Collin County, TX Permit Fees (2026)
Building permit fees for unincorporated Collin County, with a free permit fee calculator. Inside city limits? Pick your city below; incorporated cities have their own fee schedules.
A note on these figures from the official schedule. Details
Unincorporated Collin County has no county building-code, electrical, plumbing, mechanical or roofing permit. Work that disturbs ground or adds footprint needs a $75 county development permit, and builders of new homes hire their own third-party inspectors under state law. New commercial buildings also pay the Fire Marshal's plan review ($0.20 per square foot, included in the estimate) and a $100 certificate of compliance per building; work in an existing commercial building pays the $100 certificate and, on septic, a $50 existing-septic review. A septic (OSSF) permit, when needed, is separate. Commercial projects costing $50,000 or more also register with the Texas Department of Licensing and Regulation for accessibility review, paid directly to the state. Work inside a city's limits is permitted by that city.
Every documented fee up top, then calculate an itemized estimate for your job below.
Jump to Permit Fee CalculatorCollin County Fee Schedule FY 2027 by Department (Development Services and Fire Marshal), adopted by Court Order 2026-1106-09-28
Covers building permits.
Apply online at the Unincorporated Collin County permit portal, or call 972-548-5585.
Last verified: November 14, 2026
Jurisdictions in Collin County
Jobs inside city limits are permitted by the city, not the county. Across Collin County's 20 covered jurisdictions, a building permit for a $50,000 remodel runs from $60.00 (Wylie) to $2,200.00 (Josephine).
Unincorporated Collin County Permit Fee Schedule
Every documented rule for each permit type, straight from the official schedule.
Building Permit Fees in Unincorporated Collin County
† Corroborated across official sources, but not printed line-for-line in the linked schedule.
‡ Awaiting confirmation from the jurisdiction.
Homeowners and contractors planning a project check Unincorporated Collin County building permit fees here first.
One sponsor per trade, flat monthly rate.
Unincorporated Collin County Permit Fee Calculator
Pick a permit type and adjust the job value. Total updates instantly, itemized below.
3 documented rates for this permit type; pick the one that matches your job.
A note on these figures from the official schedule. Details
Unincorporated Collin County has no county building-code, electrical, plumbing, mechanical or roofing permit. Work that disturbs ground or adds footprint needs a $75 county development permit, and builders of new homes hire their own third-party inspectors under state law. New commercial buildings also pay the Fire Marshal's plan review ($0.20 per square foot, included in the estimate) and a $100 certificate of compliance per building; work in an existing commercial building pays the $100 certificate and, on septic, a $50 existing-septic review. A septic (OSSF) permit, when needed, is separate. Commercial projects costing $50,000 or more also register with the Texas Department of Licensing and Regulation for accessibility review, paid directly to the state. Work inside a city's limits is permitted by that city.
Estimate only. Confirm with the Unincorporated Collin County building department before applying. Apply online. Phone: 972-548-5585. Permit fees only; excludes impact fees, utility connection charges, and other non-permit charges.
Homeowners and contractors planning a project check Unincorporated Collin County building permit fees here first.
One sponsor per trade, flat monthly rate.
How to Apply for a Permit in Unincorporated Collin County
Apply online through the Collin County Citizen Self-Service portal. For a new home, accessory building or other residential or commercial project that disturbs ground or adds footprint, apply for the development permit; if the project needs a new septic system, staff send the related OSSF permit through the portal, so do not apply for the two separately. Properties in a city's extraterritorial jurisdiction also need an ETJ Verification form signed by that city. Commercial projects also apply to the Fire Marshal's Office through the same portal with the building plan, site plan and fees. New homes and substantial remodels need a third-party inspector, and power releases are requested electronically with the permit number. Collin County permits only properties outside city limits; inside a city, apply to that city. The Fire Marshal's Office is the cashier for all permitting; credit card payments carry a non-refundable convenience fee.
Source: Unincorporated Collin County application instructions
Apply online: Unincorporated Collin County permit portal- Phone
- 972-548-5585
- Fire Marshal
- 972-548-5576, fmadmin@co.collin.tx.us
- Address
- 4690 Community Ave., McKinney, TX 75071
- Hours
- Monday to Thursday, 7:30 a.m. to 4 p.m.; Friday closed to the public
- Source
- https://www.collincountytx.gov/Services/Engineering/Development-Services; https://www.collincountytx.gov/Services/Engineering/Fire-Marshal/commercial-applications
Your name, phone and website right here, next to the building department's contact info, where people look right before they apply.
One expediter per county.