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The Castle
Photo: Mike Lovett, Public domain, via Wikimedia Commons · tap to enlarge
National Register of Historic Places

The Castle

Listed as “Castle, The” · Also known as Middlesex Medical School; Usen Castle

On the National Register since 197947 years
Norman GothicListed 1979Waltham
DirectionsAdd an old photo

Many listed buildings are private homes. Please enjoy them from the street.

About

About The Castle

The Castle, at 415 South St., was added to the National Register of Historic Places on Apr 9, 1979. It was among the first 4 of Waltham’s 108 listings. The Register lists it for its education and architecture, at the local level. It describes its style as Norman Gothic, as it does for 1 other Massachusetts listings. The listing covers 1.1 acres.

What it isHistoric building in Waltham, Massachusetts, United States. 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↗
Through the years

1928 to today

  1. 1928Built
  2. 1979Added to the National Register of Historic Places
  3. 2026On the Register for 47 years
Visit

Make it a walk: 2 landmarks in about 10 minutes

415 South St., Waltham · about 0.3 miles on foot, as the crow flies

DirectionsWalk the tour in Google Maps
  1. 1The CastleStart here
  2. 2Samuel Harrington HouseGeorgian · Built 1750 · 0.3 mi on
Around it

7 more Register listings within half a mile

★ National Historic Landmark · D district · B building · S site. Each opens its own page.

BFrederick Flagg HouseGeorgian Revival · Built 19300.3 miSMount Feake CemeteryVictorian · Built 18570.4 miBCompany F State ArmoryGeorgian · Built 19080.5 miBUnited States Watch CompanyRomanesque Revival0.5 miBNelson F. Libby HouseQueen Anne · Built 18910.5 miBEdwin C. Johnson HouseGreek Revival · Built 18400.5 miBNathan Warren HouseQueen Anne · Built 18400.5 mi

Memories of The Castle

The record says what it is. Neighbors know what it means.

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Have an old photo of it?Add it · +10

Questions about The Castle

Is The Castle on the National Register of Historic Places?

Yes. It was added on Apr 9, 1979 (Register number 79000359).

Is The Castle a National Historic Landmark?

No. It is on the National Register; Massachusetts has 189 National Historic Landmarks. The nearest is Boston Manufacturing Company, 1.1 miles away.

Can you visit The Castle?

Our record doesn’t say whether it is open to visitors. Many listed buildings are private, so it may only be seen from the street.

Where can I read the history of The 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 63795913 · Wikidata. Map tiles © OpenStreetMap contributors.