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Codes, exemptions & field inspections

Build to the adopted code. Verify every exception.

This guide translates the available agency record into a preconstruction checklist for structural scope, minor work, and inspection release. The adopted code and the issuing official control when a field condition is disputed.

Regulatory framework

The code baseline for Washington County.

Washington County does not issue building permits; its official permit page directs applicants to the city or township where the property is located. The county administers its Development Code in retained unincorporated areas and countywide SSTS and buffer functions, including subdivision, shoreland, floodplain, mining, buffer, and official-map regulations. The applicable Minnesota building-code edition and local amendments must therefore be confirmed with the municipal building authority; the county does not publish a separate county-enforced 2026 building-code edition.

Inspection lane

Building inspections must be scheduled with the city or township building official. Washington County Public Works/Zoning conducts inspections for Development Code compliance; call 651-430-4300. SSTS installation inspections must be scheduled at least 24 hours before the work or inspection by calling Public Health and Environment at 651-430-6655; residential tank inspections may use the county's Survey123 remote-inspection process. Compliance inspections are required before septic-property sale or transfer unless the county's three-year existing-system or five-year new-system certificate exceptions apply.

Minor-work playbook

Understand what may be exempt—and what is not.

Building-permit exemptions are determined by the applicable city or township because Washington County does not issue building permits. For county authority, the Development Code applies only to retained unincorporated areas and specified functions; properties outside the county's shaded zoning-map areas should be checked with the township. No broad county cosmetic-maintenance exemption list was published. County SSTS permits are required for new septic tanks or soil-treatment areas, repairs or replacements, and changes or expansions to the served building or facility.

Field rule

A permit exemption generally addresses one narrow construction trigger. It does not automatically waive zoning, land-use, floodplain, shoreline, fire, energy, electrical, utility, septic, or right-of-way requirements. Obtain written confirmation when the project involves a new structure, structural alteration, change in occupancy, or concealed work.

Inspection pipeline

Keep the work visible at every release point.

  1. 1

    Request with lead time

    Building inspections must be scheduled with the city or township building official. Washington County Public Works/Zoning conducts inspections for Development Code compliance; call 651-430-4300. SSTS installation inspections must be scheduled at least 24 hours before the work or inspection by calling Public Health and Environment at 651-430-6655; residential tank inspections may use the county's Survey123 remote-inspection process. Compliance inspections are required before septic-property sale or transfer unless the county's three-year existing-system or five-year new-system certificate exceptions apply.

  2. 2

    Preserve access

    Do not cover framing, reinforcement, wiring, piping, damp-proofing, or life-safety work until the required inspection has been completed and documented.

  3. 3

    Close the record

    Retain the approved plans, inspection approvals, correction responses, and final certificate or occupancy release with the property file.

Contractor verification

Verify the builder before the contract is signed.

Use the state licensing system to verify active registration, trade credentials, bond status, and liability coverage where available. Match the legal business name to the proposal and permit application.

Verify contractor ↗

Planning reference

Keep the parcel rules beside the building plans.

A building permit is only one part of statutory compliance. Check the local zoning, ordinance, map, or land-use reference before finalizing setbacks, height, lot coverage, access, drainage, or accessory structure placement.

Open planning reference ↗

Source trail

Official sources for this profile

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.

Agency websiteOpen official source ↗Permit portalOpen official source ↗Application instructionsOpen official source ↗Fee scheduleOpen official source ↗Planning or zoning referenceOpen official source ↗Contractor license lookupOpen official source ↗

Project questions

Frequently asked questions for Washington County

Who handles permitting for this jurisdiction?

This record is marked Municipal Fallback. Confirm whether a city, state agency, or other local authority controls the parcel before filing.

How should I begin an application?

Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact Public Works/Zoning: 651-430-4300; Public Health and Environment/SSTS: 651-430-6655.

How long might review take?

For county conditional-use applications, the Planning Advisory Commission holds a public hearing within 60 days after staff determines the application complete; Board of Adjustment matters generally have 60 days to decide, with a possible additional 60-day extension. No ordinary building-permit timeline is published because municipalities issue those permits. The county encourages online or in-person SSTS submissions for the quickest processing but publishes no fixed routine duration.

How are inspections scheduled?

Building inspections must be scheduled with the city or township building official. Washington County Public Works/Zoning conducts inspections for Development Code compliance; call 651-430-4300. SSTS installation inspections must be scheduled at least 24 hours before the work or inspection by calling Public Health and Environment at 651-430-6655; residential tank inspections may use the county's Survey123 remote-inspection process. Compliance inspections are required before septic-property sale or transfer unless the county's three-year existing-system or five-year new-system certificate exceptions apply.

Which codes and exemptions should I review?

Washington County does not issue building permits; its official permit page directs applicants to the city or township where the property is located. The county administers its Development Code in retained unincorporated areas and countywide SSTS and buffer functions, including subdivision, shoreland, floodplain, mining, buffer, and official-map regulations. The applicable Minnesota building-code edition and local amendments must therefore be confirmed with the municipal building authority; the county does not publish a separate county-enforced 2026 building-code edition. Building-permit exemptions are determined by the applicable city or township because Washington County does not issue building permits. For county authority, the Development Code applies only to retained unincorporated areas and specified functions; properties outside the county's shaded zoning-map areas should be checked with the township. No broad county cosmetic-maintenance exemption list was published. County SSTS permits are required for new septic tanks or soil-treatment areas, repairs or replacements, and changes or expansions to the served building or facility.

Field sequencing matters

The inspector needs to see the work at the right moment.

Code compliance is not only a plan-review exercise. Footings, reinforcement, framing, fireblocking, wiring, piping, insulation, weather protection, and life-safety systems each have points where the work must remain accessible. Build the inspection calendar into the trade schedule instead of treating it as a final administrative step.

When a project qualifies for a narrow minor-work exemption, keep a written explanation of why it qualifies and confirm that related zoning, utility, fire, energy, or environmental rules do not create a separate approval requirement.

Closeout file

Keep the approved plan set, inspection approvals, correction responses, contractor license verification, final certificate, and any occupancy release together. A clean record protects the owner, builder, lender, insurer, and future buyer.