Holgate Avenue Historic District
Why it's listed
Holgate Avenue in Defiance, Ohio, is a river-front residential street of twenty-nine houses and several outbuildings, running from 328 to 716 Holgate Avenue along the Maumee River. The land was once a fifty acre tract owned by William C. Holgate, who built the Greek Revival house at 512 Holgate in 1856 and whose estate was platted in 1872. The houses range from mid-nineteenth century to the early twentieth century and include Italianate, Second Empire, Queen Anne, Shingle, Dutch Colonial Revival, Prairie and Craftsman/Bungalow examples. Large lots, deep setbacks, mature trees and a former deer park at 513 Holgate give the street a boulevard-like openness. Long back lots slope to the river and keep remnant Osage Orange and Hackberry hedgerows from earlier pasture use. Directory records show that merchants, bankers, manufacturers and professionals lived here in the 1890s. The district is significant for its link to Holgate, its architecture and its landscape, over a period from 1844 to 1930.
Significance in brief: The district is nominated for its association with William C. Holgate, a leading nineteenth century Defiance citizen, and for its architecture. It shows a timeline of popular house styles over about seventy years. Its spacious setbacks, former deer park lot and surviving hedgerows on the river back lots add a distinctive landscape setting.
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 90001497, listed October 11, 1990. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 328--716 Holgate Ave., Defiance |
|---|---|
| County | Defiance County |
| Listed | October 11, 1990 |
| Reference number | 90001497 |
| Resource type | District |
| Period of significance | 1844-1930 |
| Architectural style | Italianate, Queen Anne, Colonial Revival, Bungalow/Craftsman (also Greek Revival, Second Empire, Prairie) |
| Criteria |
|
| Areas of significance | Community Planning and Development, Landscape Architecture, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | One house (601 Holgate) is noted as unoccupied since the early 1950s and under renovation; the district's historic and current use is single-dwelling residential. |
| Acreage | 21.5 |
| Coordinates | 41.28672, -84.36894 (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 90001497.
- Nomination form (PDF, National Archives) — catalog entry
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.