When does a deck need a building permit in San Jose?

San Jose exempts only detached decks up to 200 sq ft and 30 in above grade. Detached decks up to 200 sq ft and no more than 30 in above grade are exempt.

Where do I apply for a deck permit in San Jose?

Apply through SJPermits.org, or call (408) 535-3555.

Do you need a permit for a deck in San Jose, CA?

It depends on size and placement.

Freestanding decks up to 200 sq ft and 30 in above grade are exempt.

Rules last checked by a person on October 19, 2026. Guidance only; confirm with San Jose before you build.

Check your exact lot

Setbacks depend on your zoning district, and a flood zone can change the permit answer. Enter your address to see both.

Permits a deck can need in San Jose

Permit	When it applies
Building permit	San Jose exempts only detached decks up to 200 sq ft and 30 in above grade.
Floodplain development permit	If the lot is in a FEMA special flood hazard area, all development there needs a permit.

Local details

Call 811 at least a few days before you dig footings or post holes. Utility locating is free.
HOA covenants and deed restrictions can be stricter than city rules. Check yours before you build.

How to apply

Questions people ask

When does a deck need a building permit in San Jose?: San Jose exempts only detached decks up to 200 sq ft and 30 in above grade. Detached decks up to 200 sq ft and no more than 30 in above grade are exempt.
Where do I apply for a deck permit in San Jose?: Apply through SJPermits.org, or call (408) 535-3555.

Sources

San Jose Building Division Bulletin 201, When Is a Building Permit Required? (10/10/2024). Checked 2026-10-19.
Accessory structures of 120 square feet or less and that will not be electrically wired... [fences] no higher than 7 feet along rear and side yards and no higher than 3 feet along front yard... Decks in Group R-3 occupancy that are not attached to a dwellin…
44 CFR 59.1, definition of development (NFIP). Checked 2026-10-19.
Development means any man-made change to improved or unimproved real estate, including but not limited to buildings or other structures...
44 CFR 60.3, floodplain management criteria. Checked 2026-10-19.
Require permits for all proposed construction or other development in the community...