I have done a few stints at Martlesham and on one occasion flew in, when doing weekend overtime. There is a small grass strip on the periphery of the place that was owned by BT. Helicopters occasionally dropped VIPs off but fixed wing was not welcome!
I tried in vain to get regular access as it would have cut my commute from 25 mins in the car to about 6 in my vintage taildragger and would have made going to work from the field behind a previous house quite fun!
Monewden to MH in the car about 18 mins.