How much has the Port spent on sound insulation?
As the icon indicates, this is a beta project, one of a series of reports on community impacts. It is subject to frequent updates, both improvements and repairs.
Note: If you are trying to look up one particular address, for example to get information on your Port Package, go here.
These reports and charts tracks 23,825 costs paid for by the Port of Seattle on roughly 8,449 homes, apartments and houses of worship between 1987 and 2024. This reflects that fact that a Port Package might consist of one to seven separately contracted operations including doors, windows, supplemental insulation in walls and ceilings, and HVAC.
You can see who got Port Packages, when they got them, how they are funded and how much each project costs. There are important caveats:
- The data needs more scrubbing. It represents every structure that can be properly matched against a current Parcel ID Number (PIN) — about ninety percent of those that have received federal reimbursement. When the program began, many of these homes were unincorporated King County. Matching inconsistently formatted addresses to current parcels and avigation easements is not an exact science.
- The data needs more scrubbing. It can be challenging to look up individual addresses which are inconsistent (AV, vs. AVE).
- The data needs more scrubbing to properly represent average costs. Some months and years have skewed costs because the only projects were large multi-family projects.
- The data summarizes costs over several decades. and these costs are not inflation-adjusted. A dollar in 2000 is worth about half what it now is in 2025.
How to use
Select your desired report type, date range and filters, then click “Go”. Each report, except for the PIN Detail, also includes a Graph/Chart option.
The Parcel ID Number (PIN) Detail report provides address-specific data and offers two additional options: check “Show Detail” to see 1individual cost entries for each property, or leave it unchecked to get see only the summary. You can also sort/subtotal those costs by City, Fund, CIP Number, or Year/Month.
- Fund: refers to the funding source, typically an FAA Airport Improvement Program grant or a Passenger Facilities Charge. Those make up at least 80% of every sound insulation system.
- CIP and Project: refer to the Port’s internal cost accounting systems. More in a future update
1To avoid overloading the system, the PIN Detail Report Type is date limited.