Washington

Building permits in Clark County, Washington

Of the 10 common home projects we have verified in Clark County, 5 need a permit outright and 5 depend on size or scope. Click any project for the full rule, fee, and how to apply.

By Mario Bailey Last checked · 2 official sources

Verified against official sources
Project types verified
10
in Clark County

Clark County Community Development, Building Safety

How to actually get a permit in Clark County

By Mario Bailey Last checked Read from 6 Clark County documents

What needs a permit, and what doesn’t

Clark County’s Building program says it reviews and inspects permits “in the unincorporated areas of Clark County and the town of Yacolt,” so a project inside any other incorporated city is outside this section. The Residential Permits page lists decks among the structures its ADS permit covers, and that same page says a deck is exempt if it does not exceed 200 square feet, is not more than 30 inches above grade at any point, is not attached to a dwelling, does not serve a required exit door, and is not built for a hot tub or pool; Building FAQs separately exempts an exterior entry landing proportionate in size to the entry. Building FAQs says “garden sheds that are larger than 200 square feet require a permit,” and any size shed in a mobile home park or multi-family zone needs one.

How CC LMS works, and how to reach staff

Every Clark County building permit, including a deck’s ADS permit and a shed’s building permit, is applied for online through the county’s Land Management System, CC LMS: create an account, create the permit, pay the applicable fees, and submit for processing. Clark’s process notice for building permits states, “Online application submittal is required and any initial submittal fees must be paid,” and the county’s Building page adds, “We have implemented electronic plan review and no longer accept paper submittals.” The email-booked submittal appointment, made by writing to permitservicesappt@clark.wa.gov, is itself virtual: “All intake appointments are conducted virtually.” Any in-person visit to the Permit Center needs its own appointment too: “All in-person services at the Permit Center require an appointment.” Neither is an alternative to applying online.

The fee, worked for a shed and for a deck

Clark’s Building Fees table, Clark County Code 6.140.030, prices a deck as a single line: “Simple garage, carport, patio cover or deck” costs a flat $350.50, which the table says “includes issuance and state fee.” The table has no line for a shed; its residential permits are otherwise priced on “Total Valuation”: $94 for “issuance of permit,” then $75 for “$0 to $2,000.00,” $100 for “$2,000.01 to $5,000.00,” and $250 for “$5,000.01 to $10,000.00,” plus a separate “Residential plan review” at “65% of permit fee” and a “State Building Code issuance fee” of $4.50.

Booking inspections, and what a missed one costs

Once either permit is issued, inspections for a CC LMS permit are requested by phone at 564.397.2477 or by texting SCHEDULE, CANCEL or RESCHEDULE to 866.714.5489; the county’s own notice says “our IVR system is available for scheduling inspections for permits in CC LMS only.” A Tidemark permit instead calls 564.397.4912. Requests “must be made by 10 pm the day before the requested inspection,” and next-day inspections “are not guaranteed”; inspections generally run “between 8 am and 4 pm Monday through Thursday and between 8 am and 3 pm on Friday.” Both worked examples share one rule: the inspections page lists “ADS,” the deck’s own permit type, and “ACC for garage, shed, or shop” among the types that need a Pre-Construction Erosion inspection before a Footing Steel or Zoning Setback inspection. The same notice adds that, upon re-inspection, failing to comply with the first correction notice costs $148 and each subsequent failure $296.

What Clark County does not publish

Our rows carry no processing time for a Shed Permit or a Deck Permit, and none of the pages this section draws from name a day-count target for plan review or permit issuance. The fees table prices a shed by valuation rather than a flat number, so there is no single dollar figure Clark publishes for “a shed” the way there is for a deck’s flat $350.50. If Clark County publishes a turnaround estimate elsewhere, it was not in the documents this section draws from.

Documents read for this section

Sources

Look up a permit in Clark County

Clark County runs an online permit portal. Many local portals let you check application status, search permit records, and view inspection results without calling the office.

Search the Clark County permit portal

Screenshot of the Clark County permit portal
The Clark County permit portal as captured .

What needs a permit in Clark County

Of the 10 common home projects we have verified in Clark County, 5 need a permit outright and 5 depend on size or scope. Click any project for the full rule, fee, and how to apply.

