Fees, valuation & enforcement
Permit fees are a project input. Enforcement exposure is a project risk. Use the official schedule where available, then confirm valuation, trade permits, plan review, and inspection charges with the Authority Having Jurisdiction.
Official fee pathway
The final charge may depend on declared construction value, occupancy classification, square footage, plan review, state surcharges, trade permits, technology fees, and inspection activity. Do not use a neighboring city’s fee table as a substitute for this jurisdiction.
Fee desk contact
972-548-5585 (Development Services); 972-548-5576 (Fire Marshal’s Office); 972-548-3727 (Engineering)
Ask the counter to confirm current charges before submitting a project with multiple trades or a change of use.
Financial exposure
Plan for building, mechanical, plumbing, electrical, fire, energy, zoning, septic, right-of-way, or other reviews that the project scope triggers. The lowest initial permit fee is not always the lowest project cost.
Enforcement exposure
When work begins without authorization, the agency may halt the site, require corrective plans, impose additional fees, withhold inspection release, or require concealed work to be exposed for review.
Closeout exposure
A missing final inspection or certificate can complicate occupancy, refinancing, sale, insurance, and utility connection. Preserve the approved plans and signed inspection record through closeout.
Professional field note
Even when a cosmetic or minor project does not require a building permit, zoning, floodplain, shoreline, historic, utility, fire, or right-of-way controls may still apply. Confirm the full jurisdictional picture before work starts.
Source trail
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Collin County Development Services / Engineering and Fire Marshal’s Office is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 972-548-5585 (Development Services); 972-548-5576 (Fire Marshal’s Office); 972-548-3727 (Engineering).
After intake and invoice issuance, which the county says generally takes 2–4 business days, review begins when all fees are paid and can take up to 30 days. OSSF suitability plat review can take up to 45 days after fees are paid. Administratively complete plat packages are considered by Commissioners Court within 30 days. Residential and OSSF permits expire after 365 days of no activity; commercial/non-residential permits expire after 180 days of no activity.
Apply through the Citizen Self-Service portal; it accepts permit and plan applications, schedules inspections, provides review comments and status, and accepts fees. For residential/OSSF questions contact Development Services at 972-548-5585 or DevelopmentServices@co.collin.tx.us; OSSF inspections use DevelopmentSvcInspections@co.collin.tx.us. Apply for a development permit first when a new structure will connect to a new OSSF; staff then sends the associated OSSF permit through the portal. Commercial applicants should contact the Fire Marshal’s Office at 972-548-5576.
In unincorporated Collin County and county-permitting ETJ areas, residential and non-residential projects that disturb ground or add a footprint require a county Development Services permit; commercial projects may also require Fire Marshal permits. New residential dwellings and substantial remodels require a third-party inspection under state law/County Court Order. County floodplain regulations prohibit new residential structures in a FEMA Special Flood Hazard Area and require applicable floodplain permits, elevations, and flood-damage measures. OSSF work is regulated under Texas Health and Safety Code Chapter 366, 30 TAC Chapter 285, and stricter county OSSF rules; no separate county ICC edition was published. Permits are generally not required for re-roofing, new electrical service on an existing structure, roof-mounted solar panels, water-heater replacement, or AC-unit changeout when the project does not disturb ground, add footprint, create a new tenancy, or otherwise meet the county’s extensive-remodel threshold. Non-residential examples also include antenna additions on an existing cell tower without a new ground footprint. County and municipal/ETJ requirements can still change the result.
Why permit costs vary
Building departments commonly calculate charges from valuation, occupancy, floor area, project type, plan review effort, trade scope, state surcharges, and inspection activity. A remodel that appears small on paper may still trigger structural, energy, fire, or utility review. Ask the permit counter which disciplines apply before you finalize the construction budget.
The same discipline applies to enforcement. Correcting unpermitted work after finishes are installed can require demolition, revised plans, additional inspections, and schedule disruption. Authorization is usually the less expensive project-management decision.