Castle, The
Also known as: Middlesex Medical School; Usen Castle
Why it's listed
Usen Castle, also called The Castle, crowns Boston Rock on the Brandeis University campus in Waltham. Begun in 1928 in the Norman-Gothic style, it combines six linked structures of varying heights around a courtyard, plus a seventh nearby building. Towers, battlements, a bartizan and pointed-arch entrances recall European models such as Lismore and Windsor Castles. Its walls are fieldstone taken from old Baker Estate boundary walls, mixed with quarried rock and colored concrete blocks. Dr. John Hall Smith, a Boston surgeon, founded the Middlesex Medical School here and relied on personal funds, serving as designer, architect and contractor and reusing secondhand materials and windows. When the school could not meet accreditation requirements in 1945, its property passed to the group that founded Brandeis University in 1948. The building was remodeled in the 1950s into student living units and remains a residence, valued as a romantic contrast to the campus's modern buildings.
Significance in brief: The building was begun by Dr. John Hall Smith, founder of the Middlesex Medical School, the first non-quota, non-sectarian medical institution, whose property later became Brandeis University. It is a locally prominent landmark and the city's most grandiose medieval-inspired design, borrowing from Lismore and Windsor Castles. Smith economized by acting as designer, architect and contractor and by using secondhand and local materials.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 79000359, listed April 9, 1979. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 415 South St., Waltham |
|---|---|
| County | Middlesex County |
| Listed | April 9, 1979 |
| Reference number | 79000359 |
| Resource type | Building |
| Period of significance | 1900- |
| Architect / builder | John H. Smith (Dr. John Hall Smith, designer, architect and general contractor) |
| Architectural style | Norman-Gothic |
| Areas of significance | Education, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Altered; in use as a student residence at Brandeis University, with a recent restoration noted. |
| Acreage | 1.1 |
| Coordinates | 42.36717, -71.25564 (NPS GIS) |
What listing means for this property
National Register listing is honorary: it recognises significance and does not restrict what a private owner may do without federal money or permits. It unlocks the 20% federal rehabilitation tax credit for income-producing buildings, state credits in many states, and Section 106 review when federal agencies are involved. See what listing means in practice.
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 79000359.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q7721574
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.