Permit Required? Required
Typical Fee Range $1,000–$3,000 New construction is $0.40 per sq. ft. plus major trade fees.
Fee Method Size-based
Apply Online Apply at Development Services Department →

What's Required in Fort Worth

  • Residential New Construction fee of $0.40 per sq. ft. applies.
  • Mandatory building plan review fee of $75.
  • Certificate of Occupancy fee of $150 required.
  • Must include full kitchen and bathroom facilities.
  • Separate or combined electrical/plumbing permits mandatory.
  • Zoning district must allow for accessory dwellings.

How to Get a ADU Permit in Fort Worth

1

Step 1: Zoning Audit

Use Permit Assist to verify if an ADU is allowed on your lot.

2

Step 2: Submit Plans

Provide architectural sets for the $75 plan review.

3

Step 3: Online Filing

Apply for 'Residential Building - New' in the Accela portal.

4

Step 4: Pay Impact Fees

Pay based on square footage and applicable trade tiers.

5

Step 5: Occupancy Permit

Final $150 fee for the Certificate of Occupancy upon completion.

Frequently Asked Questions

New construction is billed at $0.40 per square foot.
Yes, residential COs cost $150 in Fort Worth.
No, electrical, plumbing, and mechanical carry separate fees.