The theatre is situated on the outskirts of Crawley and overlooks a pond and unspoilt fields. It lies immediately, to the north of the XIIIth century church of St Margaret, in the manor of Ifield which was originally recorded in the Doomsday Book.
The Barn Theatre together with the church, a village pub and some picturesque cottages now forms an officially designated conservation area.
The theatre buildings were created from a group of agricultural buildings and consist of a 700 year old tithe barn which now forms the auditorium with dressing rooms in its outbuildings, a former Granary which serves as a kitchen and stables which have been converted to an exhibition room and workshops.
All three buildings have been linked by a modern addition tastefully integrated to form the foyer and theatre bar.
Due to some inspired fund-raising by members many improvements have been made to the theatre. The Ifield Barn Theatre Society was founded in 1968.