101 Main Street
Dubuque, IA 52001

1 Day on Market

Historic Redevelopment Opportunity – O'Neill Block | Dubuque, Iowa The O'Neill Block presents a rare 18,288 SF mixed-use redevelopment opportunity in the heart of Dubuque’s Old Main Historic District. Seller will consider flexible financing options, including a potential land contract, for qualified buyers. The property features two commercial spaces on the main floor, including a 4,062 SF restaurant/bar with a 6,092 SF finished lower-level bar previously operating as 1st & Main, along with a 2,031 SF bar/retail space formerly known as Esther’s Lounge (spaces are part of the sale but could also be leased). Site also offers a 1,428 SF outdoor patio. These spaces could continue as hospitality venues or be converted into office, retail, or other commercial uses. The upper two floors offer more than 12,000 SF of redevelopment potential, ideal for apartments, condominiums, boutique offices, or creative workspaces, providing a true blank slate for a transformative mixed-use project. Located within the Dubuque Opportunity Zone, the property may qualify for Historic Tax Credits, Tax Increment Financing (TIF), and City of Dubuque housing and façade incentives. The building sits in the center of major downtown investment, including the new John and Alice Butler College of Osteopathic Medicine developed by the University of Dubuque, expansion of the Dubuque Museum of Art, and continued redevelopment in the Historic Millwork District. This site is in extremely close proximity to the Five Flags Center and nearby hotels ...

+ Read More
See More

Listing Courtesy of: DBQ Property Group Inc.
Listing Agent: Nancy Kann
563-580-7257

Mortgage Calculator

Per Month
Principal and Interest
Property Taxes 0
HOA Fees 0
Homeowners Insurance 645
$
$
%
%
$
$
$
%
This MLS® does not provide tax data for this property. Please contact the agent for more information.

The data on this website relating to real estate for sale comes in part from the IDX Program of the East Central Iowa Association of REALTORS®.

All information is believed accurate but not guaranteed. The properties displayed may not be all of the properties available through the IDX Program. Any use of this site other than by potential buyers or sellers is strictly prohibited.

© 2026 East Central Iowa Association of REALTORS®.

East Central Iowa AOR data last updated on October 08, 2026 04:31 PM - CT.

Based on information submitted to the MLS GRID as of October 08, 2026 04:31 PM - CT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Properties displayed may be listed or sold by various participants in the MLS. Some listings have been excluded from this website.

IDX information is provided exclusively for consumers’ personal noncommercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, that the data is deemed reliable but is not guaranteed by MLS GRID, and that the use of the MLS GRID Data may be subject to an end user license agreement prescribed by the Member Participant’s applicable MLS if any and as amended from time to time.

Property Last Updated: October 08, 2026 04:31 PM - CT