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
Engineering and Development Services: 979-277-6275; Environmental Health/floodplain/OSSF: 979-277-6290; after-hours non-emergency reporting: 979-277-7373
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
Washington County Engineering and Development Services, Environmental Health Division is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
No verified online portal was located in the reviewed public materials. Contact Engineering and Development Services: 979-277-6275; Environmental Health/floodplain/OSSF: 979-277-6290; after-hours non-emergency reporting: 979-277-7373 and request the current application route before preparing a final submittal.
Washington County publishes no fixed floodplain or subdivision review target. A floodplain determination/development application expires one year after application if authorization or exemption has not issued. Complete OSSF applications and planning materials must be approved or denied within 30 days under 30 TAC Chapter 285. Subdivision infrastructure enters a two-year maintenance period after initial Commissioners Court acceptance before final inspection and acceptance.
Email completed floodplain and OSSF applications and supporting materials to wcrboffice@washingtoncountytx.gov, pay the nonrefundable fee, and wait for written authorization before work. A physical address is required before a floodplain permit issues. The applications authorize Environmental Health to enter for site evaluation, inspection, and photographs; contact 979-277-6290 to coordinate OSSF and floodplain inspections. A completed floodplain project may require a new Elevation Certificate, after which the county issues Floodplain Development Approval if compliant. For subdivision infrastructure, the developer or landowner must notify Engineering at completion and schedule final inspection, correct deficiencies, schedule any reinspection, and repeat the process after the two-year maintenance period before final acceptance.
Washington County expressly does not require a general building or electrical permit for a new structure or addition in its unincorporated area and publishes no adopted IRC, IBC, electrical, plumbing, mechanical, or fire-code edition for such work. County permits and standards still apply to development in a FEMA Special Flood Hazard Area, all new/altered/repaired/enlarged OSSFs, county-road driveways and culverts, utilities in county right-of-way, oil and gas development, addressing, and subdivisions. Floodplain work is governed by the Washington County Rules for Flood Damage Prevention and applicable FEMA/NFIP criteria; OSSFs by the county order, Texas Health and Safety Code Chapter 366, and 30 TAC Chapter 285. The Washington County Subdivision and Development Regulations adopted March 31, 2026 and the county Design and Construction Standards Manual govern subdivision infrastructure, drainage, access, setbacks, and related plan review. A new building or addition outside a municipality requires no county general building or electrical permit. Development outside the mapped Special Flood Hazard Area requires no county floodplain permit. General agricultural production, harvesting, and storage activities—including livestock—within a Special Flood Hazard Area are exempt from floodplain development requirements; qualifying solely agricultural nonresidential barns, sheds, grain bins, and corn cribs may seek a variance to use wet floodproofing instead of elevation but still require a floodplain permit and variance. Routine septic maintenance such as tank pumping requires no OSSF permit, but all new, altered, repaired, or enlarged systems require one regardless of acreage. The 2026 subdivision regulations exclude routine repair and maintenance from their definition of regulated development.
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.