Bathroom Remodel Permit in Edmonds, WA (2026)

Research by DoINeedAPermit Research Team · Updated May 2026

The Short Answer

A full bathroom remodel in Edmonds requires a permit if you relocate plumbing fixtures, add electrical circuits, install new exhaust ventilation, convert a tub to shower, or move walls. Surface-only work (tile, vanity swap, faucet replacement in place) is exempt.

Edmonds Building Department enforces the 2021 Washington State Building Code (adopted statewide) but applies its own local amendments and plan-review process that can significantly extend your timeline compared to neighboring Shoreline or Lynnwood. Edmonds has no local-only bathroom code amendments, but the city's plan review is conducted in-house by City of Edmonds Building and Planning staff, typically 2–5 weeks for standard bathroom remodels; some cities in the same region outsource and are faster. Edmonds also enforces lead-paint disclosure and testing requirements for pre-1978 homes (RCW 70A.230), which delays the permit issuance if your home was built before 1978 — the city may require an EPA-certified lead inspector before work starts on interior surfaces. Crucially, Edmonds requires proof of contractor licensing (or owner-builder affidavit for owner-occupied) at permit issuance, and the city cross-checks this against Washington Department of Labor and Industries records, which occasionally flags applicants and creates delays. The city offers online permit filing through its portal, but bathroom remodels with fixture relocation or wall changes typically require a full plan set (floor plan, electrical, plumbing, cross-sections for waterproofing), so many contractors still submit paper or PDF plans in person at City Hall in downtown Edmonds.

What happens if you skip the permit (and you needed one)

Edmonds Building Department can issue a stop-work order within 24 hours of discovery, halting all labor; violators face fines of $250–$500 per day of continued work plus mandatory permit and full re-inspection ($400–$1,200 total remediation costs).
Insurance claim denial: unpermitted plumbing or electrical work voids coverage for water damage or electrical fires, potentially costing $20,000–$100,000+ in uninsured losses.
Home sale disclosure: Washington State Residential Real Estate Disclosure requires you to disclose all unpermitted work; buyer can sue for rescission or damages after discovery during inspection, typically $10,000–$50,000 settlement.
Lender/refinance blocking: unpermitted bathroom work triggers appraisal downvalues and loan denial; FHA and VA loans explicitly require all permitted work, locking you out of favorable rates.

Edmonds full bathroom remodel permits — the key details

The Washington State Building Code (which Edmonds enforces) requires a permit for any bathroom remodel that involves fixture relocation, new electrical circuits, exhaust fan installation, wall removal, or tub-to-shower conversion. The core code sections are IRC P2706 (plumbing drainage and venting), IRC E3902 (GFCI/AFCI outlets in wet areas), IRC M1505 (exhaust fan minimum CFM and ducting), and IRC R702.4.2 (shower/tub waterproofing assembly). Edmonds Building Department does not carve out a specific bathroom-remodel category; instead, the city bundles bathroom work under 'Interior Alteration — Mechanical, Plumbing, Electrical' (SPU permit code). What makes Edmonds unique is that the city requires sealed plans (signed by a licensed architect or engineer) for any bathroom remodel involving fixture relocation or wall changes; many smaller jurisdictions in Washington allow contractor-drawn plans. This sealed-plan requirement adds $300–$800 to your design cost upfront, but it reduces plan-review rejections because the engineer pre-checks code compliance. Edmonds Building and Planning staff are known for thorough reviews — bathrooms frequently get sent back for clarification on waterproofing systems (cement board vs. kerdi membrane vs. pre-sloped tile pans), exhaust fan duct size and termination location, and GFCI/AFCI circuit layout. If your home was built before 1978, Edmonds requires lead-safe work practices (RCW 70A.230.010) and may require a lead-clearance test after completion, adding 2–3 weeks and $800–$1,500 to the timeline.

