Preservationists Sought Landmark Status for O'Leary Mansion
Local advocates have filed for landmark protection to prevent the demolition of this historic Chicago residence.
Updated on Sept. 21, 2026 in Home Renovation

Live Poll
Should your local government protect old buildings by granting them official landmark status?
Preservation groups have requested preliminary landmark status for the 125-year-old O'Leary mansion located at 726 W. Garfield Blvd. This effort aims to shield the 33-room property from potential demolition as it remains embroiled in ongoing code violation proceedings.
Why it matters
The designation effort seeks to secure the long-term future of the historic property, which has been subject to court oversight and faced demolition threats. Protecting the site prevents the loss of local architecture currently caught in complex legal and code-compliance disputes.
The 1901 Renaissance Revival mansion features a red sandstone facade and remains the subject of Cook County Circuit Court proceedings. The property was last listed for sale in 2024 with an asking price of $450,000.
The players
Zachary Taylor Davis
The architect who designed the O'Leary mansion in 1901.
James O'Leary
A notable resident who died in the historic house in 1925.
Commission on Chicago Landmarks
The agency responsible for identifying and protecting city buildings of historical significance.
Cook County Circuit Court
The judicial body currently managing the legal case and code violation proceedings regarding the mansion.
The details
Preservation groups presented the landmark request to the Commission on Chicago Landmarks' Program Committee, which forwarded the recommendation to the Department of Planning and Development's Historic Preservation Division. The move aims to halt demolition plans stemming from code violations within the vacant structure. Staffers may now prepare a formal report for the commission to consider the preliminary designation.
Timeline
The mansion was constructed in 1901.
James O'Leary died in the house in 1925.
The home was last listed for sale in 2024.
Preservation groups requested landmark status on September 21, 2026.
Groups will support the status in court in the coming weeks.
The Home Front
The O'Leary mansion serves as a reminder of the complex legal intersections between private property rights and the preservation of city history. Such efforts often reflect broader trends in urban historic protection where aging structures face pressures from modern code compliance regulations.
If you own a historic property in the city, check your local zoning and landmark status to understand your maintenance obligations and potential protections. Consult with a licensed preservation professional if your home is subject to ongoing code violation disputes to ensure compliance.
The takeaway
The request for landmark status is a strategic move to pause demolition during active court proceedings. Residents interested in historic preservation should monitor upcoming commission hearings to track the status of this 125-year-old property.
Further reading
Learn more about local preservation efforts in the Chicago Home Renovation section.
Source note: This article includes information reported by Chicago Sun-Times.
Live Poll
Should your local government protect old buildings by granting them official landmark status?







