Barnet Hospital is creating hundreds of new parking spaces on abandoned land.
The hospital, used by Borehamwood residents, is preparing to receive extra visitors when two units at Chase Farm Hospital, in The Ridgeway, Enfield, are downgraded.
The accident and emergency department and the maternity service at the Enfield hospital are due to close, which means more patients will be relying on Barnet Hospital, in Wellhouse Lane.
The closure is part of the plan, approved by Health Secretary Andrew Lansley, to shake-up hospital services with the aim of improvement and tackling inequality of health care.
The Barnet and Chase Farm Hospitals NHS Trust has submitted its new parking proposal to Barnet Council and is expecting a decision at a planning meeting on September 5.
In a statement, the trust said: “We are confident that this will be a more than adequate way to cope with an increase in patients, visitors and staff.”