Beyond that is the new housing that replaced the hospital. The road names off St Lawrence Way do apparently remember people associated with the hospital: Deacon, Straw, Danvers, Gwynne, Bunce, Drew, Pye, Marcuse. Joey Deacon was very well known.
Beyond the houses the land dips away to an open area, and a tree covered walk in the valley - Green Lane, and beyond that is Surrey National Golf Club.
Old postcards (like this one) show how the front entrance looked when the building was big enough to house 1500 residents from the Metropolitan area of London, and when it was a large employer of people from Caterham.
What has been kept is the screen of high trees, the fence and gate posts.
Beyond that there was the male side and the female side with the utility corridor connecting them, off which came the kitchen, the pharmacy, the laundry, the swimming pool, recreation hall, tailors shop, dentist, and everything needed to keep a hospital community going.
It was a large hospital built to keep the cost per patient down and probably had no great architectural merit. The grounds were extensive. So it was bulldozed rather than converted, when the era of Victorian Mental Hospitals ended in the 1990s. The residents had been rehoused in smaller units by the 1990s Lifecare NHS Trust. Much better for them than living in groups of up to 40.