Preview 555,290 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 2026-09-21.

Seattle · permit 6857790-CN

11538 16th AVE NE

Construct addition to convert single-family dwelling to two-family dwelling (Construct attached accessory dwelling unit (AADU) & detached accessory dwelling unit (DADU) and construct addition to convert single-family dwelling to two-family dwelling & (1) new single-family dwelling per plan. Review & process for (2) records under 6857790-CN).

Permit

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

Dates

Applied
2022-01-20
Issued
2022-08-15
Expires
2025-08-15
Time to issue
207 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
34
Permit class (Seattle detail)
Single Family/Duplex

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

Other permits issued in Seattle, August 2022