Seattle Building Permit Timelines & Delays (2024 Data)
Seattle reported one of the largest permit volumes in Washington's 2024 performance report — 187 land-use decisions. Notably, Seattle did not use the state's standard permit categories and reported on its own land-use types instead.
Seattle permitting, the figures
The key published figures for this jurisdiction — each cited to its official source.
What the data shows
Seattle “did not follow the process” and reported on its own land-use categories rather than the state's five permit types, so its figures aren't directly comparable to the statutory 65/100/170-day periods (Table 139, p. 133).
The report states plainly that all of Seattle's reported processing durations would exceed the statute (p. 133).
The highest-volume category, Short Plat (126 permits), averaged 258 days; discretionary land-use reviews ran far longer (667–1,248 days) (Table 139, p. 133).
Under RCW 36.70B as amended by SB 5290, statutory review periods are 65 days (no public notice), 100 days (public notice), and 170 days (notice and hearing); previously a uniform 120 days applied (Table 1, p. 6).
Most delay accumulates before technical review
The data points to the same lever everywhere: most delay accumulates before technical review, in completeness and resubmittal cycles. Permittable's Permit Review Diagnostic checks your plans against applicable codes and common reviewer issues before you submit — so your package is more likely to clear on the first pass.
Seattle permitting: FAQ
How long does a building permit take in Seattle?
In Washington's 2024 Commerce report, Seattle's reported land-use review averages ranged from about 137 days (Special Exception) to over 1,200 days (SEPA-II). Its largest category, Short Plat, averaged 258 days across 126 permits. The report notes all of Seattle's durations would exceed the statutory period (Table 139, p. 133).
Why are Seattle's numbers reported differently?
Seattle did not follow the state's standard reporting categories and instead listed its own land-use permit types, so its data is a list of average days by Seattle category rather than a comparison to the 65/100/170-day statutory periods (Table 139, p. 133).
What slows Seattle permits down?
The report doesn't break down causes per city, but statewide it attributes most delay to intake/completeness friction and resubmittal cycles before technical review begins (Findings, p. 11). Discretionary reviews like Design Review and SEPA appeals carry the longest Seattle averages (Table 139, p. 133).
Is this 2024 data current?
These are 2024 baseline figures. The report notes the new statutory review periods took effect January 1, 2025, so 2024 data predates them and is, in Commerce's words, “a test of the reporting process itself, rather than conclusive permitting information” (pp. 4, 10).
Sources
All figures on this page are drawn from Annual Permitting Performance Report — 2024 — Washington State Department of Commerce, Growth Management Services. Local Project Review performance reporting under RCW 36.70B, pursuant to SB 5290 (Ch. 338, Laws of 2023). www.commerce.wa.gov/growth-management/gma-topics/local-project-review/. Specific tables, reports, and pages are cited inline with each figure above.
These are 2024 baseline figures. The report notes the new statutory review periods took effect January 1, 2025, so 2024 data predates them and is, in Commerce's words, “a test of the reporting process itself, rather than conclusive permitting information” (pp. 4, 10).