Research by DoINeedAPermit Research Team · Updated May 2026
The Short Answer
Yes. Edmonds requires a building permit for any deck attached to your house, regardless of size or height. The City of Edmonds Building Department enforces strict ledger-board flashing details and Puget Sound frost-depth requirements that differ materially from inland Washington counties.
Edmonds sits in FEMA Flood Zone AE and treats all attached decks as structural additions requiring full plan review and footing inspection. Unlike some Puget Sound jurisdictions, Edmonds enforces IRC R507.9 ledger-board flashing with unusual rigor — staff routinely flag incomplete detail, and the city's online permit tracker (MyDevelopment portal) flags footing depth against a strict 12-inch frost line for the immediate Edmonds basin, even though some Snohomish County pockets 3 miles east sit in Zone 5B with 30+ inch requirements. The permit fee is typically $200–$400 (1.5-2% of declared valuation), though it can spike if plan review requires revisions to ledger or uplift connection details. Edmonds also uniquely requires coordination with its critical-areas ordinance if your deck sits within 200 feet of a stream, wetland, or salmon bearing stream — a common issue in Edmonds neighborhoods along Beaver Creek, Willow Creek, and the Edmonds waterfront. This adds 2-3 weeks to review alone and may trigger additional critical-areas report costs ($500–$1,500).

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

Edmonds attached-deck permits — the key details

Edmonds requires a building permit for all attached decks. The City of Edmonds Building Department applies this rule without exception — even a small 10x12 deck attached to a single-family home on a quiet Wallingford cul-de-sac needs a permit. IRC R105.2 does exempt certain freestanding decks under 200 square feet and under 30 inches above grade, but Edmonds interprets 'attached' as any deck sharing a ledger board or rim joist with the house structure, which immediately disqualifies it from exemption. The city's permit threshold is: any attached deck, any deck 30 inches or higher, any deck 200 sq ft or larger. In practice, virtually all residential decks in Edmonds trigger the requirement. The permit application goes through MyDevelopment portal (Edmonds' online system) or by paper form at the Building Department counter at City Hall. Expect the city to request site plans with footing depth callouts, ledger-board flashing detail (referenced to IRC R507.9), stair dimensions, guardrail height, and beam-to-post connection notation. First-time applicants often underestimate the ledger-board detail requirement — Edmonds staff have flagged insufficient detail in 40-50% of initial submissions, causing a 1-2 week delay.

Edmonds' frost-line requirement is 12 inches minimum for the greater Edmonds basin (per local geotechnical data and the city's building code adoption of the current IRC with local amendments). However, the city's critical-areas ordinance adds a substantial layer of complexity that doesn't exist in nearby Lynnwood or Mountlake Terrace. If your deck sits within 200 feet of a mapped stream, wetland, or fish-bearing watercourse, Edmonds requires a critical-areas report prepared by a qualified professional (typically a biologist or wetland specialist, costing $500–$1,500) before the city will even issue the building permit. Edmonds has multiple sensitive streams — Willow Creek, Beaver Creek, Interurban Trail wetlands, and the Edmonds-to-Lynnwood Trail corridor — that run through residential neighborhoods, and a surprising number of homeowners discover mid-project that their backyard sits in a critical zone. The city's maps are available on the Edmonds GIS portal; check before you design. If your lot is flagged, add 3-4 weeks to your timeline and budget the specialist report upfront. The ledger-board flashing rule is equally strict: Edmonds enforces IRC R507.9 to the letter, requiring house rim-board flashing to be sealed with metal flashing, sealant, and membrane in a specific order, and tied to a through-wall membrane system. The city's published standard detail shows 1/8-inch minimum vertical gap between ledger and house rim, proper nail spacing (16 inches on-center, per code), and drainage plane continuity. Incomplete or hand-drawn ledger details are rejected routinely, so consider using a plan-design service ($200–$400) if you're not experienced with code-compliant drawings.

