What You’re Allowed to Build in
County of Davis ADU Local Zoning Laws
KEY RULES AT A GLIMPSE
Size and Separation
Maximum size: 1200 sqft
Side/rear setbacks: 4 feet
Two story: Yes
Building separation: 6 feet
Additional Requirements
Soils Report: No
Building Verification Survey: No
Coastal permit (in some areas): No
Stormwater Mitigation: No
Regulations for Accessory Buildings
Permission for Accessory Dwelling Unit
Permission for an Accessory Dwelling Unit is not specified in the city code.
Permission for Accessory Buildings
Yes
Zoning Districts
| AE | Agriculture Estate/Limited Agriculture |
| A-1 | Limited Agriculture |
| A-5 | Agriculture And Farm Industry |
| A-10 | Agriculture And Farm Production |
| R-1 | Residential Single-Family |
| R-2 | Residential Two-Family |
| R-3 | Residential Multifamily |
Maximum Size of the Accessory Buildings
No detached dwelling in the County shall be less than 600 square feet.
No accessory buildings, structures, or parking spaces, except swimming pools, can cover more than 25% of the required minimum rear yard, and no accessory building(s) can exceed 1,000 square feet.
Maximum Height of the Accessory Buildings
Height limits do not restrict the construction of necessary roof structures or equipment, as long as no additional floor space is created above the limit.
Additional Notes
Accessory buildings can only be built on a lot after the principal building is erected, unless both are constructed at the same time.
Only one dwelling structure is allowed per building lot.
Municipal Department Contact Details
| Department | Contact Details | |
Building Inspection | Contact Number | (801) 451-3279 |
| Address | 61 South Main Street Farmington, UT – 84025 | |
Planning & Zoning | Contact Number | (801) 451-3279 |
| Address | 61 South Main Street Farmington, UT – 84025 | |
Zoning Regulations
Height and Area Regulations of Zoning Districts
| Development Standards | AE | A-1 | A-5 | A-10 | R-1 | R-2 | R-3 |
| Minimum Lot Area (sq. ft.) | 1/2 acre | 1 acre | 5 acre | 10 acre | 9000 | 9000 | 9000 (plus 2000 for each additional unit over two in each building) |
| Maximum Height (ft) | 35 | 35 | 35 | 35 | 30 | 30 | 35 |
| Front Setback (ft) | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Side Setbacks (ft) | 10 | 10 | 10 | 10 | 8 | 8 | 8 |
| Rear Side Yard (ft) | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Reference | https://daviscounty.municipalcodeonline.com/book?type=ordinances#name=Section_15.20.1509A_Part_I_R-1_Residential_Single-Family | ||||||
Application Process for Building Permit
| Process | Requirement | Details |
Application Submission | Digital set of plans/blueprints | Include a site-plan with setbacks noted on all four sides |
| Site plan details | Show property address, actual lot dimensions, size and location of all structures, driveways, parking facilities, side yards, front and rear setbacks, abutting streets, north arrow, scale, and assessor’s parcel number. | |
| Contractor information | Provide name, business address, and Utah State license number for General Contractor, Electrical Contractor, Plumbing Contractor, and Mechanical Contractor. | |
| Sewer connection verification (if applicable) | Written verification from the respective sewer district or approval from Davis County Health Department for a septic tank. | |
| Additional documents (if applicable) | Improvement Agreement, Release Waiver and Assumption of Risk, Permanent Power Agreement (for new construction), Owner/Builder Certification Form (if no contractors are used). | |
| Permit for work in County right-of-way | Required from the Public Works Department, 650 North 1500 East, Fruit Heights | |
| Plan Review | Detailed project plans | Include site plan, floor plans, elevation drawings, structural details, electrical, plumbing, and mechanical plans. |
| Revisions (if necessary) | Address review comments | Make necessary revisions to the plans and resubmit if there are issues identified during the review process. |
| Permit Issuance | Approved application | Once all plans are approved, the building permit is issued and must be displayed at the construction site. |
| Inspections | Scheduled inspections | Inspections required at various stages (foundation, framing, electrical, plumbing) during construction. |
| Final inspections and certificate occupancy | Completion of construction | A final inspection is conducted. If passed, a Certificate of Occupancy (CO) is issued, allowing legal occupancy of the building. |
| Reference | https://www.daviscountyutah.gov/docs/librariesprovider29/building-permits/building_permit_requirements_-_home.pdf?sfvrsn=2 | |
Fees for Building Permit and Application Process
| Process | Permit | Fee |
| Building Plan Review | Preliminary building permit review | 60% of the building permit fee |
| Site Plan | Planning Commission | $200.00 |
| Accessory Units | Permit fee | $200.00 |
| New Construction | Minimum permit fee | $1,000.00 |
| Remodel or Addition to Existing Construction | Minimum permit fee | $500.00 |
Zoning and Land Use Fees | Conditional Use Permit | $500.00 |
| Rezoning | $250.00 | |
| Excavation Permit for native material removal | $250.00 | |
| Zoning Ordinance Amendment | $250.00 | |
| Appeals Fee | $200.00 | |
| Reference | https://daviscounty.municipalcodeonline.com/book | |
Davis County Building Permit Fee Schedule
| Valuation Range | Fee or Fee Plus Multiplier | Maximum Fee Amount Per Range |
| $0.00—$7,500.00 | $200.00 | $200.00 |
| $7,501.00—$15,000.00 | $200.00 + 0.025 per dollar over $7,500.00 in valuation | $387.50 |
| $15,001.00—$25,000.00 | $387.50 + 0.0188 per dollar over $15,000.00 in valuation | $575.50 |
| $25,001.00—$50,000.00 | $575.50 + 0.0141 per dollar over $25,000.00 in valuation | $928.00 |
| $50,0001.00—$100,000.00 | $928.00 + 0.0106 per dollar over $50,000.00 in valuation | $1,458.00 |
| $100,001.00—$250,000.00 | $1,458.00 + 0.0080 per dollar over $100,000.00 in valuation | $2,658.00 |
| $250,001.00—$500,000.00 | $2,658.00 + 0.006 per dollar over $250,000.00 in valuation | $4,158.00 |
| $500,001.00—$1,000,000.00 | $4,158.00 + 0.0045 per dollar over $500,000.00 in valuation | $6,408.00 |
| $1,000,001.00—$2,000,000.00 | $6,408.00 + 0.0034 per dollar over $1,000,000.00 in valuation | $9,808.00 |
| $2,000,001.00—$5,000,000.00 | $9,808.00 + 0.0026 per dollar over $2,000,000.00 in valuation | $17,608.00 |
| $5,000,001.00 and above | $17,608.00 minimum + $96.00 per hour for each hour of service exceeding 183 hours* | * |
| *For projects over $5 million requiring more than 183 service hours, the Permittee must pay Davis County within 30 days of receiving an invoice. Davis County may issue multiple invoices based on project scope. Davis County may issue multiple invoices based on project scope. |