Moffatt-Ladd House
Added to the National Register in 1968, and a National Historic Landmark.
The record
| Property type | Building |
| Address | 154 Market St., Portsmouth, NH |
| County | Rockingham County |
| Listed | Nov 24, 1968 |
| Listed for | Politics and government, Architecture |
| Level of significance | National |
| Also known as | William Whipple House |
| Reference number | 68000010 |
| Style | Georgian architecture |
| Designations | National Historic Landmark |
The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗
Visiting
| Address | 154 Market St., Portsmouth, NH |
| Coordinates | 43.0789° N, 70.7589° W · Directions ↗ |
| Also in Portsmouth | 42 listed places in Portsmouth → · walking tours → |
Explore
Map
Nearby in Rockingham County
Public land around it
| Great Bay National Wildlife Refuge ↗National Wildlife Refuge, U.S. Fish and Wildlife Service | About 4 miles away1,170 acres |
Wilderness Atlas publishes a centroid and an acreage for each unit, not a boundary line. Distance here is measured to a circle of the same area drawn around that centroid, so treat it as roughly right rather than surveyed.
Local history books for Portsmouth
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New Hampshire travel guides
Titles come from Open Library's catalog, matched by subject heading or by title.
Reference
Questions people ask
When was Moffatt-Ladd House listed on the National Register?
Nov 24, 1968. It is also a National Historic Landmark, the higher of the two designations.
Source: National Park Service
Where is Moffatt-Ladd House?
154 Market St., Portsmouth, Rockingham County, New Hampshire.
Source: National Park Service
Where is the nomination form for Moffatt-Ladd House?
The National Archives holds the nomination form, the document that made the case for listing.
Source: National Archives
Is there a wildfire near Moffatt-Ladd House right now?
2 active incidents within 50 miles as of 2026-10-17, nearest Morse Rx, 38 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 68000010. 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.