PERMIT #7120118-CN
510 N 143rd St, Seattle, WA
newSimion ADU Allow housing for new detached housing unit, per land use code. Existing detached dwelling to remain. Construct new one family dwelling at 510 N 143rd St, Seattle, WA in Broadview, Seattle. Permit 7120118-CN is new, valued at $258,470. Work is being performed by the property owner/lessee.
Permit Timeline & Status
Construction Permit Timeline
Applied
April 20, 2026
In Review
4 cycles
Reviews Done
October 8, 2026
Issued
—
Completed
—
Expires
—
171
Plan Review Days — Total
62
Plan Review Days — City Control
109
Days in Applicant Control
4
Review Cycles
In City review — awaiting the next action.
Plan-review data from Seattle DCI. “City control” is total plan-review days minus the days the applicant held the permit for corrections.
Explore This Record
510 N 143RD ST, SEATTLE, WA Property
Broadview Neighborhood
Project Overview
Project Details
Value
$258,470
Type
Residential Construction
Issued
N/A
Location
Broadview
Contractor Information
Contractor
Owner/Lessee
Location & Map
Project Description
Simion ADU Allow housing for new detached housing unit, per land use code. Existing detached dwelling to remain. Construct new one family dwelling, per plan.
Additional Details
Permit Intelligence
Work performed by
Owner/Lessee
Housing category
Single-Family Add/Alt
Review level
Full +
Primary use
Single Family/Duplex
Parcel
DV1109178
Review cycles
4
Plan review days
171
Days in corrections
109
Units added
1
Units removed
0