I came across this on the web
http://www.babergh-south-suffolk.gov.uk/NR/rdonlyres/4A15B8FA-CA1C-4AED-B773-01B6F20C3EB5/0/airfields.pdf

It indicates that the area I was unsure of was defiantely the old USAAF hospital at Acton.

Can anyone help Identify the “Unknown” buildings? First 10 of my collection. I am still a bit stuck with them!

Richard