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PermitBase

Electrical permit in SeaTac, Washington

Permit for electrical work in SeaTac under the National Electrical Code as adopted at SMC 13.180.010, with jurisdiction shared with the Port of Seattle on airport property.

Verified 2026-09-16 · Source

When you need this permit

  • SMC 13.180.010(A): “The most current edition of the National Electrical Code (NFPA 70) approved by the Washington State Building Code Council, including Annexes A, B, and C, is hereby adopted by reference, as now or hereafter amended.” No edition year is printed.
  • SeaTac also adopts the Washington Cities Electrical Code at SMC 13.180.030 — “as now in effect and as may subsequently be amended, updated, or issued as new editions” — which no other city in this Washington set has named so far.
  • SMC 13.180.020 adopts Chapter 19.28 RCW for electricians and electrical installations, with a local substitution: “Department” means the City Department of Community and Economic Development and “Director” its Director.
  • ON PORT-OWNED AIRPORT PROPERTY THE CITY DOES NOT MERELY DEFER, IT GIVES THE JURISDICTION UP. SMC 13.180.010(B), under an interlocal agreement authorised by Resolution No. 00-022 and Port Resolution No. 3445 effective January 1, 2000, says the City “recognizes concurrent authority of the Port … and relinquishes any and all jurisdiction, including but not limited to that set forth in RCW 19.28.070, over development projects on Port-owned property within the City which are for airport uses”. Compare the building-code carve-out at SMC 13.100.010(C), where the verb is “defers to” rather than “relinquishes”. BOTH ARE RECORDED AS PUBLISHED AND THE DIFFERENCE IS NOT RESOLVED HERE.
  • THE TWO CARVE-OUTS ALSO TAKE THEIR DEFINITION OF “AIRPORT USES” FROM DIFFERENT DOCUMENTS: the electrical one cites “the September 4, 1997, interlocal agreement”, while the building-code one at SMC 13.100.010(C) cites the February 17, 2018 agreement. Neither agreement was read for this entry, so the scope of either carve-out is not asserted.
  • IF THE PORT'S AUTHORITY IS NOT RECOGNISED, IT DOES NOT REVERT TO THE CITY. SMC 13.180.010(B): where the State or the Director of Labor and Industries “does not grant power to, or acknowledge power of, the Port of Seattle” to enforce Chapter 19.28 RCW or inspect under it, “the City defers to the inspection authority of the Director of Labor and Industries” for those Port projects.
  • An electrical permit expires one year from issuance and may be extended once by a maximum of six months under SMC 13.100.060(K)(2).
  • THE APPLICATION HAS ITS OWN CLOCK, SEPARATE FROM THE PERMIT'S. SMC 13.100.060(H): an application for which no permit issues within eighteen months “shall expire by limitation”; separately it expires for inactivity if the applicant “fails to respond to the Department's written request for revisions, corrections, or additional information within ninety (90) days of the date of request”. The 90-day response period can be extended on an approved schedule, but the code is explicit that doing so “shall not extend the time limitation of the application” — the two clocks do not merge. Tolling is available for a cumulative maximum of 180 days: 90 days where a land use approval must come first, or 180 where issuance waits on a related construction permit, or on both. A separate one-time 30-day extension exists only “for the purpose of paying fees, submitting required paperwork, and posting financial sureties”.
  • SMC 13.100.100: appeals from the Building Official go to the Hearing Examiner, and “All references in the technical codes to the Board of Appeals shall be deemed to refer to the Hearing Examiner system of Chapter 1.20 SMC.” The section further limits the Examiner's authority over code interpretation; Chapter 1.20 SMC was not opened for this entry, so the procedure and any deadline are not asserted.

