Dayton Power and Light Building Group

Dayton, Montgomery County, Ohio Listed Ref. 06000273 Historic district
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The National Park Service has not published a boundary polygon for this district; the map shows the listed properties inside it and the district's reference point.

Why it's listed

Three brick industrial buildings on the north side of East Third Street in Dayton make up this group, part of the Webster Station industrial area just east of downtown. The C. F. Ware Coffee Company Building dates from 1895, the Dayton Power and Light steam plant from 1907, with additions in 1917 and 1948, and the six-story J. K. McIntire Building from 1912. The two warehouse buildings are Commercial in style, while the power plant carries Classical Revival detailing and a large arcaded facade. The plant supplied power to much of downtown's eastern industrial districts and is the only survivor of two such plants. The McIntire Building first served as a grocery warehouse, later housed General Electric Supply, and from 1946 to 1948 was leased by the Monsanto Company for research on the biological effects of polonium, tied to the Manhattan Project. The group was listed for its industrial and transportation history and its period architecture. The McIntire Building has been vacant in recent years.

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) · catalog entry. Generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29).

Period of significance1895-1950
StylesLate 19th & 20th century American Movement: Commercial and Classical Revival styles
Areas of significanceCommerce, Industry, Architecture, Military, Science
Acreage1.4
Boundary sourcenot published
Full listing pageDayton Power and Light Building Group (property record)

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).

Noted as vacant in the nomination. Nomination documents can be decades old; current status may differ. If you are considering buying an empty listed property, read the due-diligence checklist.

General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.