Brighton Pavilion (UK Parliament constituency) Pavilion for the Greens at the 2017 general election. Brighton Pavilion (UK Parliament constituency) Brighton Pavilion is a constituency represented in the House of Commons of the UK Parliament since 2010 by Caroline Lucas of the Green Party; who on being elected, became the first MP for that party in the United Kingdom. 1950–1983: The County Borough of Brighton wards of Hollingbury, Montpelier, Patcham, Pavilion, Preston, Preston Park, Regency, St Nicholas, St Peter's, and West. 1983–1997: The Borough of Brighton wards of Hollingbury, Patcham, Preston, Regency, St Peter's, Seven Dials, Stanmer, and Westdene. 1997–2010: The Borough of Brighton wards of
Orkney and Shetland (UK Parliament constituency) in having its boundaries protected by legislation. The constituency has the second smallest electorate of any UK parliamentary constituency, after Na h-Eileanan an Iar. The constituency has elected only Liberal and Liberal Democrat MPs since 1950; the longest run of any British parliamentary constituency.At each general election from 1955 until 1979, in 1987, 2010 and again in 2017 it was the safest Liberal Democrat seat in the UK. At the May 2015 general election, it was the only seat in Scotland to return a Liberal Democrat MP. Two years later, in 2017, the Lib Dems gained three more seats in