BuildingPermitCost

Building Permit Fees in Denton County, TX (2026)

Denton County does not issue building-code permits for houses: cities issue those. For unincorporated areas it charges development (floodplain and site) permit fees, shown here from the official county schedule.

Building in a city inside Denton County? Use that city's page: city building permits are separate.

  • Official county schedule
  • Effective Jun 2, 2026
  • Verified Nov 4, 2026
Minimum fee
—
Plan review
None
$75k addition
$100

Permit fee calculator

Denton County schedule, eff. Jun 2, 2026
Project type
Estimated permit fees $100.00
  1. 1. Building permit fee
    flat fee
    $100.00

Fees are estimates based on the official schedule linked below. Confirm with the permit office before applying. Separate electrical, plumbing, mechanical, fire, impact, utility and school fees are usually not included unless they are listed. BuildingPermitCost is not a government permit office, and this is not legal advice.

What common projects cost

Kitchen or bath remodel
$25,000 value, remodel 300 sq ft
n/a
No building-permit formula for this project type.
Room addition
$75,000 value, addition 400 sq ft
$100.00
$100.00 building permit
New single-family home
$350,000 value, new single-family 2,400 sq ft
$100.00
$100.00 building permit

How Denton County calculates your permit fee

The county charges a building permit fee using a flat $100.00.

The fee table

Residential development permit, new construction, outside floodplain (unincorporated)

A flat $100.00.

Residential addition / accessory structure, outside floodplain

A flat $100.00.

Non-residential development permit, outside floodplain

A flat $220.00.

Added to every matching permit

  • Fire Marshal construction permit, single use building: a fee table based on floor area (Commercial · new construction)

What counts as project value

Not used. Residential development permits are flat fees with no valuation. Fire Marshal commercial construction permits are priced per 1,000 sq ft of structure.

Worked example: a $350,000 new home

  1. Building permit fee: flat fee = $100.00
  2. Total before trade permits: $100.00.

Fees people miss

FeeAmount
Residential Development Permit - Inside the FloodplainWhen: site inside the floodplain (replaces the $100 fee) $250.00 each
Non-Residential Development Permit - Inside the FloodplainWhen: non-residential site inside the floodplain (replaces the $220 fee) $450.00 each
Culvert PermitWhen: culvert required $300.00 each
Driveway InspectionWhen: driveway inspection $75.00 each
Culvert Reinspection FeeWhen: culvert reinspection $75.00 each
Fire Marshal: Commercial Project Mixed UseWhen: mixed-use commercial $250.00 per 1,000 sq ft of structure
Fire Marshal: Building Tenant Finish-OutWhen: tenant finish-out $200.00 per 1,000 sq ft, minimum $100
Fire Marshal: Site Plans (Survey and Area Developed)When: commercial site plans 20% of building plan fees (minimum $150)
Fire Marshal: Certificate of Compliance (fire final inspection)When: commercial fire final $100.00 each
Fire Marshal: Re-inspection new construction (after 2nd re-inspection)When: re-inspection $100.00 each
Fire Marshal: Operating without a permit (investigation fee)When: work without permit 2X permit fee

How to apply

  1. Gather your plans and your project's total value.
  2. Submit to Denton County Development Services (940-349-2990, developmentpermits@dentoncounty.gov); Fire Marshal for commercial construction permits.
  3. Pay the permit and plan review fees when invoiced.
  4. Questions: 940-349-2990

Denton County permit fee FAQ

How much is a building permit in Denton County, TX?

A $75,000 addition: $100.00. A $350,000 new single-family: $100.00. These include every fee the schedule applies to that project; trade permits are separate.

Is plan review included in the Denton County permit fee?

Denton County lists no separate plan review fee for these projects.

How does Denton County determine project value?

Not used. Residential development permits are flat fees with no valuation. Fire Marshal commercial construction permits are priced per 1,000 sq ft of structure.

When did these Denton County fees take effect?

The schedule is effective Jun 2, 2026 (“Development Services fee schedule adopted by Commissioners Court June 2, 2026 (Court Order 26-0390); Fire Marshal schedule undated”). We last checked it against the official source on Nov 4, 2026.