Edmonds' permit fee structure is based on project valuation (estimated cost of work), applied at 1.5–2% of that valuation, with a minimum of $150. A full bathroom remodel typically values at $12,000–$30,000, resulting in permit fees of $200–$600. The city accepts cash, check, credit card, and online payment via its portal. Once the permit is issued, Edmonds requires four standard inspections: (1) framing (if walls are moved), (2) rough plumbing (before walls are closed), (3) rough electrical (same rough stage), and (4) final inspection. Some contractors bundle framing, plumbing, and electrical into a single 'rough' inspection with Edmonds, which can compress the timeline by 3–5 days. The city's inspection turnaround is typically 2–3 business days; if you fail an inspection, you must re-schedule and re-inspect, adding another 2–3 days. Edmonds allows online request for inspections through its portal or phone (call ahead to confirm current phone number with City Hall), and the city also offers 'quick-turnaround' inspections (same-day or next-day) if you request them at least 24 hours before the work is ready. Lead-paint testing and clearance inspections (for pre-1978 homes) are contracted separately through the city's Health Department and add a third-party inspector layer; allow 5–7 business days for scheduling and results.

Bathroom waterproofing is the single most common rejection point in Edmonds plan reviews. IRC R702.4.2 requires a sealed waterproofing assembly behind all wet areas (tub surround, shower walls, and pan), but the code does not prescribe a specific product. Edmonds reviewers accept three assemblies: (1) cement board (minimum 1/2 inch) plus fully adhered waterproof membrane (fluid-applied or sheet-applied), (2) Schluter-Kerdi or equivalent uncoupling membranes with sealed seams, or (3) prefabricated pan systems (like Prova or Wedi) with sealed thermal-break frames. Many homeowners and contractors assume traditional drywall behind tile is acceptable in older codes, but Edmonds now enforces the 2021 code statewide, which banned drywall in wet areas. Your sealed plans must clearly indicate which waterproofing assembly you are using, include manufacturer specs, and show the layout of seams and transitions. If your plans don't specify, Edmonds will request clarification (a revision that adds 3–5 days). Exhaust fan ducting is the second-most common rejection: IRC M1505 requires a minimum 50 CFM continuous or 100 CFM intermittent exhaust for bathrooms under 100 sq. ft.; if your bathroom is larger, the CFM calculation changes. The duct must be rigid or semi-rigid (not flex duct, which traps moisture), and it must terminate outside (not into the attic or soffit). Edmonds also enforces Washington State Ventilation Standard, which requires that exhaust ducts be airtight to the exterior and not recirculate into occupied spaces. Your plans must show the duct diameter, length, and termination point (roof cap, soffit, or wall penetration). If the duct runs through an unconditioned attic space in Edmonds' climate (4C west Puget Sound), you may need to insulate it to prevent condensation; Edmonds reviewers often flag this, so consider it upfront.

Plumbing fixture relocation triggers several code compliance steps. IRC P2706 governs drainage and venting: when you move a toilet or sink, the drain trap arm (the horizontal run from the fixture to the vent stack) cannot exceed specific lengths (typically 3.5 feet for a toilet, 4 feet for a sink) based on drain size. If your bathroom layout requires a longer trap arm, you must install a secondary vent or a pump (for drains below the main drain line). This is a common issue in older Edmonds homes where the bathroom is far from the main stack. Your sealed plans must show the drain layout, trap arm length, vent routing, and any pump locations. If you are moving a toilet in a second-floor or basement bathroom, Edmonds reviewers will closely examine whether the drain can reach the main stack within code limits; if not, they will request an engineered solution (wet vent, secondary stack, or pump system). Additionally, any new hot-water line requires tempering; IRC P2709 mandates that hot water to lavatory sinks be limited to 120°F (typically via a mixing valve), a detail that must be shown on sealed plans. Edmonds does not require separate permit cards for each plumbing fixture, but all changes must be shown on the single plumbing plan submitted with the permit application.

