See also: List of the oldest buildings in the United States. This article attempts to list the oldest buildings in the state of New Hampshire in the United States of America, including the oldest houses in New Hampshire and any other surviving structures from the First Period. Some dates are approximate and based on architectural studies and historical records, other dates are based on dendrochronology. All entries should include citation with reference to: architectural features; a report by an architectural historian; or dendrochronology; or else be denoted as estimates in the separate lower list.
| Building | Location | First built | Notes | ||
|---|---|---|---|---|---|
| Jackson House | Portsmouth | 1664[1] | Often credited as the oldest surviving house in New Hampshire. | ||
| Damm-Drew Garrison House | Dover | 1675 | Part of Woodman Institute Museum[2] | ||
| Sherburn House | Portsmouth | 1695 | Part of Strawbery Banke museum[3] | ||
| Paul Wentworth House | Rollinsford | 1701 | Located at 47 Water St, Rollinsford; it is "educational and cultural center for Rollinsford and the lower Salmon Falls region."[4] | ||
| Gilman Garrison House | Exeter | 1709 | Construction date determined by dendrochronology[5] | ||
| Warner House | Portsmouth | 1716 | One of the finest early-Georgian brick houses in New England | ||
| Newington Meeting House | Newington | 1717 | Oldest church building in New Hampshire | ||
| James House | Hampton | 1723 | First period house, dated by dendrochronology[6] | ||
| Jaquith House (Farley Garrison House) | Gilmanton | c.1725 [7] | Building was moved to NH from Billerica, Massachusetts, in 2010. Once thought to date from 1665; architectural survey estimates c.1725 | ||
| Newington Old Parsonage | Newington | 1765[8] | Located at 2 New Hampshire 4 in Dover | ||
| Bath and Woodsville | 1829 | Oldest covered bridge in New Hampshire |