Barber-Colman Company Historic District
Why it's listed
Barber-Colman Company's former manufacturing complex occupies about 12 acres on the west bank of the Rock River, south of downtown Rockford, Illinois. Fifteen brick and masonry structures, built between 1907 and 1948, remain from an original twenty industrial buildings and two gatehouses. Counted as eleven resources, they include mill-construction lofts, reinforced concrete and steel-frame lofts, truss-roofed factories, industrial garages, a powerhouse and two small gatehouses. The company numbered each building as a "Section" in order of construction, and several are joined by ground-floor connections or overhead walkways. Flat, bowed or sawtooth roofs and multi-light metal windows give the group a unified look. The company began in 1900 at Loomis and Rock streets and grew into a worldwide producer of textile machinery, machine tools, overhead doors, electrical controls and heating and air conditioning controls. Large vacant lots, once company parking, separate the complex from the neighborhood. The property is now vacant and fenced.
Significance in brief: The complex was the main industrial site of the Barber-Colman Company, which opened in Rockford in 1900-1902 and grew into a worldwide maker of textile machinery, machine tools, electrical products, overhead doors and heating and air conditioning controls. The buildings are a cohesive set of industrial types built in different periods. They show how the company expanded over about fifty years and are the dominant industrial complex in the South Main Street area.
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 06000674, listed August 8, 2006. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 100 Loomis, 1202-1322 (even) Rock St., Rockford |
|---|---|
| County | Winnebago County |
| Listed | August 8, 2006 |
| Reference number | 06000674 |
| Resource type | District |
| Architectural style | Other: Factory; Other: Industrial Loft |
| Areas of significance | Industry, Invention, Architecture, Engineering |
| Level of significance | Local |
| Status (as stated in the nomination) | Current function is listed as vacant/not in use; the site is fenced with a locked gate on Loomis Street, and some historic structures have been demolished. |
| Acreage | 12.8 |
| Coordinates | 42.25951, -89.09794 (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).
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.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 06000674.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q16980254
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.