Electrical work in bathrooms is heavily regulated under IRC E3902 and Washington State amendments. All receptacles in bathrooms must be GFCI-protected (ground-fault circuit interrupter), and as of the 2021 code, all kitchen and bathroom receptacles must also have AFCI protection (arc-fault circuit interrupter) on the branch circuit. For a full bathroom remodel, you typically need a dedicated 20-amp GFCI branch circuit for bathroom receptacles, plus a separate circuit for the exhaust fan (usually 15 amps), and potentially a separate circuit for a heated towel rack or other load if present. Edmonds requires electrical plans to clearly label which circuits are GFCI and which are AFCI, showing panel location and circuit breaker assignment. If your home's electrical panel is already full or if adding new circuits requires a sub-panel upgrade, Edmonds will require that work to be included in the permit and inspected. The city does not allow 'daisy-chaining' GFCI outlets (running multiple outlets off a single GFCI master); each outlet must be independently protected or fed by a single GFCI breaker. Lighting in bathrooms does not require GFCI, but if the light switch is within 6 feet of a sink, it must be on an AFCI-protected circuit. Many DIYers and budget-conscious contractors skip this detail; Edmonds inspectors are trained to flag it, so plan for electrical-plan revisions if this is missed initially.

Three Edmonds bathroom remodel (full) scenarios

Scenario A

Vanity and toilet in existing locations, new tile, new exhaust fan with ductwork — Lynnwood bathroom, built 1995

You are replacing the vanity with a new one in the exact same footprint, replacing the toilet in place, and fully retiling the shower surround. You are also installing a new exhaust fan (the old one is inoperative). This requires a permit because the new exhaust fan with dedicated ductwork to the exterior is a mechanical system change, even though plumbing fixtures stay put. Edmonds Building Department will require a permit application with a floor plan (1/4 inch scale minimum) showing the new fan location, duct routing (size, material, and exterior termination point), and electrical connection detail. If your 1995 home lacks GFCI outlets, Edmonds will also require upgraded outlets on a new GFCI-protected circuit. The waterproofing for the shower surround must be shown on plans as either cement board plus membrane or a Kerdi-type system; drywall behind tile is no longer acceptable under 2021 code. Edmonds does not require sealed architect plans for exhaust-fan-only work (because no structural or major plumbing changes are involved), so you can submit contractor-prepared plans. Expect plan review of 1–2 weeks, followed by two inspections: (1) rough mechanical (exhaust ductwork and electrical rough-in before walls close), (2) final (verify duct termination outside and GFCI outlet installation). Permit fee: $200–$350 (based on ~$8,000–$12,000 estimated valuation). Timeline: 3–4 weeks from permit issue to final inspection. Lead-testing: if home built before 1978, add 2–3 weeks for lead clearance.

Scenario B

Moving toilet to new wall, relocating sink 8 feet, converting tub to walk-in shower — Tudor-style 1952 Edmonds home, main-floor bathroom

