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A Look at the Past, Present, and Future of the Gem City

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Grant-Deneau Tower

grant deneau towerThe Deneau Tower, also known as the Grant-Deneau Tower and 40 W 4th St, is a 22-story office tower in Downtown Dayton built in 1969. When it was completed it was the tallest building in Dayton, but it was soon surpassed by the Stratacache (Kettering, Winters Bank) Tower.

As the first modern high-rise in the city and a great example of mid-century modern architecture, it is a significant Dayton building.

A mixed-use redevelopment project by the Windsor Companies is scheduled to open soon with residential, office, and retail.

To read the articles we've published on the Grant-Deneau Tower, click the links below.

5 Dayton Redevelopment Projects to Watch in 2026: Housing, Office, Retail, and Historic Preservation

January 23, 2026 By Andrew Walsh Leave a Comment

dayton arcade retail concourse

Downtown Dayton and its historic neighborhoods are taking some significant steps forward. In the first episode of my new Dayton Vistas Podcast, I take a closer look at five redevelopment projects to watch in 2026, spanning major adaptive reuse efforts downtown as well as … [Read more...] about 5 Dayton Redevelopment Projects to Watch in 2026: Housing, Office, Retail, and Historic Preservation

Filed Under: New Developments Tagged With: Centre City Building, Dayton Arcade, Dayton Vistas Podcast, Grant-Deneau Tower, Longfellow School, New Housing, Salem Ave, Salem Ave Peace Corridor, Wolf Creek, Wright-Dunbar

The Deneau Tower: History and Redevelopment

April 4, 2025 By Andrew Walsh Leave a Comment

deneau tower views

The Deneau Tower is a major fixture in Dayton's skyline and also holds a special significance in the story of downtown's progress during the suburban exodus of the mid-20th century. It was built in 1969, and because of its era the building has not been admired in quite … [Read more...] about The Deneau Tower: History and Redevelopment

Filed Under: New Developments Tagged With: Architecture, Downtown Dayton, Features, Grant-Deneau Tower, Modernism, Paul Deneau, Urban Renewal, Windsor Companies

Dayton Office Towers: New Proposals and Occupancy, Vacancy Rates Over Time

November 22, 2023 By Andrew Walsh Leave a Comment

centre city building

In our series on downtown Dayton's Courthouse Square, we mentioned that the KeyBank Tower is largely vacant, with the bank pulling out in favor of a new downtown office and the tower's out-of-state ownership unavailable for comment. One key tenant, however, remained in … [Read more...] about Dayton Office Towers: New Proposals and Occupancy, Vacancy Rates Over Time

Filed Under: New Developments Tagged With: Banking, Centre City Building, Dayton Arcade, Downtown Dayton Partnership, Fidelity Building, Grant-Deneau Tower, Keybank Tower, Premier Health

The Arcade is a Go; What Pending Downtown Development Could Be Next?

June 5, 2019 By Andrew Walsh 11 Comments

Dayton Daily News Redevelopment Site

The Dayton Arcade redevelopment is now officially underway, and it's been called a "catalytic" project for the downtown core with the potential to "spur further economic growth" in nearby areas. So what could be the next domino to fall? This article will take a look at some … [Read more...] about The Arcade is a Go; What Pending Downtown Development Could Be Next?

Filed Under: New Developments Tagged With: 34 North Main, Centre City Building, Coon Restoration, Dayton Arcade, Dayton Grand Hotel, Doubletree Hotel, Features, Fidelity Building, Grant-Deneau Tower, Hotels, Levitt Pavilion, Paru Tower, Reynolds and Reynolds

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My book explores a diverse selection of retail, industrial, entertainment and residential sites from Dayton's disappearing legacy.
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