Hobart Circle Historic District

Troy, Miami County, Ohio Listed Ref. 89000419 Historic district
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Why it's listed

Hobart Circle in Troy, Ohio, is a small subdivision of houses made entirely of welded steel. The Hobart brothers' Hobart Welded Steel House Co. fabricated each house of 18 gauge steel in its West Main Street factory and delivered it by truck to the site. The houses date from 1938 to 1940 and were first held as rentals by the company, then sold in the mid to late 1940s. The survey counts 21 surviving Hobart houses, with the Circle holding a notable group. Styles include Georgian Revival, Cape Cod, Dutch Colonial Revival and a rare Moderne example. Original features such as welded steel entrance hoods, circular windows and sixteen-light casement windows survive on some houses, and one lot keeps an original steel storage shed described as the only one of its style. Others have been altered with vinyl siding, replacement windows and new roofs, though the steel construction remains. Together they document an unusual local experiment in prefabricated housing.

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).

StylesGeorgian Revival, Cape Cod, Dutch Colonial Revival, Art Moderne ("Hobart Colonial")
Areas of significanceIndustry, Engineering, Architecture
Acreage2
Boundary sourceNPS cultural-resource GIS polygon
Full listing pageHobart Circle Historic District (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).

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