This is a full gut-and-rebuild bathroom that requires sealed architect plans because fixture relocation and structural changes are involved. Moving the toilet to a new wall requires re-routing the 3-inch drain and vent stack; because your home is 1952, the main stack is likely a 4-inch cast-iron stack in the center of the house (common layout in older Edmonds properties), so you'll need to route a new 3-inch branch to that stack or install a pump if the new toilet location is below the main line. Your engineer must calculate trap-arm length and confirm it complies with P2706 limits; if the new toilet is more than 3.5 feet from the vent, a secondary vent or pump system is required. Relocating the sink 8 feet may require a new hot and cold supply line and a new drain; again, trap-arm length matters (4-foot max for sink drains). Converting the tub to a walk-in shower introduces a new waterproofing assembly (fully sealed pan assembly, not just wall protection), which is a major code change. Under IRC R702.4.2, the new shower pan must slope 1/8 inch per foot to a floor drain, use a waterproof membrane (not just caulk), and include a thermal break at any concrete slab or structural edge. Pre-fabricated pans (Wedi, Prova, Schluter) are acceptable and reduce on-site waterproofing errors; cement board plus fluid-applied or sheet membrane is also acceptable but requires precision. The lead-paint issue is critical here: your 1952 home is well pre-1978, so Edmonds will require lead-safe work practices (OSHA-certified contractor, containment, and dust control). You may also be required to obtain a lead-clearance test after tile work is complete, adding $800–$1,500 and 5–7 days. Your sealed plans must show: (1) floor plan with new fixture locations and dimensions, (2) plumbing plan (supply, drain, vent, trap-arm lengths, pump location if required), (3) electrical plan (GFCI circuits, lighting AFCI if applicable), (4) detailed cross-sections of the shower pan assembly (1.5 inch scale), (5) wall framing if moving load-bearing walls. Edmonds will likely request 1–2 revisions before approval (typical for pre-1978 homes with structural changes). Plan review: 3–5 weeks. Inspections: framing (if walls moved), rough plumbing, rough electrical, drywall (optional if contractor does taping), final. Permit fee: $500–$800 (based on ~$25,000–$35,000 valuation). Timeline: 7–10 weeks from permit issue to final, plus 5–7 days for lead clearance. Contractor must be Washington State licensed (not owner-builder exempt, because of lead-paint work and structural elements).

Scenario C

New second bathroom added in guest bedroom — owner-occupied 2005 Edmonds rambler, basement conversion

Adding a new bathroom (rather than remodeling an existing one) follows a different code path than bathroom remodeling. This scenario is a common question for Edmonds homeowners doing basement conversions or ADU-style additions. Adding a second bathroom involves new plumbing (supply lines, drains, vents), new electrical, framing walls, and a waterproofing assembly for the shower/tub. Critically, Edmonds treats this as a new 'Habitable Space — Mechanical, Plumbing, Electrical' project, not a remodel, which means it triggers additional code compliance: the new bathroom must have egress (a window with 5.7 sq. ft. minimum area and 3-foot sill height, per IRC R310.1), a dedicated exhaust fan (50 CFM continuous or 100 CFM intermittent, routed outside), and natural light or equivalent LED lighting. If the new bathroom is in the basement and lacks an operable window, you must install mechanical ventilation at 50 CFM continuous, which is stricter than a typical upstairs bath remodel. Your sealed plans must show: (1) floor plan with new bathroom layout, window/egress location, duct routing, (2) section view showing egress window dimensions and well (if below grade), (3) plumbing plan (new supply lines, drain routing to main stack or pump, vent routing), (4) electrical plan (dedicated circuits, GFCI/AFCI protection, lighting on AFCI circuit), (5) structural details for any new framing or load-bearing changes. Edmonds requires a full review by both Building and Planning (Planning checks zoning compliance, lot coverage, setbacks; Building checks code). Adding a second bathroom may trigger zoning review if your lot is in a zone that limits the number of dwelling units or if the addition affects lot coverage or setback requirements. Owner-builder is allowed for owner-occupied work, but Edmonds requires an owner-builder affidavit and proof of workers' compensation insurance or exemption waiver; you must also schedule and pass all inspections yourself. Plan review: 4–6 weeks (includes Planning review). Inspections: framing, rough plumbing, rough electrical, drywall (may be required if spray-foam or other fire-separation materials are used), final. Permit fee: $600–$1,000 (based on ~$30,000–$45,000 valuation for a new bathroom in basement). Timeline: 8–12 weeks from permit issue to final, depending on zoning review complexity. If the addition requires a zoning variance (e.g., lot coverage limit), add 4–8 weeks for variance hearing.