The permit fee in Edmonds is based on estimated project valuation and typically runs 1.5-2% of declared cost. A typical small deck (12x14, attached, no electrical) might be valued at $8,000–$12,000, yielding a permit fee of $200–$300. A larger deck (16x20, with stairs and a built-in bench) might run $15,000–$20,000 valuation and a $225–$400 permit. The fee is non-refundable once submitted, and additional reviews or corrections do not trigger additional permit fees — you simply receive multiple 'resubmit' notifications in MyDevelopment until the drawings pass. Plan-review timelines are typically 2-3 weeks from submission to first approval (or first correction notice). If corrections are needed, add another 1-2 weeks per cycle. Expedited review is available in some Washington jurisdictions, but Edmonds does not offer a true expedited-track option for decks; the standard 2-3 week timeline is the baseline. Once approved, you'll receive three separate inspection appointments: footing/post-hole pre-pour (before concrete is poured), framing inspection (after ledger, beams, and joists are installed but before decking), and final inspection (after all surfaces, stairs, and guardrails are complete). Each inspection must pass before the next phase begins. Most homeowners/contractors expect 3-5 weeks total from permit approval to final sign-off, assuming inspectors are responsive and no structural surprises emerge.

Edmonds sits in FEMA Flood Zone AE, which affects some neighborhoods differently depending on elevation and proximity to the waterfront. The city enforces both the International Building Code (2021 edition, as of late 2024) and the Washington State Energy Code. For decks in flood zones, the city may require elevated footings or notations about flood-elevation compliance, though most residential decks are low enough to avoid flood-elevation triggers. The city has also adopted provisions on resilience and stormwater management that may affect deck design if your lot has documented drainage issues or sheet-flow problems. The soil conditions in Edmonds — glacial till, volcanic soils, and some alluvial zones — can affect footing bearing capacity. A few contractors have reported that Edmonds building inspectors occasionally request soil-bearing-capacity verification (a $500–$800 soil engineer's report) for decks on steep or problematic slopes, though this is not routine. The 12-inch frost line is non-negotiable in the city's permitting zone, but if your lot abuts the boundary with Mountlake Terrace or Lynnwood (both in different frost-zone classifications), confirm your jurisdiction with the city's GIS parcel map before designing footings. Owner-builder work is allowed in Edmonds for owner-occupied residential projects, meaning you can obtain and manage the permit yourself rather than hiring a general contractor; however, you are responsible for all plan compliance, inspections, and liability insurance.

The typical next step is to gather your site plan (lot lines, house footprint, deck location, dimensions, and footing layout), sketch or obtain a ledger-board detail (or have a designer prepare one), and check the critical-areas map via Edmonds GIS. If your deck is within a critical area, pause and budget for a specialist report. If not, prepare your permit application packet (typically 2 sets of plans, a completed application form, and a valuation estimate) and upload it to MyDevelopment or hand-carry it to the Building Department. The city accepts digital uploads, which speeds processing. You'll receive an email confirmation and a project number within 24-48 hours, followed by a plan-review comment or an approval within 2-3 weeks. If comments arrive, address them (usually 5-10 days of revision time), resubmit via MyDevelopment, and wait another 1-2 weeks for re-review. Once approved, you can order materials and schedule the footing inspector. Do not pour footings or begin construction until you have written approval and have scheduled the pre-construction inspection — doing so voids the permit and triggers code-violation enforcement.

