The present gatehouse is all that remains of the Great Gate of the monastery. Built around 1475, the main gateway was destroyed in the 18th century during the construction of the road to Warboys. According to tradition the gate was moved to Hinchingbrooke House, then a modest nunnery

The gatehouse at Hinchingbrooke

Some views of the Ramsey Abbey Gatehouse

The remaining turret is a fine example of late 15th century Perpendicular architecture, including richly carved panels, a plain two-light window lighting the ground floor and a two-light cinquefoiled oriel window above. The current archway  joining the Gatehouse was designed and built in the late 18th century by Sir John Soane (architect of Wimpole Hall).

The contents of the gatehouse include an effigy of Ailwyn, first abbot of the abbey, and several capitals and bosses from the original structure.

The gatehouse was used at one time as a prison with a reed thatched roof, and it was possibly at this time that the upper part was destroyed.

The gatehouse is now administered by the National Trust. Entry is free and the gatehouse can be visited during daylight hours (The abbey can be visited on Sundays)