Hammond Castle is a Medieval castle in Gloucester, Massachusetts, and a filming location for FETCH! with Ruff Ruffman (2006) and Love on the Spectrum U.S. (2024). Built in 1929, it was designed by Allen & Collens, and is listed on the U.S. National Register of Historic Places.
Location: 80 Hesperus Avenue, Gloucester, Massachusetts, United States
Verified facts
- Located in Magnolia, Gloucester, Massachusetts
confidence 80/100 · 6 recorded source groups · SRC-0332, SRC-0333, SRC-0476, SRC-0620, SRC-3864, SRC-3865 - Designed by Allen & Collens
confidence 70/100 · 3 recorded source groups · SRC-0334, SRC-0335, SRC-2999 - Built in 1929
confidence 70/100 · 3 recorded source groups · SRC-0334, SRC-0336, SRC-0477 - Architectural style: Medieval
confidence 95/100 · 5 recorded source groups · SRC-0335, SRC-0336, SRC-0333, SRC-0332, SRC-0621 - Historic designation: National Register of Historic Places (listed May 8, 1973; ref. #73000298)
confidence 75/100 · 3 recorded source groups · SRC-0337, SRC-0338, SRC-0478 - Appeared in FETCH! with Ruff Ruffman (tv, 2006)
confidence 70/100 · 3 recorded source groups · SRC-9360, SRC-9361, SRC-9511 - Appeared in Love on the Spectrum U.S. (tv, 2024)
confidence 70/100 · 3 recorded source groups · SRC-9362, SRC-9363, SRC-9512
Evidence & sources
- SRC-0332 — Hammond Castle Museum (official) (Tier 1, owner_statement; retrieved June 2026)
- SRC-0333 — Wikipedia (Tier 3, encyclopedia; retrieved June 2026)
- SRC-0334 — Boston Magazine (Tier 2, journalism; retrieved June 2026)
- SRC-0335 — Harvard Magazine (Tier 2, journalism; retrieved June 2026)
- SRC-0336 — History of Massachusetts Blog (Tier 2, journalism; retrieved June 2026)
- SRC-0337 — National Park Service, National Register of Historic Places (NPGallery) (Tier 1, official_archive; retrieved June 2026)
- SRC-0338 — National Register of Historic Places listings in Gloucester, Massachusetts (Wikipedia) (Tier 3, encyclopedia; retrieved June 2026)
- SRC-0476 — Addison Choate Realty – Why Visit Hammond Castle Museum On Cape Ann? (Tier 3, article; retrieved June 2026)
- SRC-0477 — Atlas Obscura — Hammond Castle Museum (Tier 2, reference_article; retrieved June 2026)
- SRC-0478 — City of Gloucester, MA – Historic Listings and Designations in Gloucester (2024) (Tier 1, official_archive; retrieved June 2026)
- SRC-0620 — Remitly Beyond Borders — Explore Hammond Castle: A Unique Massachusetts Gem (Tier 3, established_blog; retrieved June 2026)
- SRC-0621 — Discover Gloucester — Hammond Castle Museum (Cape Ann Chamber / destination marketing) (Tier 3, tourism_portal; retrieved June 2026)
- SRC-2999 — Fifty Plus Advocate – One of world's best-known castles is found in Gloucester (Tier 2, news_article; retrieved June 2026)
- SRC-3864 — bostonmagazine.com (Tier 3, reference; retrieved June 2026)
- SRC-3865 — britannica.com (Tier 2, journalism; retrieved June 2026)
- SRC-4736 — Visit Massachusetts (state tourism office) (Tier 2, tourism_authority; retrieved June 2026)
- SRC-9360 — harborwalk.gloucester-ma.gov (Tier 2, journalism; retrieved June 2026)
- SRC-9361 — nhpbs.org (Tier 2, journalism; retrieved June 2026)
- SRC-9362 — wokq.com (Tier 2, journalism; retrieved June 2026)
- SRC-9363 — thecinemaholic.com (Tier 2, journalism; retrieved June 2026)
- SRC-9511 — Wikipedia — List of Fetch! with Ruff Ruffman episodes (Tier 2, reference; retrieved June 2026)
- SRC-9512 — NewsBreak — Castle In Massachusetts Featured On New Netflix Show (Tier 2, journalism; retrieved June 2026)
How we verify
The entries above show the sources and confidence scores recorded in our fact ledger.
Source tiers are internal classifications, not guarantees of accuracy or independence.
Several sources may repeat the same underlying account; a source count alone does not establish independent corroboration. We show the
street address only for non-residential public landmarks (museums, commercial and civic buildings,
publicly documented filming-location sites); the exact addresses of private residences and any
personal information are structurally barred from publication. Last reviewed June 2026.
Plan Your Visit
Hours: Open daily 9:00am-3:30pm; last entrance 2:45pm
Admission: Guided and self-guided tours; senior and child (5-12) discounts; ages 4 and under free; MA EBT/WIC holders free daytime admission. Advance online reservations required.
Frequently asked questions
How is Hammond Castle connected to FETCH! with Ruff Ruffman?
Hammond Castle, in Gloucester, Massachusetts, has a documented connection to FETCH! with Ruff Ruffman. Read the sourced facts on this page for the type of connection. Other associated screen titles include Love on the Spectrum U.S..
How is Hammond Castle connected to Love on the Spectrum U.S.?
Hammond Castle, in Gloucester, Massachusetts, has a documented connection to Love on the Spectrum U.S.. Read the sourced facts on this page for the type of connection. Other associated screen titles include FETCH! with Ruff Ruffman.
Can you visit Hammond Castle?
Yes — Hammond Castle is open to the public. Hours: Open daily 9:00am-3:30pm; last entrance 2:45pm. Admission: Guided and self-guided tours; senior and child (5-12) discounts; ages 4 and under free; MA EBT/WIC holders free daytime admission. Advance online reservations required..
Who designed Hammond Castle?
Hammond Castle was designed by Allen & Collens.
Where is Hammond Castle located?
Hammond Castle is located in Gloucester, Massachusetts.