Toddington Manor, Beds.

Private – non current.
The manor has a long history, and parts date from the Tudor period. The building used to be much bigger (see Wikipedia).
The gardens were open to the public on limited dates, and when I went a few years ago a tractor collection and other agricultural things were also on display. The gardens (with lake) are quite worth seeing. The house is not open to the public.
Toddington Manor is of special interest to me as until recently it was owned by Sir Neville Bowman-Shaw, who was the MD of Boss Trucks Ltd, where I used to work, and which went bust in 1994. I lost my job, while Sir Neville continued to lord it over Toddington Manor.
The estate was sold, asking price £6.5M. The tractor collection was apparently sold at auction.
The estate agent’s brochure gave a surprising amount of detail.