Hillforest (Forest Hill)
U.S. National Register of Historic Places
U.S. National Historic Landmark
U.S. Historic district Contributing property
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Location	213 Fifth Street, Aurora, Indiana
Coordinates	39°3′13.9″N 84°54′6.02″W / 39.053861°N 84.9016722°W / 39.053861; -84.9016722
Area	11 acres (4.5 ha)
Built	1852 (1852)
Architect	Isaiah Rogers
Architectural style	Renaissance, Italian Villa
NRHP reference No.	71000005
Significant dates
Added to NRHP	August 5, 1971[1]
Designated NHL	October 5, 1992[2]

The Hillforest Mansion, also known as the Thomas Gaff House, is located at 213 Fifth Street, in Aurora, Indiana. Built in 1855 on a bluff above the Ohio River, it is one of the finest surviving examples of an Italian Renaissance estate house, and a rare well-preserved example of the work of architect Isaiah Rogers. The mansion, which was designated a National Historic Landmark in 1992,^[2][3] is owned and operated by Hillforest Historical Foundation. It is located in the Downtown Aurora Historic District.

Description and history

Hillforest was designed by Isaiah Rogers and built in 1855 for Thomas Gaff (1808–1884), a Scottish born businessman who moved to Aurora in the 1840s. Gaff and his siblings had a large number of business interests, including alcohol production (distilleries and breweries), railroads, and steamships. The design of Hillforest is evocative of the steamships that plied the Ohio and Mississippi Rivers in the 19th century.^[3]

The Hillforest estate is 11 acres (4.5 ha) in size, and includes, in addition to the house, formally landscaped gardens, a carriage house (a non-historic 1970s reconstruction), and land historically used for farming. The house is a 2-story frame structure covered by a low-pitch hip roof. Its main facade is finished in vertical wide board siding, while the other facades are finished in shiplap siding, with wooden quoin blocks at the corners. A semicircular section projects at the center of the main facade, rising to a belvedere on the roof. A single-story porch extends across the full width of the facade, with a second-story porch around the central projection. Windows are of full length, removing the need for doors to access the porches. The interior is sumptuously finished, with original Trompe-l'œil artwork on the walls.^[3]

The property remained in the Gaff family until 1926, when it was purchased by William Stark, a furniture manufacturer. The house served as a VFW lodge for a time, and was turned into a museum in 1956.