Brighton Town Hall occupies a large site in The Lanes. Medieval Brighthelmston had a town hall, although it was called the Townhouse and functioned more like a market hall. A later building (1727) known as the Town Hall was principally used as a workhouse. Work on the first purpose-built town hall began in 1830; Thomas Read Kemp laid the first stone, and Thomas Cooper designed it on behalf of the Brighton Town Commissioners (of which he was a member). Brighton Corporation spent £40,000 to extend it in 1897–99 to the Classical design of Brighton Borough Surveyor Francis May. Despite this, the building was too small for municipal requirements by the mid-20th century, and extra council buildings were built in various locations throughout Brighton Borough Council's existence: the most recent, Bartholomew House and Priory House next to the town hall, were finished in 1987. The town hall ceased to be responsible solely for Brighton's affairs when Brighton and Hove were united in 1997, but it is still used by Brighton & Hove City Council—particularly for weddings and civil ceremonies.