Permit required (new habitable space) | Sealed architect plans REQUIRED | Egress window or mechanical ventilation required | Planning + Building review required (longer timeline) | Plumbing engineer likely required for drain routing to existing stack | Framing inspection required | Owner-builder affidavit allowed (owner-occupied) | Permit fee $600–$1,000 | Inspections: framing, rough plumb, rough elec, drywall, final | Zoning variance possible (adds 4–8 weeks) | Total project $30,000–$50,000+

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Edmonds Building Department plan review process and how to avoid rejections

Edmonds' climate and soil conditions create unique challenges for bathroom remodels, especially for plumbing and waterproofing. The city's Puget Sound region (west Edmonds) has a 12-inch frost depth, while east Edmonds (near Snohomish county border) reaches 30+ inches in winter; this affects any plumbing lines buried below grade or in unheated spaces (like beneath a basement bathroom). Edmonds Building code requires that supply lines in unheated areas be insulated with a minimum 1-inch foam wrap or equivalent to prevent freezing. For bathroom remodels in basements or garages, this is often overlooked, but Edmonds inspectors will flag it during rough-in inspection. Groundwater is also a consideration: much of Edmonds sits on glacial till with high water tables, particularly in lower-elevation areas near the Sound. If you are doing a basement bathroom remodel or new bathroom in a basement, you may need sump-pump or perimeter-drain provisions to prevent seepage; Edmonds does not always require these on the permit, but the city's Health Department (for plumbing issues) may flag it during inspection. For shower waterproofing, Edmonds' rainy climate (50+ inches annually) and high humidity make proper waterproofing critical; damp bathrooms are endemic in older Edmonds homes. The 2021 code's waterproofing mandate is partly a response to this: cement board without a sealed membrane allows water to wick behind tile and cause mold. Edmonds reviewers are alert to this and will insist on fully sealed waterproofing (membrane + seams sealed, or Kerdi with sealed overlaps). If you are doing a historic renovation in Edmonds (the city has a historic district near downtown), the City of Edmonds Historic Preservation Board may require design review of visible elements (like fixture style or tile color) before the permit is issued; this adds 2–4 weeks. The local soil (glacial till mixed with volcanic deposits) is generally stable, so foundation or structural issues are rare, but heavy rainfall can temporarily affect trenching for new drain lines; schedule plumbing work in dry months if possible.

Lead-paint compliance in pre-1978 Edmonds bathrooms — what it really costs and how it delays your project

The timeline for lead compliance is a critical project-management detail. When you submit a bathroom remodel permit in a pre-1978 home, Edmonds issues the permit with a lead-safety condition: 'Work must be performed using EPA-certified lead-safe work practices and documented with training certificates provided to Building Department before final inspection.' The contractor (or you, if owner-builder) must submit proof of EPA RRP certification (or lead abatement license) before a permit card is physically issued. This check can delay permit issuance by 1–2 business days if the contractor's credentials are not on file or need verification. Once work begins, the contractor must contain the work area (plastic sheeting, HEPA filtration), clean daily, and document practices. At final inspection, the building inspector will verify containment was used but will NOT perform lead testing — that is a separate Health Department inspection (optional but recommended, $800–$1,500 for certified lead inspector, 1–2 weeks for scheduling and results). If you want a clearance before occupying the renovated bathroom, hire the lead inspector during drywall finishing, so results are ready by the time the Building inspector does final. If clearance testing reveals contamination (rare in bathroom-only remodels but possible in high-dust scenarios like wall removal), remediation (re-cleaning, specialized HEPA vacuuming) adds another $500–$1,000 and 5–7 days. Budget generously: if your Edmonds home was built before 1978 and you are doing a full bathroom gut, assume 3 additional weeks and $2,500–$4,000 in lead-compliance costs on top of the construction budget.

City of Edmonds Building Department
220 4th Avenue, Edmonds, WA 98020
Phone: (425) 771-0220 (City of Edmonds main line; ask for Building Department) | https://www.edmondswa.gov/building-planning (search 'Edmonds permit portal' to confirm current URL)
Monday–Friday, 8:00 AM–5:00 PM (verify hours before visiting)

Common questions

Do I need a permit just to replace my bathroom vanity and faucet in the same spot?

