ADU permit cost and fee breakdown in San Ramon, California
GetYourPermit’s researched permit-fee range for a detached accessory dwelling unit in San Ramon, with category estimates and direct reference links used in our investigation.
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ADU size
California prohibits development impact fees for ADUs of 750 sq ft or less, so the 749 / 750 / 751 steps are worth comparing.
Estimated total
GetYourPermit researched range at 750 sq ft
$4,650 – $12,850
This estimate combines our fee-schedule research and project-planning experience. Actual charges vary by parcel, plans, valuation, utilities, and outside agencies.
Typical planning amount
$8,150
Modeled at the 600 sq ft reference.
Where the money goes
These are fee components within the permit process, not separate approvals.
- Separate planning / zoning fee$450 – $1,050
Shown only where the City bills Planning or zoning review as a separate fee.
- Building plan check$1,300 – $3,200
The Building Division’s review of the drawings; part of the Building Permit process.
- Building permit issuance$1,400 – $3,400
The permit issuance charge; where plan check is bundled, the combined amount is carried here.
- Separate trade permits$500 – $1,350
Shown separately only where electrical, plumbing, or mechanical permits are billed outside a combination permit.
- School district fees$400 – $1,700
Possible school-district developer fees based on current thresholds and scope.
- Utility fees$0 – $1,000
Possible water, sewer, electrical, meter, or capacity-related charges.
- Processing, inspection & records$550 – $1,000
Fixed processing, inspection, records, and administrative charges.
- Surcharges, taxes & state fees$50 – $150
Percentage surcharges, construction taxes, and State-mandated charges.
The darker segment is the low end of the range; the full bar is the high end.
Published fee references
Building permit issuance
The permit issuance charge; where plan check is bundled, the combined amount is carried here.
| Fee | Amount | Basis | Source |
|---|---|---|---|
| Building Permit and plan-check fee lookup | Verify on the City’s official website | Verify on the City’s official website | Building Forms and HandoutsLocation: Building Forms and Handouts, Applications, Special Forms and InformationConfirms: The current City Building page identifies the Fee Resolution as the fee authority but does not state numerical Building rates in accessible HTML. |
Plan check
Review of your drawings for code compliance.
| Fee | Amount | Basis | Source |
|---|---|---|---|
| Permit Ready ADU still subject to site-specific plan check | Verify on the City’s official website | Verify on the City’s official website | Accessory Dwelling Units (ADUs)Location: Accessory Dwelling Units, Permit Ready ADU ProgramConfirms: The current City ADU page says site-specific requirements are verified during Building Permit plan-check review. |
These are estimates, not official fees
Use these figures for early budgeting only. They are not a quote, not a government fee determination, and not legal advice. Actual fees depend on your parcel, your plans, your construction valuation, your utility provider, and the fee schedule in force on the day your permit is issued. Confirm every number with San Ramon before you commit money.
City reference pages for verification
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