What's Required in San Diego
- Building permit required for decks over 30 inches above grade at any point
- Required if the deck is over any basement or story below
- Structural plans must include framing, foundation (min 2,500 psi concrete), and attachment details
- Guardrails required if the deck is 30+ inches high (min 36 inches height)
- Max post height is 10 feet; post size min 4x4 up to 8 feet high
- Lumber must be Douglas Fir-Larch #2 or better and preservative-treated if near grade
When a Deck Needs a Permit in San Diego
Whether a deck needs a building permit in San Diego usually comes down to how high and how big it is. Low, ground-level platforms are often exempt, while raised decks need a permit β in San Diego, the line is a deck floor more than 30 inches above grade (where guardrails and footings come into play). Attached decks almost always require a permit because they tie into the houseβs structure, and even a freestanding deck usually needs one once it passes the size or height cutoff. Check the requirements above before you build, and note that zoning setbacks from property lines apply regardless.
Do You Need a Permit to Repair or Replace a Deck in San Diego
It depends on how much youβre changing. Swapping worn decking boards or railing on the same layout is usually treated as maintenance and often doesnβt require a permit in San Diego. But replacing the structural framing (joists, beams, posts, or footings), rebuilding the deck, enlarging it, or changing its height generally does β at that point itβs regulated like new construction. When in doubt, describe the scope to the City of San Diego Development Services Department before starting; the requirements above outline what San Diego expects.
How to Get a Deck Permit in San Diego
Step 1: Determine Exemption
Verify if your deck is under 30 inches high and detached from the house to see if it's exempt.
Step 2: Draft Structural Plans
Create a framing plan, foundation plan, and connection details per Information Bulletin 206.
Step 3: Online Submittal
Submit the Building Construction application and Project Contact Form (DS-345) via OpenDSD.
Step 4: Plan Review
The city reviews plans for structural and zoning compliance (typically 10β15 business days).
Step 5: Inspections
Schedule footing, framing, and final structural inspections through the portal.