Item No.

8f_supp

Date of Meeting

April 14, 2026

Sound Insulation Places of Worship
Authorization

Sound Insulation Purpose/Scope
Purpose:
• As part of the Port of Seattle's (Port) long-term commitment to communities
surrounding the airport, the Port offers sound insulation for eligible properties within
the current Federal Aviation Administration (FAA) approved noise remedy boundary.
• Commission adopted Motion 2020-04 to accelerate and complete by the end of
2026. 

Scope Items:
•
•
•
•
•

Sound Transmission Class (STC) rated windows 
STC rated solid core doors 
Storm Doors 
Positive Air Ventilation 
Ancillary work necessary to reduce noise and/or meet code
2

Program Status Update
• Commission adopted Motion 2020-04 to accelerate and complete by
the end of 2026

• Work is on-going, with the following completed/in progress
since the adoption to be completed by year end
- Apartments: 10 properties with 327-residential units
- Condominiums: 1 property with 27- residential units
- Single-Family Homes: 37 residential home
- Places of Worship: 3 properties

• This represents all properties that have agreed to participate
3

Places of Worship Authorization
• Authorizes construction of 1
eligible place of worship
property
- Property previously declined
to participate in the program
in 2023

• Request $2.96M
authorization

4

Places of Worship Milestones
• Complete Design: Q4 - 2026
• Construction Advertisement: Q1 - 2027
• Commence Construction: Q3 2027

5

Sound Insulation Places of Worship Update
Places of Worship Program
• 3 properties in active construction
- Substantial completion Q4 2026

• 1 additional property ready for design (pending authorization)
- Major works advertisement Q1 2027

6

Questions?

7