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 6959762-CN

3450 13th AVE W

Construct addition to existing one family dwelling to convert into a two family dwelling per plan (Allow new attached accessory dwelling unit and detached accessory dwelling unit per land use code. Construct one and two family dwelling unit per plan review and process for two records under 6959762-CN)

Permit

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

Dates

Applied
2023-05-11
Issued
2023-06-20
Expires
2024-12-20
Completed
2024-04-26
Time to issue
40 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
2
Days out for corrections
1
Permit class (Seattle detail)
Single Family/Duplex

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

Other permits issued in Seattle, June 2023