count towards the total height limit of the ADU. The minimum safety railing height on a roof deck in California is 42 inches.
West Hollywood requires that new ADUs generally conform to the external appearance of the main dwelling unit — color, material, roof pitch, roofline, door and window style, and other general characteristics to help the ADU blend in with the primary dwelling unit (similar to a garage conversion) and the rest of the neighborhood.
ADU Setbacks in West Hollywood
West Hollywood requires 4-foot rear and side setbacks for new ADUs. ADUs built into existing structures are exempt from setback requirements.
ADUs in West Hollywood must maintain a minimum of 6 feet of separation from other structures.
No, ADUs cannot be permitted for the front yard in West Hollywood.
ADU Setbacks in West Hollywood
West Hollywood not only allows online plan submission, as of August 2024 itrequiresonline plan submission. In-person plan submission is no longer an option. You can easily submit your plans via theCity of West Hollywood Permit & License Portal.
A soils report may be required for a new ADU in West Hollywood if the property is located on a hillside or in a seismic zone.
Depending on the zoning, West Hollywood usually requires that properties be maintained as at least 20-40% green space and 30-50% permeability.
Plans must be submitted to the West Hollywood Department of Building & Safety. They must then be reviewed by a variety of departments to check for compliance with the California Building Code, zoning, fire safety, and Title 24 energy standards. The plans may be returned several times for questions, corrections, and revisions. The process takes approximately 6-10 weeks.
Parking for West Hollywood ADU
West Hollywood requires that residential property include at least one extra parking space per ADU. However, the additional parking requirement may be waived if any of the following apply:
- The property is located within a half-mile of a public transit stop.
- The ADU construction is a converted garage or parking structure.
If a new parking space is required, it can be located in the rear or side yard, or in the driveway. Tandem parking is allowed, and the parking space does not need to be covered.
Additional Requirements in West Hollywood
Per California state law, solar panels of appropriate size and capacity are mandatory on new-construction ADUs. ADUs built from converted existing structures are exempt. Smaller ADUs may be subject to reduced or modified solar panel requirements.
An ADU is not required to have a separate water or electrical meter. You can opt for the ADU to share service with the main dwelling unit. However, you can request separate water or electrical meters from the City of West Hollywood.
An ADU in West Hollywood is usually assigned its own separate address, especially if the ADU is intended for rental or independent occupancy.
Low Impact Development (LID) is an approach to land development or redevelopment that seeks to preserve and conserve onsite water quality and natural features, with minimal detrimental effect to local waterways and ecosystems. West Hollywood may require LID fees for larger ADUs.
No. West Hollywood prohibits renting a dwelling unit, or any portion of one, for 30 consecutive days or less. That ban applies citywide to any dwelling unit, and West Hollywood's ADU regulations subject ADUs to the same restrictions on lease terms that apply to all residential units in the city. Advertising a prohibited short-term rental is also barred.
A resident owner who lives on site may qualify separately for a Home Sharing Business License, but that is not the same as short-term renting an ADU.
West Hollywood does not impose rent control on dwellings constructed after January 1, 1995. This means most new-build ADUs are exempt. However, if the primary dwelling unit is subject to rent control, it might apply to the ADU as well.
While encouraging the use of electric appliances for efficiency and sustainability, West Hollywood does not prohibit gas appliances in new ADUs.
In West Hollywood you are only required to install sprinklers in a new ADU if the primary dwelling unit has them as well. You may also be required to install them if the ADU is located within a special fire hazard zone.
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