Ataman Studio specializes in creating accessory dwelling units that balance design, performance, and compliance. Our approach combines architectural expertise, engineering precision, and regulatory fluency to make the process straightforward and predictable.
As a full-service ADU builder in Sunnyvale, we handle everything:
site evaluation, architectural design, Title 24 energy reports, and permit coordination — so you can focus on your vision while we manage the details.
Sunnyvale’s mix of mid-century homes, modern remodels, and tree-lined streets calls for thoughtful ADU integration.
We design compact, efficient units that enhance property value and blend beautifully with existing architecture — whether detached, attached, or above a garage.
Construction costs in Sunnyvale vary depending on design complexity, lot conditions, and finish level.
Below are typical ranges for full-service ADU projects:
| ADU Type | Average Cost Range | Description |
|---|---|---|
| Garage Conversion | $160,000 – $220,000 | Transforms existing garage into a livable unit with new insulation, plumbing, and finishes. |
| Detached ADU | $280,000 – $560,000+ | Independent backyard home with kitchen, bath, and complete utility connections. |
| Junior ADU (JADU) | $100,000 – $170,000 | Compact unit built within existing home footprint — ideal for family or rental. |
Use our ADU Cost Calculator to estimate your project’s potential investment.
Ataman Studio has worked with homeowners across the Bay Area, including Sunnyvale, Mountain View, Palo Alto, and Santa Clara — helping transform underused spaces into livable, modern ADUs.
We understand the city’s unique requirements, neighborhood aesthetics, and building codes, ensuring every project blends seamlessly with its surroundings.
Office: 13151 Fountain Park Dr, Los Angeles, CA 90094
Phone: (213) 618-5456
Email: info@atamanstudio.com
Yes. Most single-family and multi-family lots in Sunnyvale qualify for ADU construction under California state law. We verify your zoning, lot coverage, and utility access during the feasibility phase.
Detached ADUs can reach up to 1,200 sq ft, with height limits of 16–20 ft depending on lot type. Setbacks are typically 4 ft from side and rear property lines, but some neighborhoods have additional design guidelines to preserve privacy.
Currently, Sunnyvale does not have a standard plan library, but they accept complete architectural submissions that meet state code. Ataman Studio provides full drawing sets ready for city review and Title 24 energy compliance.
Budgets usually range from $250K – $500K+, depending on site conditions, finishes, and type of unit. Conversions tend to cost less, while detached ADUs with new foundations and utilities cost more.
Permitting in Sunnyvale typically takes 8–10 weeks, and full projects run 8–12 months from concept to completion. Early planning and accurate documentation can shorten this timeline significantly.
Yes — all newly built ADUs in Sunnyvale must include solar power or be designed “solar-ready” under California’s latest building code.
We manage both — from architectural design and energy modeling to permit coordination and construction oversight, ensuring your ADU meets Sunnyvale’s code and quality standards.
