Garage Conversion Permit and Plan Cost across San Diego County
Standalone architectural drawings and permit coordination for a garage conversion run $3,000-$8,000 in San Diego County when priced separately from the build. On a full conversion project, this cost is typically folded into the overall scope rather than billed as a line item.
What moves the price
- Whether structural calculations are required (removing the garage door opening usually requires them)
- Title 24 energy compliance documentation for conditioned space
- Number of plan check review cycles before approval
- City vs. county jurisdiction (unincorporated areas route through San Diego County Planning and Development Services)
What's included
- Architectural floor plan and elevation drawings
- Structural calculations where the scope requires them
- Title 24 energy compliance forms
- Permit application submittal and plan check response coordination
- Scheduling of required inspections through final sign-off
Common questions
Can I submit garage conversion plans myself without an architect?
Some jurisdictions accept owner-prepared drawings for simple scopes, but most garage conversions involve structural changes (removing the garage door opening) that require a licensed professional's stamp. Check with your specific city or county building department before starting drawings.
How long does plan check take for a garage conversion?
Timelines vary by jurisdiction and current review volume, and can range from a couple of weeks for a straightforward scope to several months for a more complex full ADU in a jurisdiction with a backlog. Ask the local building department directly for current turnaround times.
Does California law limit how much a city can charge in permit fees for an ADU?
State ADU law places limits on certain impact fees for smaller ADUs, but exact fee schedules are set and updated by each city or the county. Confirm current fees directly with the jurisdiction before budgeting.
Need a written permit cost for your project?
Insured local crews across San Diego County put the scope in writing.