The house contains some of Guildford borough's art collection including the world's largest public collection of pastel portraits by Guildford-born artist, John Russell, RA (1745–1806). Guildford House hosts changing exhibitions throughout the year. In June 2009 Guildford House, along with Guildford Museum, Guildford's Guildhall and Guildford Castle were brought together and run collectively as 'Guildford Heritage'.
The house is a grade I listed building in part for having many original features including a carved staircase, panelled rooms, decorative plaster ceilings and wrought iron window fittings. A second reason for its listing, in the top category, is its timber-framed basic structure, which is clad to the front in painted wood and to the rear in mathematical tiles and tile-hanging.
- Guildford House Gallery - official site at Guildford Borough