Three Edmonds deck (attached to house) scenarios

Scenario A
12x16 attached deck, rear yard, Wallingford neighborhood, no stairs initially, 18 inches above grade
You're building a modest deck on a quiet Wallingford cul-de-sac, attached to the back of a 1970s rambler. The deck is 12 feet wide by 16 feet deep (192 sq ft), attached via a ledger board to the existing rim joist, and will be 18 inches above grade at the deck surface (low enough to avoid safety-rail requirements in some jurisdictions, but not Edmonds). The site plan shows glacial-till soil, typical for west Edmonds, and no mapped streams within 200 feet — critical-areas report is not required, saving $500–$1,500. Your footing design calls for 12-inch holes dug to frost depth (exactly 12 inches, the local standard), 4x4 posts on concrete piers, and standard 2x8 joists 16 inches on-center. The ledger board will be bolted to the rim with 1/2-inch galvanized bolts, 16 inches on-center, with metal flashing and sealant per IRC R507.9. You do not plan stairs or electrical. Estimated valuation is $9,000 (materials and labor), so your permit fee will be approximately $200–$270 (1.5-2% of valuation). You apply online via MyDevelopment with site plan, framing plan, ledger detail, and footing schedule. The city issues a first-review comment on day 18: 'Provide through-wall flashing detail and drainage-plane callout; see IRC R507.9 Example.' You revise the ledger detail to show the flashing sandwich (house wrap, metal flashing, sealant bead, house rim), resubmit, and receive approval on day 32. You schedule a footing pre-pour inspection; the inspector arrives, checks hole depth (confirmed 12 inches to bottom), approves the concrete pour, and signs off. Concrete cures 7 days. You then frame the deck (posts, beams, rim, joists, blocking), schedule framing inspection, pass, and then install decking, stairs later if desired. The third inspection (final) happens after all surfaces and railings are complete. Total timeline: 6-8 weeks from application to final sign-off. Total permit cost: $250 (permit fee) + materials and labor. No electrical or plumbing complexity.
Permit required (attached deck) | 12-inch frost depth (Edmonds standard) | Ledger-flashing detail required (IRC R507.9) | No critical areas within 200 ft | Estimated valuation $9,000 | Permit fee $200–$270 | Total timeline 6-8 weeks | 3 inspections (footing, framing, final)
Scenario B
16x20 elevated deck with stairs, Willow Creek riparian buffer, Edmonds waterfront area, includes recessed lighting
Your lot is in the Edmonds waterfront/Willow Creek neighborhood (near 76th Ave W), and Willow Creek — a mapped salmon-bearing stream — runs through a wooded buffer 150 feet from your house. You want to build a 16x20 deck (320 sq ft), elevated 3 feet above grade, with a full set of stairs and 4-inch recessed LED downlights on the underside. This scenario triggers multiple Edmonds-unique requirements that your neighbor in Lynnwood or Bothell would not face. First, the 320 sq ft and 3-foot elevation alone require a permit in any jurisdiction, but the proximity to Willow Creek — within 200 feet of a fish-bearing watercourse — triggers Edmonds' critical-areas ordinance. You must hire a qualified professional (biologist or wetland specialist) to prepare a critical-areas report assessing impacts to the stream buffer, water quality, wildlife habitat, and riparian function. This report costs $800–$1,500 and adds 4-6 weeks to your overall timeline, because the city will not even issue the building permit until the critical-areas report is received, reviewed, and approved (or conditioned). The report will likely recommend riparian-friendly deck design: locating footings outside the buffer zone if possible, using permeable decking materials if any, and avoiding fill or grade change in the buffer. Once the critical-areas report is approved, your building permit can proceed. The ledger-board detail must be fully compliant (same as Scenario A), and footing depth is still 12 inches to frost, but the critical-areas conditions may impose setback or vegetation-preservation limits. The electrical work (recessed lighting) requires a separate electrical permit and inspection under NEC 690.12 (outdoor lighting); this adds $100–$150 in fees and another inspection appointment. Your estimated valuation might be $18,000–$22,000 (larger deck, elevated, stairs, lighting package), yielding a building permit fee of $270–$440. The electrical permit would be $100–$150. Total permit cost: $370–$590. Total timeline: 10-14 weeks (4-6 weeks critical-areas review, 2-3 weeks building-plan review, 1 week electrical plan review, then construction and 4 inspections: footing, electrical rough-in, framing, final). The inspections happen in sequence: footing pre-pour, electrical rough-in (wiring in place, boxes confirmed), framing (structure and stairs), and final (decking, railings, lights operational). This scenario showcases Edmonds' unique critical-areas overlay and the dual-permit complexity that does not occur in nearby jurisdictions without stream-buffer ordinances.
Permit required (attached, elevated, stairs) | Critical-areas report required ($800–$1,500, Edmonds-unique) | Willow Creek riparian buffer 150 ft away | Electrical permit required (recessed lighting) | 12-inch frost depth | Ledger-flashing detail required | Estimated valuation $18,000–$22,000 | Building permit fee $270–$440 | Electrical permit fee $100–$150 | Total timeline 10-14 weeks (includes critical-areas review) | 4 inspections (footing, electrical, framing, final)
Scenario C
10x12 attached deck, 24 inches above grade, ground-level patio option, Edmonds bluff area with 30+ inch frost depth uncertainty
Your house sits on a hillside lot in southwest Edmonds, near the Snohomish County boundary. The lot has a 15-degree slope, and you're considering either a standard elevated deck (10x12, 24 inches above finish grade at the entry door) or a ground-level patio at the base of the slope. If you choose the elevated deck, you need a permit — the 24-inch height disqualifies it from exemption, and Edmonds' 12-inch frost line applies. However, your property abuts the Edmonds-Mountlake Terrace boundary, and Mountlake Terrace sits in IECC Climate Zone 5B with a 30-inch frost requirement (different from Edmonds' 12-inch). Before you finalize footing depth, you must confirm your precise jurisdiction with Edmonds' GIS parcel map and the Building Department. If you are even 30 feet east, you could be in Mountlake Terrace, which would require 30-inch footings and a different permit process. Assuming you're confirmed in Edmonds, your 12-inch frost depth applies, and your estimated valuation for the small (120 sq ft) elevated deck would be $6,000–$8,000, yielding a permit fee of $150–$200. The critical-areas check shows no streams within 200 feet, so no specialist report is required. However, the slope introduces a complication: if your deck footings sit on fill or on disturbed soil, Edmonds may require a soil-engineer's letter confirming bearing capacity and settlement risk. This is not routine but has occurred in 10-15% of sloped-lot permits in Edmonds. If required, add $500–$800 for a soil report and 1-2 weeks of delay. Ledger-flashing detail is required as always. The alternative — a ground-level patio (say, 12x14 of gravel, pavers, or poured concrete at grade, not attached to the house) — would be exempt from permitting if it's a purely structural patio with no electrical and no attachment to the house structure. However, if you wanted to add a low rim board or edge-restraint system that attaches to the house foundation, it would trigger a permit. The elevated deck is the safer regulatory bet: permit required, footing depth 12 inches (verify jurisdiction), ledger detail mandatory, $150–$200 permit fee, 2-3 weeks review, 3 inspections. This scenario illustrates Edmonds' boundary-condition complexity and the slope-related soil-investigation requirement that differs from flat-lot scenarios.
Permit required (elevated deck, 24 inches above grade) | Confirm jurisdiction with Edmonds GIS (boundary with Mountlake Terrace 5B zone) | 12-inch frost depth (Edmonds) vs. 30-inch (Mountlake Terrace if applicable) | Slope-related soil-engineer letter may be required ($500–$800, Edmonds discretionary) | Ledger-flashing detail required | No critical areas | Estimated valuation $6,000–$8,000 | Permit fee $150–$200 | Total timeline 2-4 weeks (possibly 4-6 if soil report needed) | 3 inspections

