Frogmore House

Frogmore House, Windsor is privately owned by The Queen, and the Royal Family has used it for entertaining and parties over the years. First used by Royalty in the mid 16th century it was probably its locality, so near to Windsor Castle, which made it a suitable residence. In the 1920s, 30s, and even up to the 1970s it was considered for demolition due to damp and dry rot. However its present good condition is due to an extensive restoration in the 1980s. It was saved by English Heritage and is open to the public twice a year in May and August. 
Access for wheelchairs is very good with parking close to the building and a lift to the main entrance of the house. Once inside, although it is not possible to go upstairs, you are able to view many of the rooms. We were given access to rooms otherwise not open to the public, those that Prince Philip uses for private entertainment, as a way of changing levels. We were very satisfied with the tour. 
Also in the gardens of Frogmore stands the mausoleum of Queen Victoria and Prince Albert. Unfortunately it is closed to viewing due to restoration project.