Accountants House is a heritage-listed commercial building and former warehouse located at 117-119 Harrington Street, in the inner city Sydney suburb of The Rocks in the City of Sydney local government area of New South Wales, Australia. It was designed by Spain and Cosh and built c. 1914. It is also known as Dawnay Day House. The property is owned by Property NSW, an agency of the Government of New South Wales. It was added to the New South Wales State Heritage Register on 10 May 2002.