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Edmonds' ledger-board flashing rule and why it's stricter than most Puget Sound cities

Edmonds enforces IRC R507.9 ledger-board flashing with unusual precision and has built a reputation among regional contractors for rejecting initial submissions 40-50% of the time on ledger-detail grounds alone. The rule is straightforward in code: metal flashing must be installed over the rim board and under the sheathing, sealed with caulk or sealant, and equipped with a through-wall membrane or house-wrap barrier to direct water away from the rim and foundation. However, Edmonds staff interpret 'over the rim board' and 'under the sheathing' with strict detail requirements that not all neighboring jurisdictions enforce. Specifically, Edmonds requires a hand-sketch or CAD detail showing the layering order: house wrap, metal flashing (typically Z-flashing or step flashing, 1/8-inch galvanized or aluminum), sealant bead, and continuity to a drainage plane or exterior insulation if present. The city also requires callouts for fastening (nail spacing, bolt spacing, and size) and a note stating the flashing is 'sealed to prevent water intrusion per IRC R507.9.' Anecdotally, some Edmonds inspectors have flagged 'insufficient detail' on submissions that showed only a basic flashing callout without the layering order, while inspectors in Lynnwood or Mountlake Terrace might have approved the same drawing.

The reason Edmonds is stringent on this detail is climate and history. The Puget Sound region experiences 50-60 inches of annual rainfall, much of it wind-driven and persistent. Improper ledger-board flashing is the leading cause of deck-rim rot and water intrusion into the house rim-board and band joist, which then leads to structural deterioration, mold, and costly repairs ($5,000–$15,000 to replace a compromised band joist). Edmonds' building inspectors have seen firsthand the consequences of poor flashing, and the city has adopted a policy of enforcing the code detail strictly at the permitting stage to prevent future damage. If you plan to design your own ledger detail, reference the IRC R507.9 diagram in the 2021 IRC (the code Edmonds has adopted) or, better yet, use a free online reference like the DeckMasters or AZEK (formerly Trex) ledger-flashing guides, which show Edmonds-compliant details. If you're not confident in hand-drawing a code-compliant detail, hire a deck designer or drafter ($150–$300 for a single detail sheet) to ensure the city accepts it on first submission and avoids a 1-2 week delay.