No. Replacing a vanity, faucet, or toilet in the same location without relocating supply or drain lines is surface-only work and exempt from permitting in Edmonds. However, if you are replacing plumbing trim (faucet, trim ring, supply stops) and discover the supply lines are corroded or leaking, you may need to replace them, which then requires a permit. If you are replacing the vanity and adding a new GFCI outlet where one didn't exist, that electrical upgrade also requires a permit. So: pure swap-in-place = no permit; any new line, fixture relocation, or electrical change = permit required.

My 1994 bathroom has an old 4-inch PVC vent stack that's slow. Can I just run a new drain line to it without a permit?

No. Any new plumbing line that changes the drainage or venting system requires a permit in Edmonds, even if you are connecting to an existing stack. Edmonds Building Department must verify that the new line complies with trap-arm length limits (IRC P2706), that the stack has adequate capacity (4-inch PVC is typically good for 10+ fixtures, so a new bathroom drain is usually fine), and that venting is properly configured. A slow drain is often a maintenance issue (tree roots, sediment), not a venting problem; get a video inspection first. If you do need a new line, the permit is straightforward (1–2 weeks, $200–$400 fee).

Is a sealed architect plan really required for my bathroom remodel, or can I submit contractor plans?

Sealed plans are required by Edmonds Building Department only if your remodel involves fixture relocation, wall removal, or structural changes. If you are staying with existing fixture locations and just replacing tile, vanity, lighting, and exhaust fan, contractor-prepared plans (floor plan, exhaust detail, electrical diagram) are acceptable. However, if you are moving a toilet, sink, or tub, or if you are moving a wall, hire an engineer to seal the plans; it costs $300–$800 upfront but saves rejections and plan-review delays. Sealed plans are also required if you are adding a new bathroom (Scenario C).

How much does an Edmonds bathroom remodel permit actually cost?

Edmonds calculates permit fees at 1.5–2% of estimated project valuation, with a $150 minimum. A typical bathroom remodel values at $12,000–$30,000, resulting in permit fees of $200–$600. Online payment (credit card, e-check) is available via the Edmonds permit portal; cash and check are accepted in person at City Hall. There are no additional 'plan-review fees' or 'inspection fees' — the flat permit fee covers all plan reviews and four standard inspections (rough plumbing, rough electrical, framing if applicable, final).

My bathroom is in a 1973 home. Do I really need lead testing after the remodel, or just lead-safe work practices?

Lead-safe work practices (containment, HEPA cleanup, EPA certification) are mandatory under Washington RCW 70A.230 and enforced at permit issuance. Lead clearance testing (swab test for lead dust) is optional and not required by Edmonds Building Department; however, it is strongly recommended (especially if you have young children or are planning to resell). A clearance test costs $800–$1,500 and takes 5–7 days for scheduling and results. Many Edmonds contractors recommend testing as part of post-renovation quality assurance; if clearance fails, remediation is relatively quick (specialized cleaning, HEPA vacuuming). If you skip testing, you won't violate code, but you won't have documented proof that lead dust was controlled, which could be an issue if you sell the home or a child later tests positive for lead exposure.

If I move my toilet to a new wall but keep the sink in place, is that a full bathroom remodel permit or just a plumbing permit?

It depends on what else you are doing. If you are moving the toilet only (new drain, new vent, new supply line) but leaving the sink, vanity, and shower/tub unchanged, Edmonds typically issues this as a 'Plumbing Alteration' permit (mechanical code category) rather than a full 'Interior Alteration' permit. However, if you are also retiling or re-waterproofing the shower/tub area (which is typical during any bathroom renovation), the city lumps it into a full remodel permit. The distinction is semantic for your project timeline — either way, it's a 2–5 week plan review and 3–4 inspections. Expect a permit fee of $200–$400 for a toilet-relocation-only project, $400–$800 if you are also doing walls, tile, or waterproofing changes.

Can I do a full bathroom remodel myself as an owner-builder in Edmonds, or do I need to hire a contractor?

