Trade report · King County, Washington

New Construction Permits in King County (Seattle)

New Construction building permits issued by the City of Seattle, counted from the official record — monthly totals and the most recent new construction permits.

Source: City of Seattle open data — building permits. Source last updated: October 18, 2026 · Our last pull: October 18, 2026 · Figures are as reported by the City of Seattle.

Coverage: this report covers building permits issued by the City of Seattle, the largest jurisdiction in King County. Other King County cities publish their permits separately and are not in this feed, so totals here are Seattle totals — labeled as such, never blended. County-wide coverage is not implied.

1,341
New Construction permits issued, last 12 months
106
Issued in September 2026
61
Issued in October 2026 (to Oct 16)
21.1%
Share of all Seattle permits
Citable figure: Seattle issued 106 new construction permits in September 2026.
PermitsByCounty data, King County (Seattle), September 2026 · Source: City of Seattle

Questions, answered from the data

How many new construction permits were issued in Seattle in September 2026?

106 new construction permits were issued in Seattle in September 2026, as reported by the City of Seattle.

New Construction permits by month

MonthPermits issued
October 2026 (to date)61
September 2026106
August 2026117
July 2026121
June 2026117
May 2026107
April 2026150
March 2026161
February 202677
January 2026103
December 2025109
November 202572
October 2025 (from Oct 17)40

Most recent new construction permits

PermitTradeIssued
7503 8Th Ave Nw #7141004-CN
Construct new West one-family dwelling (DADU 2) per plan. (Establish use as housing for three detached dwe…		New Construction2026-10-16
7505 8Th Ave Nw #7141003-CN
Construct new middle one-family dwelling (DADU 1) per plan. (Establish use as housing for three detached d…		New Construction2026-10-16
7507 8Th Ave Nw #7134721-CN
Construct new East one-family dwelling (SFR) per plan. (Establish use as housing for three detached dwelli…		New Construction2026-10-16
4702 44Th Ave Ne #7147831-CN
Establish use as housing for two attached dwelling units per land use code. Construct two-family dwelling …		New Construction2026-10-15
7728 Meridian Ave N #7145243-CN
Construct east one-family dwelling (Establish use as housing for (2) attached dwelling units & (2) deta…		New Construction2026-10-15
7728 Meridian Ave N #7145242-CN
Construct middle two-family dwelling (Establish use as housing for (2) attached dwelling units & (2) de…		New Construction2026-10-15
7728 Meridian Ave N #7108914-CN
Construct west one-family dwelling (Establish use as housing for (2) attached dwelling units & (2) deta…		New Construction2026-10-15
6740 M L King Jr Way S #6959898-CN
Establish use as apartments and retail. Construct new mixed use apartment building occupy per plan. Mechan…		New Construction2026-10-15

All King County trades: full county report.