PERMIT #7097647-CN
3434 Beacon Ave S, Seattle, WA
activeAT&T MODIFICATION - WA6007 BEACON HILL RESERVOIR Construct alterations to minor telecommunications facility [AT&T] at roof for mixed-use building at 3434 Beacon Ave S, Seattle, WA in Beacon Hill, Seattle. Permit 7097647-CN is active, valued at $40,000. Work is being performed by MASTEC NETWORK SOLUTIONS INC.
Permit Timeline & Status
Construction Permit Timeline
Applied
September 10, 2025
In Review
2 cycles
Reviews Done
October 3, 2025
Ready to Issue
October 6, 2025
Issued
October 7, 2025
Completed
—
Expires
April 7, 2027
23
Plan Review Days — Total
19
Plan Review Days — City Control
4
Days in Applicant Control
2
Review Cycles
Permit issued — construction underway.
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
3434 BEACON AVE S, SEATTLE, WA Property
MASTEC NETWORK SOLUTIONS INC Contractor
Beacon Hill Neighborhood
Project Overview
Project Details
Value
$40,000
Type
Commercial Construction
Issued
October 7, 2025
Location
Beacon Hill
Contractor Information
Location & Map
Project Description
AT&T MODIFICATION - WA6007 BEACON HILL RESERVOIR Construct alterations to minor telecommunications facility [AT&T] at roof for mixed-use building, per plan.
Additional Details
Permit Intelligence
Work performed by
Licensed Contractor
Contractor license
MASTENS876KN
Housing category
Commercial Add/Alt
Review level
Full +
Primary use
Commercial
Parcel
DV0007198
Review cycles
2
Plan review days
23
Days in corrections
4
Expires
April 7, 2027
Existing units
0
Units added
0
Units removed
0
Sleeping rooms
0