PURLEY War Memorial Hospital will open to the public next week after a £1.1 million revamp.
The finished building will allow for 90,000 outpatient appointments a year and will deal with 80 per cent of the south of the borough's healthcare needs – up from 40 per cent.
The new building will open in phases with the physiotherapy and diabetic retinopathy clinics opening on Monday. Other services will launch in stages through August.
The redevelopment has made the building a base for local GPs.
Since October, the only service on the site has been the nurse-led Urgent Care Centre (UCC) for minor injuries and conditions.
All the out-patient clinics, therapy services and diagnostic services were moved to other locations during building.
The new development has created new out-patient and diagnostic areas and brought disused wards back into use for clinics and GP practice.
However, residents are still concerned about a shortage of parking. Just 40 spaces are included in the plans, despite an estimated 3,000 visitors a week.
The spaces are reserved for patients and ambulances – staff will have to park elsewhere.
Although the council and the NHS are in talks to reserve part of the multi-storey car park for staff, a decision is yet to be made.