Preview 436,579 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 6684582-CN

8138 31ST AVE SW

Modified project description due to revision 6684582-CN-005 per O/S:1) Convert garage to 2 stories AADU; 2) Increase floor area for DADU; 3) Corrected survey per plans.

Permit

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

Location

City
SEATTLE
State
WA
ZIP
98126

Dates

Applied
2018-11-01
Issued
2019-05-01
Expires
2023-11-01
Completed
2023-06-21
Time to issue
181 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
3
Days out for corrections
70
Permit class (Seattle detail)
Single Family/Duplex

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

Other permits issued in Seattle, May 2019