Porchester Square is a typical London garden square is located in the Bayswater neighbourhood of the City of Westminster, just south of the main railway line out of London Paddington station. The name Porchester comes from one of the Hampshire estates of the Thistlewaites who with only two or three other families had been chief lessees of the Bishop of London's land in Paddington since before 1750. The rectangular plot of land was developed in the first half of the 19th century, with a variety of builders involved, resulting in slightly different exterior details in the surrounding houses (now all converted into flats), though porticoed steps to the front doors, sash windows, first floor balconies with wrought iron railings and roofline balustrades are all standard features.