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 6947041-CN

8438 12TH AVE SW

Construct substantial alterations and additions to convert west one-family dwelling to two-family dwelling per plan. [Allow attached and detached accessory dwelling units to existing single-family use per land use code. Construct new one-family dwelling and Construct alterations and additions to convert existing one-family dwelling to two-family dwelling. Review and processing for (2) construction records under 6947041-CN.]

Permit

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

Location

City
SEATTLE
State
WA
ZIP
98106

Dates

Applied
2023-07-28
Issued
2024-12-03
Expires
2027-12-03
Time to issue
494 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
5
Days out for corrections
206
Permit class (Seattle detail)
Single Family/Duplex

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

Other permits issued in Seattle, December 2024