What's Required in San Diego
- Building permit for any deck over 200 sq ft, over 30 in above grade, attached to a dwelling, or serving the exit door (SDMC 129.0203(a)(15); IB 211)
- Plans drawn to scale with site plan, framing plan, footing and connection details per IB 211, or engineered plans and calculations
- IB 211 tables cannot be used for decks within 5 ft of a property line or carrying a hot tub; those need a licensed design professional
- Guards at least 42 in high with 4 in maximum openings where the deck is more than 30 in above grade
- Handrail on at least one side of stairs with four or more risers
- Footings at 2,500 psi concrete, placed at least 12 in below undisturbed ground
- Smoke and carbon monoxide alarms installed in the dwelling when the deck is attached
- Owner-Builder Verification Form DS-3042 if the owner holds the permit; DS-345 contacts form for all projects
- Structures 45 years or older with exterior work go through Potential Historical Resource Review
Do You Need a Permit for a Deck in San Diego?
Usually yes. San Diego Municipal Code section 129.0203(a)(15) exempts a deck only when it clears four tests at once: 200 square feet or less, no more than 30 inches above grade at any point, not attached to the dwelling, and not serving the exit door required by the California Residential Code. Information Bulletin 211 states it as the permit trigger: a building permit is required for any residential deck that exceeds 200 square feet, is more than 30 inches above grade at any point, is attached to a dwelling, or serves as the main exit door. So the typical backyard deck bolted to the house needs a permit at any size and height. The exemption also does not apply on a designated historical resource, in a historic district or on environmentally sensitive lands.
San Diego Deck Rules by Scenario
| What you are doing | City filing | Rule |
|---|---|---|
| Freestanding platform, 200 sq ft or less, 30 in or less above grade, not at an exit door | None | SDMC 129.0203(a)(15); IB 211 |
| Deck attached to the house, any size | Building permit with plans (Deck fee line, up to 500 sq ft) | IB 211; IB 501 Table 501C |
| Deck over 500 sq ft | Building permit, higher Deck fee line | IB 501 Table 501C |
| Deck closer than 5 ft to a property line, or carrying a hot tub | Building permit with engineered plans; IB 211 tables cannot be used | IB 211 |
| Replacing rotted joists, stringers or treads in kind on a permitted deck | No-Plan Building Permit, $529.71 inspection fee | IB 203; IB 501 Repair/Replace In Kind |
| Swapping deck boards or railing, like for like, under $1,000 | None (maintenance repair) | SDMC 129.0203(a)(17) |
| Deck in a Very High Fire Hazard Severity Zone | Permit; Wildland Urban Interface materials required | IB 211; SDMC 55.9401 |
How Much Does a Deck Permit Cost in San Diego?
Deck permits are flat-fee, not valuation-based. Information Bulletin 501, Table 501C, charges a single-dwelling, duplex or townhome deck $1,677.99 plan check and $264.25 inspection up to 500 square feet, and $2,649.60 plus $440.82 above 500 square feet. Because plans are reviewed, the $737.00 General Plan Maintenance Fee is collected once at application, with a $12.16 mapping fee. A 300-square-foot attached deck therefore costs about $1,677.99 + $264.25 + $737.00 + $12.16 = $2,691.40; a 600-square-foot deck about $3,839.58. Add the state strong-motion fee at 13 cents per $1,000 of valuation, the building standards fee of $1 per $25,000, a $17.11 collection charge, and a $58.00 lead hazard fee when the house was built before 1978. A deck built from City pre-approved plans is a cheaper line: $1,148.29 plan check and $264.25 inspection. IB 501 also lists a 2.5-hour impact-fee assessment charge on building permit projects; confirm with DSD whether it is applied to a deck.
What the Plans Must Show
IB 211 is San Diego's deck bulletin for single-family homes and duplexes. You submit project-specific plans, either sized from its tables (joist spans, beam spans, post heights, footing sizes at 2,500 psi concrete set at least 12 inches below undisturbed ground) or engineered by a licensed architect or civil engineer. The bulletin cannot be used for decks closer than 5 feet to a property line or carrying concentrated loads such as a hot tub; those need a registered design professional. Guards are required along any open side more than 30 inches above grade, at least 42 inches high with openings that stop a 4-inch sphere, and stairs with four or more risers need a handrail on at least one side. Attaching a deck to the house triggers smoke and carbon monoxide alarms inside the dwelling. Any exterior work on a structure 45 years old or older goes through Potential Historical Resource Review, typically ten business days.
Who Files and How Long It Takes
File online through the DSD portal as a Building Construction application. A licensed contractor can hold the permit, or the owner can with the Owner-Builder Verification Form DS-3042; the DS-345 contacts form goes in with every project. IB 100 puts decks in the single-dwelling Short category, estimated at 8 business days for the first review and 6 for a recheck. Plan check is paid before review, inspection at issuance; the permit is void if not used within one year and expires three years after issuance.
How to Get a Deck Permit in San Diego
Test the exemption
Detached, 200 sq ft or less, 30 in or less above grade, not at an exit door: no permit. Anything else files.
Draw the plans
Use IB 211's span, post and footing tables or hire an engineer; decks within 5 ft of a line or under a hot tub must be engineered.
Apply online
Submit a Building Construction application on the DSD portal with plans, DS-345 and, for owner-builders, DS-3042.
Pay plan check and wait
The $1,677.99 plan check and $737.00 General Plan Maintenance Fee are due before review; first review is estimated at 8 business days.
Pay inspection, build, inspect
The $264.25 inspection fee is invoiced at issuance; schedule footing, framing and final inspections online or at 858-581-7111 before covering work.