Skip to content
Photo: Biff Bouse

Merrimac Street · No. 323 · NWB.1794

323 Merrimac Street

Moses Hoyt House

Built 1775–1830National Register district
Built
c. 1779
Style
Center-chimney half house Colonial
Neighborhood
Merrimack Shipbuilding District
MACRIS
NWB.1794 ↗
Formerly
279 Merrimac Street

History

Moses Hoyt (1743-1822) was born in Newbury and moved to Hawke (now Danville, New Hampshire) in 1773. His house caught on fire while his wife was away, and the older children rescued the two younger twins. Nothing was saved, and the family returned to Newburyport before February 1778.

Planning work on this building?

Reviews that may apply

Newburyport Historic District (National Register, listed 1984), contributing in the 1984 nomination · Demolition Control Overlay District (DCOD) · Parcel 64-25 · Zone R2

  1. Zoning Board of Appeals decides

    Listed as contributing in 1984, so removing more than 25% of its exterior walls, counted cumulatively since 2014 and including walls enclosed by an addition or openings filled in, needs a DCOD special permit; the Board may grant one only if the building retains no substantial remaining market value or reasonable use. The Historical Commission sends an advisory report. Replacing siding, or windows and doors in their openings, does not count.

    Zoning Ordinance §XXVIII ↗

  2. Newburyport Historical Commission decides whether to impose a delay

    Built c. 1779, so 75 or more years old: removing more than 25% of its exterior walls, changing the roofline (pitch, towers, cupolas, anything projecting above the roof), moving it, or adding a dormer that misses the setback and pitch rules is "demolition" under the demolition delay ordinance. The Commission holds a hearing within 30 days and may impose a delay of up to 18 months. In the DCOD the wall test goes to the Zoning Board instead; the Commission keeps roofline, roof pitch and dormer work. Parts of the building documented as younger than 75 years are excluded on a written determination by the Zoning Administrator.

    Code of Ordinances ch. 5 art. X, §§5-307–5-308 (June 2026) ↗

  3. Zoning Administrator first stop

    Every project starts with a zoning determination from the Zoning Administrator, which says which of these reviews apply and whether the work also needs zoning relief (a special permit for a non-conformity, or a variance). Fees, forms and filing deadlines are on the City’s site.

    City flowchart, June 2026 ↗

Not legal advice, not an official City publication, and not the position of the Historical Commission or any board. Says what the ordinances say as of September 30, 2026; the Zoning Administrator decides what applies. Boundaries: Merrimack Valley Planning Commission / City of Newburyport GIS (MIMAP); 1984 status from the National Register nomination's district data sheets. City's quick guide to the DCOD and demolition delay ↗ · Do I need approval? Project by project →

Sources

  1. Massachusetts Cultural Resource Information System - NWB.1794
  2. Sanborn Fire Insurance Map from Newburyport, Essex County, Massachusetts. Sanborn Map Company, Oct 1914. Map.
  3. Hoyt, David Webster. Hoyt Family: A Genealogical History of John Hoyt of Salisbury, and David Hoyt of Deerfield, (Massachusetts,) and Their Descendants: with Some Account of the Earlier Connecticut Hoyts, and an Appendix, Containing the Family Record of William Barnes of Salisbury, a List of the First Settlers of Salisbury and Amesbury, & C. United States, C.B. Richardson, 1857.
  4. 1914 Sanborn map, sheet 3b (Library of Congress, Geography and Map Division, Sanborn Maps Collection)