[1] The association originated as the Historic Houses Committee of the British Tourist Authority, and was independently established in 1973[2] to help owners maintain and conserve significant homes in the interests of the nation's heritage.
In 1974, the HHA participated in a campaign in response to the publication of a governmental green paper on a proposed wealth tax.
[3] Today, Historic Houses represents, advises, and helps to publicise its member properties, and runs an access scheme for the general public.
More than half of member properties (c. 800) open their doors in some way, from visitors on a day or, special tour, or school trip, through to film locations, weddings and events, or as memorable places to stay.
Several hundred more houses that do not normally open offer occasional accompanied tours, which can be booked through the association's 'Invitation to View' platform.