If you okay with grass runway try Damyns Hall. ( EGML )
Damyns Hall Aerodrome, Damyns Hall Airfield, Damyns Hall, Flying Schools, Aircraft Storage, Events, Film Location, Showground, Essex Airfield, EGML
No landing fee and no ATC.
5 mins taxi ride to Upminster underground station. One of the local pilot may even run you to the station.