One additional Edmonds quirk: the city's online submission portal (MyDevelopment) allows you to resubmit revised drawings without losing your original submission date, so a resubmission on day 20 of review counts as a new cycle but does not reset your 'days in review' clock. This is favorable for applicants, but it also means that applicants sometimes submit lower-quality details hoping to get quick feedback rather than a 'no decision' on first review. Building Department staff have noted this behavior and sometimes request more detail upfront to avoid the back-and-forth. The lesson: submit your best detail on day one, even if it takes an extra week to prepare.

Critical-areas overlay in Edmonds and how it affects deck timelines and costs

Edmonds has mapped critical-areas zones that include streams, wetlands, fish-bearing watercourses, and associated riparian buffers, and the city enforces a 200-foot no-net-loss standard for any development (including decks) within or near these zones. The major streams in Edmonds are Willow Creek (central and western neighborhoods), Beaver Creek (northern and central areas), and various unnamed tributaries that feed into Puget Sound or the Edmonds-to-Lynnwood Trail wetlands system. If your deck sits within 200 feet of any of these, you must obtain a critical-areas report prepared by a qualified professional (typically a biologist, wetland specialist, or environmental consultant with a degree in environmental science or related field) before the city will issue the building permit. This report typically costs $800–$1,500 and takes 3-4 weeks to prepare (the consultant must visit the site, delineate the buffer, assess impacts, and write the report). The city then reviews the report (another 1-2 weeks) and issues a conditional approval or a rejection, depending on whether the proposed deck meets the 'no-net-loss' or 'avoidance and minimization' standards.

The timeline impact is substantial. A deck project in a non-critical area (like Scenario A, Wallingford) can go from application to permit approval in 2-3 weeks. A critical-area deck (like Scenario B, Willow Creek) can take 10-14 weeks, because you must allow 4-6 weeks for critical-areas report preparation and review before the building-plan review even begins. Many Edmonds homeowners are surprised by this when they discover mid-project that their 'quiet backyard' sits within 200 feet of a mapped stream and suddenly their timeline extends by two months. The city's critical-areas GIS map is public and searchable on the Edmonds Planning & Community Development website; check it before you finalize your deck design. If your lot is flagged, contact an environmental consultant immediately and budget accordingly.

Once the critical-areas report is approved, the city may impose conditions on the deck design, such as: no fill in the buffer; limited footing disturbance; setback requirements; or native-vegetation restoration on the disturbed areas. These conditions typically do not prevent the deck from being built, but they can affect footing locations, add restoration costs ($500–$2,000), and extend the construction timeline slightly. One Edmonds homeowner reported that the critical-areas condition required removal of invasive ivy and replanting of native shrubs in the buffer area, adding 2-3 weeks and $1,200 to the project. However, these are neighborhood-specific outcomes; your mileage will vary based on the specific stream, buffer health, and site conditions. The message: if you're in or near a critical area, involve a qualified consultant early, budget $800–$1,500 for the report, and add 4-6 weeks to your timeline.

City of Edmonds Building Department
250 5th Avenue N, Edmonds, WA 98020 (City Hall, 3rd Floor)
Phone: (425) 771-0220 ext. 5500 (Building Services) — confirm via city website | https://edmonds.municipal.codes/ (code library); MyDevelopment permit portal (search 'Edmonds MyDevelopment' on city site)
Monday–Friday, 8:00 AM–5:00 PM (verify holiday closures)

Common questions

Can I build a deck without a permit in Edmonds if it's small (under 200 sq ft)?

No, not if it's attached to your house. Edmonds treats all attached decks as requiring a permit, regardless of size or height. Freestanding decks under 200 sq ft and under 30 inches above grade may be exempt, but the moment you attach a ledger board to your house, you need a permit. The city's interpretation of 'attached' is strict: any structural connection to the house (ledger, rim, or post anchored to the foundation) triggers the requirement.

How deep do my deck footings need to be in Edmonds?

12 inches minimum, dug to frost depth. Edmonds sits in IECC Climate Zone 4C (west Edmonds) and 5B (east Edmonds near the county boundary), but the city's standard frost-line depth is 12 inches for the greater Edmonds basin. If your lot is very close to the Mountlake Terrace or Bothell boundary, verify jurisdiction with the city's GIS parcel map, because those jurisdictions may require 30 inches. The footing depth is verified during the footing pre-pour inspection — inspectors measure the hole depth before concrete is poured, so you cannot skip this step or pour concrete before inspection.

