Brookby contains a broad-fronted and winged, red brick, Georgian Revival country house and other subsidiary buildings set on eight acres of beautifully landscaped grounds with formal gardens, terraces, and manicured lawns overlooking Fisk Lake. The quiet symmetrical house has a low-pitched hipped roof beneath which runs a corbeled brick belt course. The central entrance is flanked by Corinthian pilasters and topped by a segmental arch. The house was built for John W. Blodgett (1860–1951), financier, lumberman, and philanthropist who was the son of pioneer lumberman Delos A. Blodgett, and for his wife, Minnie Cumnock Blodgett, who was nationally known for her work in public health and welfare. The house is an important work of A. Stewart Walker of Walker and Gillette, a prominent New York City firm best known for its large revival-style country and suburban houses designed in the 1910s and 1920s.