Edmonds allows owner-builder work for owner-occupied homes. To qualify, you must live in the home, file an owner-builder affidavit at permit issuance, and provide proof of workers' compensation insurance or a waiver (Washington State Department of Labor and Industries). You can do most bathroom work yourself: framing, tile, painting, fixtures. However, for electrical and plumbing work, many jurisdictions (including Edmonds) do not restrict owner-builders from doing the work directly, but you must pass code-compliant inspections. If the electrical or plumbing work fails inspection, you will need to hire a licensed contractor to fix it, which is expensive and adds time. For complex plumbing (new drain routing, secondary vents, trap-arm calculations), hiring a licensed plumber is pragmatic even as an owner-builder. If your home is pre-1978, you must also complete EPA RRP training ($300–$500 for a 2-day or 4-hour online course) before you start work. Bottom line: owner-builder is legally allowed, but bathroom work involves multiple code areas (plumbing, electrical, lead-paint); unless you have experience, hiring a licensed contractor is safer and often faster (fewer re-inspections).

What is the most common reason an Edmonds bathroom remodel gets rejected during plan review?

The top reason is incomplete waterproofing details. Edmonds reviewers expect a cross-section drawing (at least 1.5 inch scale) showing the waterproofing assembly behind the shower/tub surround: cement board thickness, membrane type (fluid-applied, sheet, or Kerdi), seam details, and transition at thresholds or corners. Many contractor-prepared plans just state 'waterproof shower per code' without showing the actual assembly. The second most common issue is exhaust fan ducting: the plan must specify CFM (usually 50–100 depending on room size), duct diameter, material (rigid or semi-rigid, not flex), length, insulation (if in unconditioned space), and exterior termination point (not soffit or attic). The third is plumbing trap-arm length: if you are moving a toilet or sink more than 3–4 feet from the existing vent, the plan must show how the trap arm complies with code or if a secondary vent/pump is required. Submitting plans that address these three details upfront cuts plan-review time in half.

How long does it take from permit issue to final inspection in Edmonds for a bathroom remodel?

For a standard bathroom remodel (fixture in place, new tile, new exhaust fan, no wall changes): 3–4 weeks. For a full gut-rebuild (fixture relocation, wall removal, tub-to-shower conversion): 6–8 weeks. For a new bathroom addition (Scenario C): 8–12 weeks (includes Planning review). These timelines assume no plan-review rejections, no lead-paint complications, and inspections scheduled on first pass. If plan review sends back RFCs (typical 1–2 revisions), add 3–5 days per round. If you fail an inspection (missing GFCI outlet, waterproofing incomplete), add another 3–5 days for re-scheduling and re-inspection. Pre-1978 homes add 2–3 weeks for lead clearance testing. Owner-builder work often takes 1–2 weeks longer because self-scheduling inspections and coordinating subcontractors is slower than a general contractor managing a crew. Bottom line: allow 4–6 weeks for a simple remodel, 8–12 weeks for a full gut with fixture relocation.

Do I need permits for a new exhaust fan if the ductwork already exists and I am just replacing the fan motor?

No, if you are replacing just the fan motor and keeping the existing ductwork, ductwork routing, and exterior termination in place, that is maintenance and exempt. However, if the existing ductwork is flex duct in an attic or unconditioned space, Edmonds code requires it to be rigid or semi-rigid and insulated per the 2021 code. If you upgrade the ductwork during the fan replacement, that triggers a permit. Additionally, if the existing fan is undersized (e.g., 30 CFM in a 90 sq. ft. bathroom) and you upgrade to a properly sized fan (50–75 CFM), Edmonds reviewers may require a permit to verify the ductwork and electrical capacity support the new fan. When in doubt, call Edmonds Building Department (main number) and describe the existing and proposed setup; they will tell you if a permit is needed (usually a 15-minute call that saves you $200 in unnecessary permits or $1,000 in re-work).

Disclaimer: This guide is based on research conducted in May 2026 using publicly available sources. Always verify current bathroom remodel (full) permit requirements with the City of Edmonds Building Department before starting your project.

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