Hammond Castle
Also known as Abbadia Mare
About Hammond Castle
Hammond Castle, at 80 Hesperus Ave., was added to the National Register of Historic Places on May 8, 1973. It was among the first 3 of Gloucester’s 30 listings, with one other the same day. The Register lists it for its military, science, architecture and communications, at the state level. The listing covers 6.5 acres.
What it isCastle located in Gloucester, Massachusetts. From Wikidata (CC0). Read about it on Wikipedia ↗
PDFRead the original nominationThe form that put it on the Register, with its history, photos and a map · 46 MB · National Archives↗Finding Hammond Castle
80 Hesperus Ave., Gloucester
No other Register listing is within a short walk. The nearest are under Around it.
4 more Register listings within 2 miles
★ National Historic Landmark · D district · B building · S site. Each opens its own page.
Memories of Hammond Castle
The record says what it is. Neighbors know what it means.
Your answer becomes a post in Town Square.
Questions about Hammond Castle
Is Hammond Castle on the National Register of Historic Places?
Yes. It was added on May 8, 1973 (Register number 73000298).
Is Hammond Castle a National Historic Landmark?
No. It is on the National Register; Massachusetts has 189 National Historic Landmarks. The nearest is Beauport, 1.7 miles away.
Can you visit Hammond Castle?
Yes: it is open to visitors. Check opening times before you go.
Where can I read the history of Hammond Castle?
In its National Register nomination, the form that put it on the Register: a 46 MB PDF at the National Archives, linked on this page.
Sources: National Park Service, National Register of Historic Places (05/22/2026) · National Archives catalog record 63794700 · Wikidata. Map tiles © OpenStreetMap contributors.