The hospital has its origins in a Poor Law orphanage established in 1886. The oldest part of the hospital, the "clock tower" building, was formerly the main part of the orphanage. Middlesex County Council started to admit elderly people to the facility in 1930 and it had developed into a care home for elderly people by 1938. The facility joined the National Health Service in 1948 and a new surgical block, known the Highlands Wing in memory of the localHighlands Hospital which had recently closed, was opened in 1995. In 1999 the hospital became part of the Barnet and Chase Farm NHS Hospitals Trust. A public consultation was carried out during 2007 on reorganising services between Chase Farm Hospital and Barnet Hospital. One option would have transformed Chase Farm to a 'community hospital' with inpatient and major emergency care transferred to Barnet. The other option concentrated on planned care at Chase Farm, with maternity and other services concentrated at Barnet. The proposals were intended to maximise clinical effectiveness given limited human and financial resources; however, they also predicated a substantial investment in community health provision. The local NHS primary care trusts determined at the end of this consultation to proceed with 'Option 2'. Two candidates, Catherine Wilkinson and Kieran McGregor, for the "Save Chase Farm" movement were elected to the local council in the local elections of May 2006. They however lost their seats in the 2010 election. Following dismissal of a request for a judicial review, the maternity unit closed in November 2013 and the Accident and Emergency Department closed on 9 December 2013 following the determination of the Barnet, Enfield and Haringey strategy. Since 2014 the hospital has been part of the Royal Free London NHS Foundation Trust. The Trust discovered a large backlog of patients waiting for elective treatment that year. By April 2015 the trust had reviewed 7,174 patients who have now received treatment. The review concluded that one patient "may have experienced serious harm" and 39 patients had "potentially" suffered "moderate harm", and 68 patients may have suffered "low harm". 1,541 patients were sent to private providers since July 2014, predominately for endoscopy and ear, nose and throat treatments. A redevelopment scheme for the site, financed in part by the Government and in part from the proceeds of surplus land, involves the demolition of most of the existing buildings, except the Highlands Wing and part of the Clock Tower building, and the construction of modern facilities. The works are expected to be complete in summer 2018.
Facilities
Apart from the acute hospital, the grounds also contain a general adult mental health unit managed by Barnet, Enfield and Haringey Mental Health Trust, Chase Village, Kings Oak private hospital, a medium-secure psychiatric unit, and services by Enfield Primary Care NHS Trust. The site contains the North London Forensic Service, the forensic psychiatric service covering most of north London.
Notable births
Notable births at the hospital include Amy Winehouse.