st. ebba's was the third hospital to be built within the epsom cluster, opening in 1904. the colony was designed for the london county council by william c. clifford smith and constructed at a cost of £98,000 to house a total of 326 epileptic patients, 60 of whom were female. the hospital consisted of eight free-standing villas housing 38 patients each centered on a central block containing administrative offices, a recreation hall and other hospital services as well as a 32-bed admission ward for female patients.