

At 601-607 Main Street: 
in Middletown stands an impressive five-story Colonial Revival structure, built of granite, brick and concrete block. Now serving as low income housing, it was built in 1914-1915 as the Hotel Arrigoni by Frank Arrigoni, a prominent local building contractor. He and his brother, Dionigi Arrigoni, immigrants from Italy, owned the hotel and established Arrigoni & Brother, a road construction company that built many miles of highway in Connecticut. The hotel was run by the Arrigoni family until 1963. The building, later known as the the March Inn and then the Arriwani Hotel, was converted it into a rooming house. In 1995-1996, it was converted into Liberty Commons, the first supportive housing program in the state. The building also houses:
The Buttonwood Tree 
a nonprofit performing arts and cultural center.

Arthur Magill, Jr. House (1821)
The building at 625-631 Main Street in Middletown is a Late Federal-style mansion (with early Greek Revival features), built in 1821 by Arthur Magill, Jr. With his father, Magill founded the Middletown Manufacturing Company, the first woolen mill to use steam power. Financial setbacks and a lost law suit in the Connecticut Supreme Court forced Magill to give up the property in 1832. From 1835 to 1870, the house was home to a boys preparatory school, run by Daniel Chase. D. Luther Briggs later lived in the house. He was Mayor of Middletown from 1890 to 1893. By that time, the building had been converted to commercial use, serving as a hotel/boarding house under various names until 1943. It now houses a Community Health Center.
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Information From The Greater Middletown Preservation Trust and Historic Buildings of Connecticut
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