ProjectPermit needed?ThresholdTypical fee
Deck PermitIt dependsExempt only if the deck does not exceed 200 square feet, is not more than 30 inches above grade at any point, is not attached to a dwelling, does not serve a required exit door, and is not used for a hot tub or pool; all other decks require a permit.See schedule
Electrical PermitPermit requiredElectrical work in Washington requires a permit and inspection, with a few exceptions listed in chapter 296-46B-901 WAC; in unincorporated Clark County electrical permits are issued by state Labor and Industries, not the county.See schedule
Fence PermitIt dependsFences seven feet or less in height do not require a permit; fences over 7 feet in height require a Fence/Retaining Wall (FRT) permit.See schedule
HVAC PermitPermit requiredMechanical permits cover installation of heating and cooling equipment such as furnaces, heat pumps, A/C units, ductless mini splits and gas piping; for additions and new construction this work is included in the ADS or NHC permit.Application rev 1.30.23: $94 issuance plus per-appliance fees including furnace or heat...
Patio PermitIt dependsPatio and concrete slabs on the ground grade are exempt from permit but may not be built on easements; adding a patio cover or enclosing a covered patio requires a building permit under the ADS permit type.See schedule
Plumbing PermitPermit requiredA plumbing permit is required for installation of any plumbing fixtures, including water heaters, toilets and sinks.Application rev 9.2.25: $94 issuance plus per-item fees including plumbing fixture/trap...
Pool PermitIt dependsA permit is required for any structure intended for swimming or recreational bathing that contains water over 24 inches deep, including in-ground, aboveground and on-ground pools, hot tubs and spas.See schedule
Roof Replacement PermitPermit requiredRe-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.County handout rev 7.16.18: residential re-roofing permit $220 plus $94 issuance and...
Shed PermitIt dependsSheds over 200 square feet require a building permit; sheds of 200 square feet or less are exempt if they meet setbacks and easements, but any size shed in a mobile home park or multi-family zone requires a permit.See schedule
Solar PermitPermit requiredSeparate SOL permits are required for ground mounted units or panels mounted on existing buildings; in new construction the solar panels are included in the NHC or ADS permit.See schedule

What you can build in Clark County

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Clark County permit fees compared with nearby Washington localities

Washington locality Deck PermitHVAC PermitElectrical Permit
Clark County See schedule Application rev 1.30.23: $94 issuance plus per-appliance... See schedule
Bellevue ...fee by valuation per Table 4 of Ordinance 6879, $44... ...8 of Ordinance 6879: furnace up to 100,000 BTU $59... ...fee by valuation per Table 6 of Ordinance 6879, $79...
King County ...approximately 14% on January 1 2026 plus a $126... Mechanical installation-only permit is a flat $183... ...single or two family home wiring starts at $119.90...
Pierce County ...PCC Table 17C.10-1-B (valuation based): $69.00 for... Issue each mechanical permit fee $58.00, plus unit fees... See schedule

Each cell is the opening clause of that Washington jurisdiction's own fee schedule; the full wording and source sit on each permit page.

Clark County permit questions, answered from the data

Do you need a permit in Clark County?
For most projects, yes. Of the 10 permit types we have verified for Clark County, 5 always require a permit (for example an electrical permit), 5 depend on size or scope (a deck permit, for instance). Each Clark County permit type's page states the exact rule and its source.
How much does a permit cost in Clark County?
Clark County publishes a fee for 10 of the 10 permit types we cover, each quoted on its page from the jurisdiction's own schedule (linked on every page that carries one). Fees are set by Clark County Community Development, Building Safety; we do not estimate or mark them up.
Where do you apply for a permit in Clark County?
Clark County Community Development, Building Safety issues permits in Clark County, with an online portal for applications, plan uploads and status checks, and takes questions at 564.397.2375. The Clark County official page and portal are linked in the office section above.

How the Clark County pages were verified. 10 permit types, 10 distinct official sources, most recently checked . Every rule is read from Clark County Community Development, Building Safety or the applicable code and cited on its page; anything we could not confirm for Clark County is marked rather than estimated. How we verify.

Permitting activity in Clark County

In 2025, Clark County authorized permits for 3,250 new residential housing units (2,190 single-family, 1,060 in multi-family buildings), valued at $1.3B , down from 3,594 the year before. That works out to about 6.1 permits per 1,000 residents. It is a useful gauge of how busy the local permit office is.

Source: U.S. Census Bureau, Building Permits Survey, 2025 annual data · population 532,119.

From the Library

Other permit offices in Washington