ADU cost in College Area, San Diego (2026 permit data)
How much does an ADU cost in College Area?
Single-ADU permits near College Area declared a median $195,200 of construction in 2026 (middle half $85,600–$210,000, 73 permits), 61% above the City of San Diego median of $120,900. Declared value excludes design, City fees and utility work.
102 City building permits near College Area added at least one ADU between January 1 and October 15, 2026. Of these, 34 were conversions and 27 new detached units, so College Area leans toward conversions.
Planning range for a premium build: start from the $210,000 upper quartile and add design, engineering, utility connections and finishes.
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College Area ADU permits by type
| Type | Permits | Low (25%) | Median | High (75%) |
|---|---|---|---|---|
| All single-ADU permits | 73 | $85,600 | $195,200 | $210,000 |
| Conversions (garage/room) | 34 | $73,400 | $112,700 | $197,400 |
| New detached ADUs | 27 | $111,800 | $198,800 | $198,800 |
| City of San Diego, all areas | 750 | $76,000 | $120,900 | $197,700 |
Valuation is the construction value declared to the City, not a quote. Download the area data.
Permit timeline in College Area
The median ADU permit near College Area took 262 days from application to issue, versus 298 days citywide. Correction rounds are usually the longest part. Full timeline · Step-by-step permit guide.
How an ADU project runs
- Feasibility (1–3 weeks): lot, setbacks, sewer lateral, panel capacity.
- Design and engineering (1–3 months).
- City plan check and corrections (262 days median here, application to issue).
- Construction: conversions are generally shorter than new detached builds.
- Final inspection, utilities, occupancy. A panel upgrade often follows; see what comes next.
Questions San Diego homeowners ask
What is the typical ADU budget in College Area?
Single-ADU permits near College Area declared a median $195,200 of construction in 2026 (middle half $85,600–$210,000, 73 permits), 61% above the City of San Diego median of $120,900. Declared value excludes design, City fees and utility work.
Is a garage conversion cheaper than a detached ADU in College Area?
Near College Area, conversions declared a median $112,700 (34 permits) and new detached ADUs $198,800 (27 permits). See the full comparison.
How long does an ADU permit take in College Area?
The 2026 median near College Area was 262 days from application to issue (298 days citywide).
Are City impact fees charged on ADUs?
Development Impact Fees are waived for ADUs under 750 sq ft and for the first two ADUs on a property (SDMC §142.0640). School, plan check and permit fees still apply.
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