Residential Addition in Sandy, Utah
Required for adding livable square footage to an existing single-family home, including room additions, garage conversions, and attached accessory apartment additions. Fee is based on total project valuation.
Verified 2026-06-29 · Source
When you need this permit
- Addition to an existing single-family or duplex residential structure
- Complete drawings showing existing structure and proposed addition
- Site plan with updated setbacks and lot coverage
- Energy code compliance for new conditioned space
Required documents
- Req
Building Permit Application
Submit via Sandy City online permit portal or in person at 10000 Centennial Parkway
- Req
Construction Plans
Existing and proposed floor plans, elevations, sections, and structural details
- Req
Energy Compliance Documentation
REScheck or equivalent for new conditioned square footage
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Addition — total valuation < $10,000 | $345 | Sandy City 2026 Consolidated Fee Schedule, § 3122 Building Permit Fees, Residential Permits — Addition |
| Addition — total valuation $10,000–$50,000 | $527 | Sandy City 2026 Consolidated Fee Schedule, § 3122 |
| Addition — total valuation $50,000–$100,000 | $1,987 | Sandy City 2026 Consolidated Fee Schedule, § 3122 |
| Addition — total valuation $100,000–$250,000 | $2,867 | Sandy City 2026 Consolidated Fee Schedule, § 3122 |
| Addition — total valuation $250,000–$500,000 | $4,584 | Sandy City 2026 Consolidated Fee Schedule, § 3122 |
| Addition — total valuation $500,000–$1,000,000 | $6,196 | Sandy City 2026 Consolidated Fee Schedule, § 3122 |
| Addition — total valuation $1,000,000–$2,500,000 | $8,614 | Sandy City 2026 Consolidated Fee Schedule, § 3122 |
| Addition — total valuation > $2,500,000 | $11,001 | Sandy City 2026 Consolidated Fee Schedule, § 3122 |
| Plan Review Fee | 65% of the building permit fee | Sandy City 2026 Consolidated Fee Schedule, § 3122 |
| State Building Fee Surcharge | 1% of total permit fee | Sandy City 2026 Consolidated Fee Schedule, § 3122 — state-regulated surcharge |
| Re-Inspection Fee | $70 | Sandy City 2026 Consolidated Fee Schedule, § 3122 |
Review timeline
~7–21 business days
Typical estimate — confirm current times with the Sandy building department
Inspection process
- 1
Foundation / Footing
Before concrete pour if addition requires new foundation work
- 2
Framing
After framing and rough-in MEP work — before insulation or wall cover
- 3
Insulation
Verify insulation meets adopted IECC requirements before drywall
- 4
Final
All work complete; addition approved for occupancy
Tips
- Accessory apartments within additions require an Accessory Apartment permit — use that category if adding a separate living unit.
- Have a contractor cost estimate ready; fees are based on total project valuation.
Frequently asked questions
- Do I need a permit to add a room to my house?
- Yes. Any addition to a residential structure in Sandy requires a building permit regardless of size.
Sources & verification
Verified against official sources. Last reviewed 2026-06-29.
- Sandy City Building & Safety Division — official building department
- Sandy City 2026 Consolidated Fee Schedule (PDF)
- Sandy City Building Permits
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Sandy building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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