Dorchester-Milton Lower Mills Industrial District (Boundary Increase)
Why it's listed
Along the Neponset River at Pierce Square, the Lower Mills Industrial District spans Dorchester in Boston and the town of Milton. It holds 16 industrial buildings, nearly all built for Walter Baker & Co., the chocolate maker, plus the Mason Regulator Co. building. This amendment adds the Baker Warehouse at 4 River Street, completed in 1947 as the last major building of the Baker complex. It is a large L-shaped brick and concrete structure with a flat roof, few windows, brick quoins and paired piers on the north facade, and a 1958 brick addition along River Street. Its rear once carried a conveyor bridge linking it to the manufacturing plant. The warehouse is tied to the company's growth under Henry L. Pierce, the later corporate period, and ownership by General Foods from 1927. Because it fits the district's architectural and historical character and retains its integrity, the district's boundaries and period of significance were extended to include it.
Significance in brief: The warehouse is significant for its association with the Walter Baker & Co. chocolate manufacturing plant, the last major building built for the Baker complex. It is consistent with the district's architectural and historical significance and keeps its integrity. The amendment extends the district's boundaries and period of significance to include it.
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 01000304, listed April 6, 2001. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | Roughly: Adams, River, Medway Sts., Millers Lane, Eliot and Adams Sts., Boston |
|---|---|
| County | Suffolk County |
| Listed | April 6, 2001 |
| Reference number | 01000304 |
| Resource type | District |
| Period of significance | 1867-1951 |
| Architect / builder | Bradlee, Winslow & Wetherell; Winslow & Wetherell; Winslow & Bigelow; Shepard, George F.; Walter Kidde Constructors Inc. |
| Architectural style | Queen Anne, Romanesque Revival, Second Empire, Georgian Revival, Tapestry Brick and Modern (district); the warehouse has minimal classical ornamentation |
| Criteria |
|
| Areas of significance | Architecture, Commerce |
| Level of significance | Local |
| Status (as stated in the nomination) | Of the district's 16 contributing buildings, seven were converted to condominiums and one to elderly housing, four remain in business use, and four are vacant. The added warehouse is a large brick and concrete building with a 1958 addition. |
| Acreage | 5 |
| Within district | Dorchester-Milton Lower Mills Industrial District |
| Coordinates | 42.27144, -71.06831 (NPS GIS) |
What listing means for this property
This is a historic district. Buildings within its boundary are either contributing (they add to the district's significance) or non-contributing. Owners of contributing income-producing buildings can claim the 20% federal rehabilitation tax credit; homeowners should look at state credits. National Register districts impose no design review by themselves; a local historic district ordinance, if one exists, does (the difference explained).
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 01000304.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q5297588
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.