Residential and remodel projects
In Clark County, you need permits and follow-up inspections for new residential construction and for most additions and remodeling projects. A permit technician can help you determine your project requirements and related fees.
Fees are established by county ordinance and are calculated automatically by computer during the application process. You will receive a fee estimate during your initial visit to our office and a final cost when you submit your application. Permit fees cover the cost of processing, plan review and inspections.
Small remodeling projects
Decks - Decks more than 30 inches above grade require a building permit. All decks must meet minimum setback requirements and be constructed to building code standards even if a permit is not required.
Fences - Fences less than six feet in height do not require a permit.
Garden sheds, tool sheds, and play structures - Structures less than 200 square feet do not require a permit.
Lawn sprinklers - A permit is required for the backflow prevention between the sprinklers and the water supply.
Retaining walls - A permit is required for retaining walls over four feet in height, when measured from the bottom of the footing to the top of the wall, and/or for walls that support a load (i.e. slope, driveway, footings). Engineering by a Washington State registered engineer is required for all retaining walls requiring a permit.
Roofing - Re-roofing permits are required for all buildings in Clark County. A separate permit may be required if structural work such as replacing roof sheathing is necessary. Generally, a maximum of two layers of roofing may be applied to a residential structure.
Siding and windows - A permit is required to replace any windows or siding on a structure.
Water heaters, toilets, and sinks - A plumbing permit is required for installation of any plumbing fixtures.
Building a home
- Homebuilder submits application, pays plan review and other fees
- Plans examiner reviews plans
- Permit technicians process application
- Permit technician issues permit
- Work may begin
- Inspector inspects construction at important stages
- Permit technician issues Certificate of Occupancy
Find out if your New Home Construction application is eligible for LEAN processing.
For additions and new construction, required permits such as plumbing, heating and cooling, water/sewer connection and road approach will be included in a Residential Combination Permit. Lawn sprinklers and woodstoves require separate permits. In some instances, environmental permits may also be required.
If your project involves electrical work, connection to public water or sewer, or connection to an existing septic system, you will need additional permits and approvals from other agencies.
- Residential building permit application and submittal checklist - Checklist for building and plot plans and other items needed to submit your application.
- Residential construction guide - Worksheet and construction drawings that can be used for additions or one-story free standing structures of 800 square feet or less.
- Residential plan review - Partial list of common code items.
- Erosion control plan - All land disturbing activities require a signed erosion control agreement before a building permit is issued.
- Fire separation requirements - Requirements for buildings on residential lots.
- Structural design information - Structures not conforming to the prescriptive criteria must meet these specifications.
- Construction details - typical details provided for common code requirements