How much housing is Seattle building?
Net new homes: units added by building permits as they reach completion (final inspection), minus units demolished. How units are counted
2025-01-01 → 2025-10-05
6,196 added − 528 demolished
8,906 in the 12 months before →3,707 added − 415 demolished
5,436 by the same date in 2025 →Provisional: completions are sometimes recorded late.
Units completed per year, by housing type
Units added by housing type above the line, units demolished below it, and the net as a line. Look for which kinds of housing drive the totals and how the mix shifts after policy changes. Click a bar to see its permits.
969 projects
1% of these units have a housing type inferred from the permit description because the City didn't record one; 0% couldn't be classified. How types are assigned
Trailing 12-month total
Net units completed in the 12 months up to each month. Smooths out seasonal swings, so it's the fairest way to tell whether the city is speeding up or slowing down.
Largest completions
The biggest permits completed between Jan 1, 2025 and Oct 5, 2025, and their share of the 5,877 units added in that period.
| Address | Type | Completed | Units | Share |
|---|---|---|---|---|
225 BROADWAY Phased project: Construct multi-family building with below-grade parking occupy per plan. Mechanical included. Street View | Large multifamily | Apr 30, 2025 | 345 | 5.9% |
2208 4TH AVE Phased project: Construct a mixed-use high rise with residential over lower floor commercial and below grade parking occupy per plan. Mechanical is included Street View | Large multifamily | Jul 29, 2025 | 323 | 5.5% |
2245 NW 56TH ST Phased project: Construction of a residential/retail building with below grade parking and occupy per plan Street View | Large multifamily | Feb 6, 2025 | 238 | 4.0% |
2315 4TH AVE Phased project: Construction of a residential and retail building and occupy per plan Street View | Large multifamily | May 22, 2025 | 212 | 3.6% |
821 S WASHINGTON ST Phased project: Construction of a residential building with below grade parking and occupy per plan. Mechanical is included. Street View | Large multifamily | May 21, 2025 | 200 | 3.4% |
8511 15TH AVE NW Phased project: Construction of a residential/retail building with below grade parking and occupy per plan. Street View | Large multifamily | Aug 18, 2025 | 194 | 3.3% |
2222 15TH AVE W Phased Project: Construct multi-family residential building occupy per plan. Street View | Large multifamily | Aug 8, 2025 | 168 | 2.9% |
100 ROY ST Phased project: Construction of a residential/retail building with below grade parking and occupy per plan. Street View | Large multifamily | Apr 1, 2025 | 167 | 2.8% |
1010 12TH AVE S Construct multi-family building occupy per plan (Construct multifamily building and concrete landing review and process for 2 CN's under 6603306-CN) Street View | Large multifamily | Mar 17, 2025 | 160 | 2.7% |
3803 S WARSAW ST Establish use as mixed-use and construct apartment and commercial building occupy per plan. Street View | Mid-size multifamily | Jun 11, 2025 | 131 | 2.2% |