What happens if my deck sits near Willow Creek or another stream?

If your deck is within 200 feet of a mapped stream, wetland, or fish-bearing watercourse (Edmonds' critical-areas buffer), you must hire an environmental consultant to prepare a critical-areas report before Edmonds will issue the building permit. The report costs $800–$1,500, takes 3-4 weeks to prepare, and the city will review it for an additional 1-2 weeks. This can delay your permit by 4-6 weeks. Check the Edmonds GIS critical-areas map online before you finalize your design.

Do I need an electrical permit if I add lights or an outlet to my deck?

Yes. Any electrical work, including recessed lights, string-light outlets, or post-mounted fixtures, requires a separate electrical permit and inspection under the National Electrical Code (NEC). The electrical permit is typically $100–$150 and requires an electrician or a qualified owner-builder to submit a simple one-line diagram showing the circuit, breaker size, and fixture locations. Expect a rough-in inspection (before drywall or final surfaces) and a final inspection (after everything is operational).

How long does it take to get a deck permit approved in Edmonds?

Typically 2-3 weeks for first-submission review if there are no critical-areas or ledger-detail issues. If you receive comments on your ledger flashing or footing details, add 1-2 weeks for revisions and re-review. If your deck is in a critical area, add 4-6 weeks for the critical-areas report process before plan review even begins. Most homeowners should budget 6-10 weeks from application to final inspection sign-off.

What is the permit fee for a deck in Edmonds?

Edmonds charges 1.5-2% of estimated project valuation as the permit fee. A small deck (12x14, ~$8,000–$10,000 estimated value) costs $150–$250. A larger deck (16x20, ~$15,000–$20,000 value) costs $250–$400. You declare the valuation on your application; the city may adjust it upward if it seems low, but there's no upside charge if the city approves your estimate. Once the permit is issued, all subsequent reviews and corrections do not trigger additional fees.

Do I need to hire a contractor, or can I pull the permit and build it myself?

Edmonds allows owner-builders for owner-occupied residential projects. You can obtain and manage the permit yourself, order the inspections, and build the deck; you do not need to hire a licensed general contractor. However, you are responsible for code compliance, passing all inspections, and any liability or insurance. If your deck includes electrical work, you may need a licensed electrician to handle the electrical permit (depending on Washington State law and your comfort level); check with the city's Building Department.

What happens if my deck fails inspection? Can I fix it and re-inspect?

Yes. If an inspector identifies a defect (footing too shallow, ledger flashing incomplete, stair dimensions off, guardrail too low), you receive a written correction notice and can remedy the issue and request a re-inspection within 5-10 business days. Re-inspections are typically free (included in the original permit fee), and the process repeats until the work passes. Most decks pass all three inspections (footing, framing, final) on first attempt, but ledger-board detail issues occasionally require a corrective re-inspection.

Will an unpermitted deck affect my home sale or resale?

Yes, significantly. Washington State real estate law requires seller disclosure of all known defects and unpermitted work. Buyers' lenders (Fannie Mae, Freddie Mac, FHA, VA) flag unpermitted decks and may refuse financing until the deck is either removed or permitted retroactively. A retroactive permit is possible but costly and time-consuming ($300–$500 additional fees, plus structural inspection and possible remediation). Most buyers will walk away or demand a price reduction of $3,000–$10,000 to cover removal risk. Permitting your deck upfront is far cheaper and faster than dealing with a disclosed unpermitted structure during a sale.

Is an attached deck different from a patio or ground-level platform in Edmonds' eyes?

Yes. An attached deck (one with a ledger board or rim-joist connection to the house) always requires a permit in Edmonds. A ground-level patio, paver walkway, or free-standing platform that is not attached to the house and sits under 30 inches above grade and under 200 sq ft may be exempt from permitting. However, the line between 'attached' and 'detached' can be blurry — if you have a low rim board or edge ledger that attaches to the house foundation, even to prevent settlement or create a raised edge, it likely triggers a permit. Ask the city before you finalize design if you're unsure.

Nearby cities & related guides

Deck (Attached to House) Permits in Burien, WA Deck (Attached to House) Permits in Bothell, WA Deck (Attached to House) Permits in Bremerton, WA
Disclaimer: This guide is based on research conducted in May 2026 using publicly available sources. Always verify current deck (attached to house) permit requirements with the City of Edmonds Building Department before starting your project.

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