La Jolla, CA
La Jolla ADU Permit Fee Calculator (2026)
Instant fee breakdown for La Jolla, California. Total range: $5,000–$13,500.
La Jolla, California ADU Permit Fees
Total estimated range: $5,000–$13,500
Plan Check
$1,000–$2,500
Building Permit
$1,500–$4,000
Impact Fees
Waived (< 750 sf)
School Fees
$2–$4/sf
Utility Hookups
$2,500–$7,000
Source: City permitting schedules and FeeBuilder surveys, updated April 2026.
La Jolla permit process at a glance
Permitting office: City of San Diego Development Services Department (La Jolla is in the City of San Diego)
Typical plan review: 14-22 weeks
Fee waivers: ADUs under 750 sq ft are exempt from impact fees per AB 681 (2023).
La Jolla sits entirely inside the California Coastal Zone, which means every ADU also needs a Coastal Development Permit (CDP) on top of the standard San Diego DSD review. CDP review adds 2-6 months, and lots inside the La Jolla Shores Planned District face additional design overlay rules that limit roof pitch and exterior materials. Builder bids here typically run 15-25% above San Diego median because of restricted site access on narrow streets and steeper lots.
Sample real-world fee example
Scenario: 700 sq ft detached ADU on a typical La Jolla lot
| Plan check (mid) | $1,200 |
| Building permit (mid) | $1,800 |
| Utility connection (low end) | $2,500 |
| Misc fees (records, inspections) | $1,500 |
| TOTAL (rough mid example) | ~$6,500 |
Common La Jolla ADU permit mistakes
- Skipping the Title 24 energy compliance docs at submittal — adds 4-6 weeks of correction cycles.
- Confusing the AB 681 impact-fee waiver — it only applies to ADUs strictly under 750 sq ft of conditioned floor area.
- Missing the separate water-meter and sewer-capacity applications, which run on a parallel track from the building permit.
- Missing the Coastal Development Permit — required citywide because La Jolla is entirely in the Coastal Zone.
- Underestimating slope-stability geotech on hillside lots above the Mt. Soledad grade break.
- Not budgeting for the La Jolla Shores Planned District exterior design overlay (limits roof pitch and exterior materials).
How La Jolla compares nearby
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