40 West 4th Centre, 331 ft, 22-story office skyscraper located in Dayton, Ohio
40 West 4th Centre is a high-rise in Dayton, Ohio, completed in 1969 and featuring New Formalism style architecture. The structure has glass facades on the north and south sides with slender vertical steel frames, while the east and west sides are made of brick with patterns and finished with a small decorative cornice at the top.
The tower opened in 1969 and was originally known as the Grant-Deneau Tower, named after architect Paul H. Deneau. It was the first modern high-rise in downtown Dayton and remained the city's tallest building until the Kettering Tower surpassed it the following year.
The building carries the name of its street address and was designed by architect Paul H. Deneau, whose name was long associated with the tower. Today residents and workers occupy the space daily, showing how its purpose has shifted from offices alone to a mixed-use home and work environment.
The building is located in downtown Dayton and easy to spot and reach, especially while exploring the city center. Its position on a busy street makes it a good point to observe the architecture and notice the contrast between older brick structures and modern forms.
The building recently underwent one of North America's largest vacuum insulating glass retrofits, with special arched windows installed on the top floor. These energy-efficient windows solved past problems when the large glass facades caused high heating and cooling costs that even drove tenants away.
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