UK Parliament is taking part in this year's Open House London on Saturday 21 September 2019.
Admission to Portcullis House for Open House London is free to visitors from the UK and overseas.
Entry will be on a first come, first served basis with no advance booking facilities.
Further details about the programme of events for the day will be added to this page shortly.
Portcullis House is the newest building on the parliamentary estate. It was designed and built by architects Michael Hopkins and Partners, and officially opened by the Queen on 27 February 2001.
Open House London weekend
Open House London is the world’s largest architecture festival, giving free public access to 800+ buildings, walks, talks and tours over one weekend in September each year.