Seattle Electric Company Georgetown Steam Plant
Added to the National Register in 1978, and a National Historic Landmark.
The record
| Property type | Building |
| Address | Off WA 99 at King County Airport, Seattle, WA |
| County | King County |
| Listed | Aug 1, 1978 |
| Listed for | Engineering |
| Level of significance | National |
| Also known as | Georgetown Steam Plant |
| Reference number | 78002755 |
| Designations | National Historic Landmark, Historic Mechanical Engineering Landmark |
The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗
Visiting
| Address | Off WA 99 at King County Airport, Seattle, WA |
| Coordinates | 47.5428° N, 122.3160° W · Directions ↗ |
| Also in Seattle | 229 listed places in Seattle → · walking tours → |
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Map
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Reference
Questions people ask
When was Seattle Electric Company Georgetown Steam Plant listed on the National Register?
Aug 1, 1978. It is also a National Historic Landmark, the higher of the two designations.
Source: National Park Service
Where is Seattle Electric Company Georgetown Steam Plant?
Off WA 99 at King County Airport, Seattle, King County, Washington.
Source: National Park Service
Where is the nomination form for Seattle Electric Company Georgetown Steam Plant?
The National Archives holds the nomination form, the document that made the case for listing.
Source: National Archives
Is there a wildfire near Seattle Electric Company Georgetown Steam Plant right now?
2 active incidents within 50 miles as of 2026-10-17, nearest Three Queens, 50 miles away.
Source: Map
Sources
Name, location, type and dates come from the National Register office's spreadsheet of listed properties, because the Park Service's spatial data does not carry this listing. The map point comes from Wikidata. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 78002755. Nothing here is transcribed by hand. The nomination form and photographs ↗ at NPGallery are the original nomination as filed with the National Park Service, and the form is often the best description of the place.