Hampden Park itself is a large pleasant space with a fair sized lake.

There is a park cafe called Lakeside Cafe, a children's playground, outdoor tennis courts, playing fields and plenty of routes for joggers and strollers, as well as a large area of sports fields.

Prior to 1901 the land now called Hampden Park was part of the Ratton Estate owned by Lord Willingdon.

Ratton is mentioned in the Domesday survey of 1087 and for a long time the woodland and lake had been a decoy attracting wildfowl for the estate kitchens.

Edward Maufe's Perpendicular Gothic Revival building of 1952–54 replaced a church of 1908 which had been destroyed by a bomb in 1940.