Preview 316,582 permits — every permit Chicago, Austin and Seattle issued in the last ten years. The full load is in progress, so this is how far it has got. Sourced from city open-data portals. Data as of 2026-09-20.

Seattle · permit 6887670-CN

8449 18TH AVE SW

Construct new (West) DADU per plan. (Establish use as single family residence with (1) AADU and (1) DADU and Construct one and two family dwellings per plan / Review and process for two CN records under 6886002-CN)

Permit

Permit type
Building
Class
Residential
Trade
General/Building
Nature of work
New
Work
New
Status
Completed

Location

City
SEATTLE
State
WA
ZIP
98106

Dates

Applied
2022-03-11
Issued
2023-02-02
Expires
2024-08-02
Completed
2023-09-18
Time to issue
328 days

Value and contractor

Declared value
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Total fee
N/A. Total fee is a premium field which requires a paid plan. However, this permit has no fee on record.

Seattle details

Housing category
Middle Housing
Review cycles
0
Days out for corrections
0
Permit class (Seattle detail)
Single Family/Duplex

Data as of 2026-09-20. View the city's record

Other permits issued in Seattle, February 2023