Santa Cruz, CA

Accessory Dwelling Unit (ADU) City Regulations


Are ADUs allowed in Santa Cruz:

Yes!

Number of ADUs allowed:

Limited to one ADU per parcel.

Types of ADUs allowed:

Both attached and detached ADUs are permitted, however, a parcel may have EITHER a habitable accessory structure with a bathroom OR an ADU, but not both.

Lot size:

Must follow new construction guidelines.

ADU size:

The ADU may not exceed 640 sq. ft or 10% of the lot size within the Urban Services Line. Outside of the Urban Services Line, on lots smaller than 10,000 sq. ft., ADUs may be up to 640 sq. ft. while lots between 10,000 sq. ft. and 1 acre may have ADUs up to 800 sq. ft. Parcels 1 acre or larger outside of the Urban Services Line can feature ADUs up to 1,200 sq. ft.

Parking:

In addition to the primary residence's required parking, one parking space per bedroom in the ADU is required, unless exception qualifications are met.

Fire Safety:

Fire Sprinklers in ADUs are only mandatory if also present in or required for the primary structure.

Shape, materials and style:

The ADU should share architectural compatible with the primary residence. Additionally, ADU doors, windows, and balconies should be situated to preserve privacy.

Height:

Inside the Urban Services Line, ADUs cannot exceed 17 feet in height unless constructed above a garage, in which case they can be up to 22 feet.

Design review:

All development guidelines (setbacks, lot coverage, etc.) for the underlying zone district must be met. State ministerial review processes apply.

Environmental Requirements:

Fire, Sanitation and Water Districts' approval requirements must be satisfied during the Building Permit process.

Ownership:

Either the ADU or primary structure must be owner-occupied as evidenced by a home owner's property tax exemption, or other documentation.

Permit Fees:

Please refer to http://www.cityofsantacruz.com/Home/ShowDocument?id=3668

Allowed Zones:

The lot must be zoned Residential or otherwise have a General Plan designation of Residential. An exception is made for lots outside of the Coastal Zone which may be zoned for Agriculture.

ADU Manual/Guide:

http://sccoplanning.com/Portals/2/County/Planning/zoning/ADUs_SCCO_Overview.pdf

Potential Rental Income:

According to Zillow.com, an accessory dwelling unit in Santa Cruz can generate $24,000+ per year in possible rental income.

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