Westminster Cathedral
The site on which the cathedral stands in the City of Westminster was purchased by the Diocese of Westminster in 1885, and construction was completed in 1903. Westminster Cathedral is the largest Catholic church building in England and Wales and the seat of the Archbishop of Westminster.
Plymouth Cathedral
Since the diocese's foundation, the small church of Saint Mary, erected in 1807 at "Saint Mary Street", had served as Pro-cathedral. Vaughan decided to build a cathedral replacing the pro-cathedral. On 20 February 1856, he bought a portion of land on the town's outskirts. It cost £3,904: £1,000 from Mr Bastard and the remaining money was raised throughout the diocese and elsewhere in England. Joseph Hansom and Charles Hansom were the architects and local men from Stonehouse built it. Work commenced on 22 June, during which a Royal Navy officer fired new Turkish Man-of-war guns in Plymouth Sound, which caused subsidence. The Cathedral was opened with Mass on 25 March 1858 (the Feast of the Annunciation), and consecrated by Vaughan on 22 September 1880.