It was originally established to maintain
London Bridge and, subsequently, other bridges. Funded by bridge tolls and charitable donations, the foundation acquired an extensive property portfolio which made it more than self-sufficient. As well as maintaining the bridges, the foundation also makes charitable grants. It is one of three trust funds managed by the City of London, the other two being the City Fund and the
City's Cash. Since it was established, the foundation has maintained, and on several occasions replaced, London Bridge. The foundation also built
Blackfriars Bridge and
Tower Bridge, and purchased
Southwark Bridge from the toll-exacting private company that built it. Most recently it took over ownership and maintenance of the pedestrian-only
Millennium Bridge, having provided a large amount of the funding for its construction. The estate owns significant amounts of property in the
City of London. Until 1995, the foundation was permitted to use its income only for expenditure on its bridges. However, with a surplus of income over expenditure, a
cy-près scheme was adopted in that year to allow any surplus income to be used for other charitable purposes benefiting
Greater London. From 1995 to September 2023 the charity funding arm was known as City Bridge Trust. In September 2023 Bridge House Estates and the City Bridge Trust merged unifying the brand as the City Bridge Foundation, however the formal entity name is still the Bridge House Estates. ==Bridge House==