Unknown Building - School Hill, Between Calvert and Charndon

Due to being on a detour from a road closure, I came across this building today. Does anyone know if it's RAF (or even military)? And what was it used for?

OS Y (Northings) 224733
Nearest Post Code OX27 0BT
Lat (WGS84) N51:55:01 (51.917009)
Long (WGS84) W1:00:58 (-1.016029)
Lat,Long 51.917009,-1.016029
Nat Grid SP677247 / SP6777324733
mX -113103
mY 6751478
Mapcode GBR 9YN.MYL

wtp2.appspot.com/wheresthepath.htm?lat=5...grat=None&rgrat=None

it is not an answer, but the building is visible on the 1945 GE image together with two other larger buildings in the next field.

Peter wrote:

The two holes remind me of a decoy building, possibly a decoy for RAF Bicester?

The site slightly further west had a long building and a shorter one inside a fenced compound so may have been related. From the post war 1950s mapping it looks like they were drawn over the pre-war maps, indicating a wartime addition.

Decoy for Bicester was Grendon Underwood?

But you’re right it does look somewhat decoy like, though not like anything I can recall.

SOE related from Carnabys recent posting of the attached Phd thesis www.airfieldresearchgroup.org.uk/forum/r...re-in-the-uk-in-wwii

"On completion of Station 53b’s transmitter at Godington, SOE’s wireless demands still outstripped capacity. It was, therefore, decided to incorporate Wide Band Receiving Amplifiers at Stations 53a’s transmitter at Charndon."

Would the larger of the two structures be the Receiver Building and the smaller the Transmitter?

Details are on page A9 of the document
Volume 2

and more still in people.uea.ac.uk/portal/services/downloa...nuscript_GREGORY.pdf