Accessory dwelling unit services — Sunnyvale, CA
Last updated: September 24, 2026
What affects the price
Building an ADU involves variables that shift your total investment. The footprint size and complexity of the architectural design are primary factors. Are you planning a detached unit that requires new utility trenching, or is this a garage conversion that uses existing plumbing? Site accessibility, soil conditions, and your choice of finishes—like luxury flooring versus standard options—also play significant roles. Permitting fees vary widely depending on your local municipality and current zoning requirements. Exact pricing confirmed free on the call.
About this service
Frequently asked in Sunnyvale
What kind of ADU companies work in Sunnyvale?
What are accessory dwelling unit homes like?
Accessory dwelling unit homes are secondary housing units on your existing property in Sunnyvale. Think of them as a detached garage converted into a living space or a new small home in your backyard. They can be a studio or have multiple bedrooms. These homes are designed to be fully functional living spaces. They offer privacy and independence for occupants. They are a great addition to your Sunnyvale property.
Are there grants for ADUs in Sunnyvale, California?
How much does ADU construction cost in Sunnyvale?
What makes an ADU the best option for my home?
Can I get an ADU built quickly in Sunnyvale?
What are the permit requirements for an ADU in Sunnyvale?
Also serving nearby: Santa Clara · Burbank · Fremont · San Jose · Hayward
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Sunnyvale — population 151,967; about 6,888 residents per square mile across 22.1 sq mi. ZIP codes covered include 94085, 94086, 94087, 94088, 94089.
Neighborhoods served in Sunnyvale: Ortega, Cherry Orchard, Fairwood, Birdland, Lakewood — and every surrounding area.
Areas we serve
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