Required documents

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Fee schedule

Permit and plan review fee
SMC 13.100.070(A): “A permit or permit revision shall not be issued until all fees owed to the City of SeaTac have been paid. Show full citationSMC 13.100.070(A): “A permit or permit revision shall not be issued until all fees owed to the City of SeaTac have been paid. The permit and plan review fees, together with other fees, shall be as set forth in the most recently adopted City of SeaTac Fee Schedule.” NO DOLLAR AMOUNT APPEARS IN THE CODE, and the absence is bounded: The absence is bounded to SMC 13.100.060 and 13.100.070; the Fee Schedule itself is a separate document that was not opened. WHAT THE CODE DOES PUBLISH IS THE VALUATION METHOD, which is the input the fee is computed from — 13.100.070(B): “Project valuation shall be calculated based on the then-current August Building Valuation Data Square Foot Construction Costs Table published by the International Code Council or the actual value of the work for work not included in the published table”, and “The project valuation shall be set by the Building Official.” So an applicant can reconstruct the basis of the charge without being able to read the rate.
Set by City of SeaTac Fee Schedule
Investigation fee (work started without a permit)
SMC 13.100.070(C), work commencing before permit issuance: the investigation fee “shall be an amount equal to the permit fee with a minimum fee of one (1) hour at the standard hourly rate in the most… Show full citationSMC 13.100.070(C), work commencing before permit issuance: the investigation fee “shall be an amount equal to the permit fee with a minimum fee of one (1) hour at the standard hourly rate in the most recent City of SeaTac Fee Schedule”, and it “shall be in addition to the required plan review and permit fees” — so starting early roughly doubles the permit cost. It reaches buildings, electrical, gas, fuel tank, mechanical, plumbing and fire suppression work, work in the right-of-way, and land clearing including grubbing. The hourly rate is not published in the code.
Equal to the permit fee; 1 hour minimum
Refund of a paid permit fee
SMC 13.100.070(D) publishes the refund rule, which is unusual — most codes in this Washington set do not. Show full citationSMC 13.100.070(D) publishes the refund rule, which is unusual — most codes in this Washington set do not. A full refund where the fee “was erroneously paid or collected”; “A partial refund of eighty percent (80%) if a request for refund has been received within one hundred eighty (180) days of the expiration of an application or the issuance of a permit, and for which no plan review has started or inspections have been conducted.” Permits issued on incorrect, inaccurate or incomplete information, or in violation of any ordinance, are not eligible for a refund at all.
80% within 180 days if no review started

Review timeline

Plan review
Not published — contact the department

How long did your Electrical permit permit actually take in SeaTac?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

    Tips

    • ESTABLISH YOUR ELECTRICAL INSPECTION AUTHORITY FIRST IF THE SITE IS ON PORT LAND. Under SMC 13.180.010(B) the City has relinquished jurisdiction over airport uses on Port-owned property, and the stated fallback is the Director of Labor and Industries — not SeaTac. Filing with the wrong authority costs time no extension recovers.
    • SMC 13.180.040 covers amusement rides and 13.180.050 enforcement; neither was opened for this entry, so nothing here rests on them.

    Frequently asked questions

    SeaTac requires an electrical permit for: SMC 13.180.010(A): “The most current edition of the National Electrical Code (NFPA 70) approved by the Washington State Building Code Council, including Annexes A, B, and C, is hereby adopted by reference, as now or hereafter amended.” No edition year is printed.; SeaTac also adopts the Washington Cities Electrical Code at SMC 13.180.030 — “as now in effect and as may subsequently be amended, updated, or issued as new editions” — which no other city in this Washington set has named so far.; SMC 13.180.020 adopts Chapter 19.28 RCW for electricians and electrical installations, with a local substitution: “Department” means the City Department of Community and Economic Development and “Director” its Director.; ON PORT-OWNED AIRPORT PROPERTY THE CITY DOES NOT MERELY DEFER, IT GIVES THE JURISDICTION UP. SMC 13.180.010(B), under an interlocal agreement authorised by Resolution No. 00-022 and Port Resolution No. 3445 effective January 1, 2000, says the City “recognizes concurrent authority of the Port … and relinquishes any and all jurisdiction, including but not limited to that set forth in RCW 19.28.070, over development projects on Port-owned property within the City which are for airport uses”. Compare the building-code carve-out at SMC 13.100.010(C), where the verb is “defers to” rather than “relinquishes”. BOTH ARE RECORDED AS PUBLISHED AND THE DIFFERENCE IS NOT RESOLVED HERE.; THE TWO CARVE-OUTS ALSO TAKE THEIR DEFINITION OF “AIRPORT USES” FROM DIFFERENT DOCUMENTS: the electrical one cites “the September 4, 1997, interlocal agreement”, while the building-code one at SMC 13.100.010(C) cites the February 17, 2018 agreement. Neither agreement was read for this entry, so the scope of either carve-out is not asserted.; IF THE PORT'S AUTHORITY IS NOT RECOGNISED, IT DOES NOT REVERT TO THE CITY. SMC 13.180.010(B): where the State or the Director of Labor and Industries “does not grant power to, or acknowledge power of, the Port of Seattle” to enforce Chapter 19.28 RCW or inspect under it, “the City defers to the inspection authority of the Director of Labor and Industries” for those Port projects.; An electrical permit expires one year from issuance and may be extended once by a maximum of six months under SMC 13.100.060(K)(2).; THE APPLICATION HAS ITS OWN CLOCK, SEPARATE FROM THE PERMIT'S. SMC 13.100.060(H): an application for which no permit issues within eighteen months “shall expire by limitation”; separately it expires for inactivity if the applicant “fails to respond to the Department's written request for revisions, corrections, or additional information within ninety (90) days of the date of request”. The 90-day response period can be extended on an approved schedule, but the code is explicit that doing so “shall not extend the time limitation of the application” — the two clocks do not merge. Tolling is available for a cumulative maximum of 180 days: 90 days where a land use approval must come first, or 180 where issuance waits on a related construction permit, or on both. A separate one-time 30-day extension exists only “for the purpose of paying fees, submitting required paperwork, and posting financial sureties”.; SMC 13.100.100: appeals from the Building Official go to the Hearing Examiner, and “All references in the technical codes to the Board of Appeals shall be deemed to refer to the Hearing Examiner system of Chapter 1.20 SMC.” The section further limits the Examiner's authority over code interpretation; Chapter 1.20 SMC was not opened for this entry, so the procedure and any deadline are not asserted.. If your project isn't listed, confirm with City of SeaTac at (206) 973-4800 before starting work.

