Residential Additions

All Residential Living Area Additions regardless of size, require an approved permit by the Building Inspections Division. Residential additions include: Living Area (Conditioned Space), Deck, Patio, Porch.

All construction shall comply with latest adopted codes including but not limited to the 2021 International Residential Code (IRC). With the recommended amendments of the North Texas Council of Governments (NTCOG).

View Residential Addition Guide(PDF, 290KB).

Apply Online

Step 1.Review Requirements

The following is required prior to issuance of a Residential Living Area Addition(s):

  • Address and legal description of project
  • Owner, Contractor and/or Architect information
  • Square footage and area involved
  • Class of work, description (electrical, plumbing, mechanical), valuation and market value of property
  • Site Plan
    • Property line
    • Existing easements
    • Location of proposed addition
    • Addition dimensions
    • Setbacks from property lines and other structure
  • Floor plan showing each room, proposed use, and square footage of each area with door and window sizes noted.
  • Electrical, Plumbing and Mechanical plans
  • Energy Code Compliance report showing compliance of adopted IECC (Example: REScheck)
  • Braced (Shear) wall design shall be engineered or show compliance with Chapter 6 of the IRC
  • Foundation plan designed and sealed by a Texas-registered engineer

Step 2.Apply Online

You can apply online for a building permit through the City of Grand Prairie's Customer Self-Service portal. First time users will need a valid email address to set up an account. It takes about 5 minutes to create a new account.

Apply Online

What next?

After completing the online application, permits are processed in approximately 5-10 business days. Depending on updates needed from the applicant, as this can result in longer approval times.

Phone / In Person

You are welcome to call or visit in person for help submitting your online application.

Phone: 972-237-8230


City Hall - Building Inspections Division
300 W. Main Street
Grand Prairie, Texas 75050

Business Hours:
8:00 a.m.- 5:00 p.m. Monday - Friday