# Santa Cruz ADU (santacruzadu.com)

> ADU design, permits and construction in Santa Cruz County, California, by WS Builders, Inc. (CA Lic. 874257), a licensed general contractor in Scotts Valley owned by Warren Swanepoel. Design, permits and construction are done by one team, with a fixed price in writing before work starts and a finish date in the contract. Main company site: https://wsbuilders.us/

## Contact
- Phone: (831) 818-4321 (Josh Bacorn handles the first call)
- Lot quiz (60 seconds): https://santacruzadu.com/quiz/
- Free Santa Cruz ADU Playbook, 2026-27 (by email): https://santacruzadu.com/#playbook

## Guides
- [How much does an ADU cost in Santa Cruz County?](https://santacruzadu.com/blog/adu-cost-santa-cruz-county/): Historically, our ADUs have come in around $320,000 for a garage conversion, $400,000 for a studio, $525,000 for a one-bedroom and $650,000 for a two-bedroom. Beyond the size and type of unit, the biggest swings come from fees, water and sewer connections, septic and the slope of the lot.
- [ADU rules in the City of Santa Cruz](https://santacruzadu.com/blog/city-of-santa-cruz-adu-rules/): Any lot in the City zoned for homes can have an ADU, and most need only a building permit, with no public hearing. A single-family lot can have one detached unit of up to 800 square feet with 4 foot side and rear setbacks, one conversion ADU, one more ADU under the City's own standards, and a junior ADU. You don't have to live on the property to build an ADU.
- [Converting a garage into an ADU in Santa Cruz County](https://santacruzadu.com/blog/garage-conversion-adu-santa-cruz/): A legal garage can usually become an ADU without replacing the parking, outside certain coastal areas. The County waives its sewer and water connection fees for conversions, and the City lets you add up to 150 square feet. Historically, our garage conversions have come in around $320,000.
- [ADU rules in unincorporated Santa Cruz County](https://santacruzadu.com/blog/santa-cruz-county-adu-rules/): Any County parcel zoned for homes, with a house on it or planned, can have an ADU, and most ADUs need only a building permit. A single-family lot can have up to four: one ADU under the County's own rules, plus a conversion ADU, a junior ADU and a detached unit of up to 800 square feet with 4 foot side and rear setbacks. On septic, adding an ADU means the system has to meet the County's upgrade standards.