Jonathan Nicholson, resident of one of the new houses on the Marley estate — formerly the site of the modern Syon Abbey — has self-published a wonderful collection of photographs, maps, and historical descriptions pertaining to the Marley Estate. It begins with the earliest history and contains many details about the Bridgettine sisters’ time there, beginning in 1925, as well as more modern development starting in the ’90s.
Available for purchase here on Lulu (sold at cost).
Jonathan Nicholson can be reached at ashridge42@live.co.uk.
[sample photos from the book coming soon!]
The Syon Abbey Society 
Just a note that my email address has had a couple of important figures transposed! It should be ashridge42@live.co.uk