Deck / Patio Permit Requirements in Sunnyvale, CA
2022 CBC (based on 2021 IRC). Seismic Design Category D. E-OneStop online permitting system (upgraded Aug 2024).
When you DON'T need a permit
Freestanding decks not more than 30 inches above grade are exempt from a building permit per IRC R105.2.
Source: City of Sunnyvale Code / 2022 CBC
When you DO need a permit
Attached decks require a building permit even if under 30 inches.
Estimated fee: $110 – $385
Typical timeline: About 2 weeks
Source: City of Sunnyvale Code / 2022 CBC
Decks more than 30 inches above grade require a building permit.
Estimated fee: $165 – $550
Typical timeline: About 2 weeks
Source: City of Sunnyvale Code / 2022 CBC
Covered decks or those over 300 sq ft require a building permit.
Estimated fee: $220 – $660
Typical timeline: About 3 weeks
Source: City of Sunnyvale Code / 2022 CBC
Decks may be subject to zoning setback and lot coverage requirements. Check with your local planning department before building near property lines.
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Frequently Asked Questions
Estimated permit fees for Deck / Patio projects in Sunnyvale, CA range from $110 – $385. Fees vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Deck / Patio projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.
Working without a required permit in Sunnyvale can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.
Typical approval time for Deck / Patio permits in Sunnyvale is About 2 weeks. More complex projects may take longer if plan review is required.
Learn More About Deck / Patio Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Deck / Patio Guide →