Its main facade is three bays wide, with a center entrance sheltered by a gabled porch.

The principal rafters supporting the roof are bent, a unique adaptation of a medieval Welsh construction technique to the building.

The building does not follow what are now considered standard norms for Quaker meeting houses.

Prior to the English Toleration Act 1688, which allowed Quakers to worship openly and freely in England and its colonies, Quakers traditionally met either in the open, or in houses or barns, and had no settled architecture to satisfy the organizational needs of their congregations, which call for sex-segregated business meetings.

The Welsh-infused architecture of this building stands as a memorial to the early experimental period of meeting house design.