    In SeaTac, the published Permit and plan review fee is: Set by City of SeaTac Fee Schedule. Additional published fees: Investigation fee (work started without a permit) — Equal to the permit fee; 1 hour minimum; Refund of a paid permit fee — 80% within 180 days if no review started. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

    SeaTac does not publish a plan-review timeline for this permit. Contact City of SeaTac at (206) 973-4800 for current turnaround.

    You'll need: Construction permit application; Applicant's estimated project value; Permit and approved plans kept on site. See the required-documents checklist on this page for details on each.

    Apply through City of SeaTac at 4800 S 188th St, SeaTac, WA 98188. Phone: (206) 973-4800. Official information: https://www.seatacwa.gov/.

    SeaTac, Washington has adopted: SMC 13.110.020, opening: “The most current edition of the International Building Code, including Appendix E, as amended by the Washington State Building Code Council and published in Chapter 51-50 WAC is hereby adopted by reference as now or hereafter amended.” Subsection A adds: “Appendixes E and H are hereby adopted.”; IRC — “The most current edition of the International Residential Code” as amended by the Washington State Building Code Council and published in Chapter 51-51 WAC, with Appendices F, Q and U.; IEBC — “The most current edition”, Chapter 51-50 WAC.; IWUIC — “The most current edition”, Chapter 51-55 WAC.; IMC — SMC 13.160.010: “The most current edition of the International Mechanical Code as amended by the Washington State Building Code Council and published in Chapter 51-52 WAC is hereby adopted by reference, as now or hereafter amended.”; UPC — SMC 13.170.010: “The most current edition of the Uniform Plumbing Code”, Chapter 51-56 WAC, with the International Plumbing Code available as an applicant-elected alternate under subsection (A).; NEC — SMC 13.180.010(A): “The most current edition of the National Electrical Code (NFPA 70) approved by the Washington State Building Code Council, including Annexes A, B, and C, is hereby adopted by reference, as now or hereafter amended.”; Washington Cities Electrical Code — SMC 13.180.030, “as now in effect and as may subsequently be amended, updated, or issued as new editions”.; Chapter 19.28 RCW — SMC 13.180.020, for electricians and electrical installations, with “Department” and “Director” read as the City Department of Community and Economic Development and its Director.; NOT OPENED FOR THIS ENTRY and therefore not listed above: SMC 13.150 Fire Code, 13.200 Off-Site and On-Site Improvements, 13.210 Property Maintenance, 13.220 Energy, 13.250 Recycling Space Requirements and 13.270 Building Addresses. SMC 13.230 is shown in the Title 13 contents as Repealed.. Local amendments apply — see the SeaTac overview page for the full list.

    Not the City, for airport uses on Port-owned property. SMC 13.180.010(B) records an interlocal agreement effective January 1, 2000 under which SeaTac “relinquishes any and all jurisdiction, including but not limited to that set forth in RCW 19.28.070” over those projects. If the State or L&I does not acknowledge the Port's power to enforce Chapter 19.28 RCW, the City defers to the Director of Labor and Industries instead. “Airport uses” is defined in a September 4, 1997 interlocal agreement that is not reproduced in the code.

    Sources & verification

    Verified against official sources. Last reviewed 2026-09-16.

    Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the SeaTac building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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