McLellan-Sweat Mansion
Added to the National Register in 1970, and a National Historic Landmark.
The record
| Property type | Building |
| Address | 111 High St., Portland, ME |
| County | Cumberland County |
| Listed | Mar 5, 1970 |
| Listed for | Art, Architecture |
| Level of significance | National |
| Also known as | L.D.M. Sweat Memorial Art Museum; Sweat Mansion |
| Reference number | 70000073 |
| Style | Federal architecture |
The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗
Visiting
| Address | 111 High St., Portland, ME |
| Coordinates | 43.6533° N, 70.2625° W · Directions ↗ |
| Also in Portland | 99 listed places in Portland → · walking tour → |
Explore
Map
Nearby in Cumberland County
Local history books for Portland
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Henry Wadsworth Longfellow in PortlandJohn William Babin and Allan M. Levinsky, 2015Find at Bookshop.org
Maine travel guides
Titles come from Open Library's catalog, matched by subject heading or by title.
Reference
Questions people ask
When was McLellan-Sweat Mansion listed on the National Register?
Mar 5, 1970. It is also a National Historic Landmark, the higher of the two designations.
Source: National Park Service
Where is McLellan-Sweat Mansion?
111 High St., Portland, Cumberland County, Maine.
Source: National Park Service
Where is the nomination form for McLellan-Sweat Mansion?
The National Archives holds the nomination form, the document that made the case for listing.
Source: National Archives
Is there a wildfire near McLellan-Sweat Mansion right now?
1 active incident within 50 miles as of 2026-10-17, nearest South Jackman Rx, 46 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 70000073. 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.