Town Diner
Why it's listed
Town Diner is a restaurant at 627 Mount Auburn Street in Watertown's Coolidge Square, built in 1947 around a smaller Worcester Lunch Car Company diner that was already on the site. That earlier diner was remodeled to serve as the kitchen. The new main block has a steel frame, porcelain enamel panels in cream and teal, a rounded hipped metal roof, rounded front corners and glass block windows at the corners. Inside, an L-shaped counter with a tiled apron and sixteen steel stools remains. Rooftop signs include a clock between the words TOWN DINER. The design blends the traditional barrel-roofed Massachusetts diner with sleeker 1940s forms. Louis Contos took over the business in 1945, and he and his son George enlarged it in 1947. The family ran it until the early 1980s. The property was listed for its architecture and its role in local commerce, as an example of an operator updating a diner and as a visual anchor of a neighborhood shopping district.
Significance in brief: The nomination calls it an early and important example of a built-on-site diner in Massachusetts. It combines the barrel roof and porcelain enamel of traditional Worcester lunch car diners with curved corners, center entry, L-shaped seating and glass block from 1940s diner types. It is also tied to the Contos family, who operated it from 1945 into the early 1980s and transformed it in 1947.
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 99001127, listed September 22, 1999. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).
Key facts
| Address | 627 Mount Auburn St., Watertown |
|---|---|
| County | Middlesex County |
| Listed | September 22, 1999 |
| Reference number | 99001127 |
| Resource type | Building |
| Period of significance | 1947-1949 |
| Architect / builder | DeLoria (architect, per building permits); N. D. C. Construction Company |
| Architectural style | Other: Diner |
| Criteria |
|
| Areas of significance | Architecture, Commerce |
| Level of significance | State |
| Status (as stated in the nomination) | Still used as a restaurant; the neon sign tubes were recently removed, and the 1947 main block retains its historic integrity. |
| Acreage | 0.9 |
| Coordinates | 42.37108, -71.15801 (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 99001127.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q7829944
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.