Under the proposals, the A&E and critical care departments will be extended, while the fracture clinic will move into a new purpose-built department.
Planning permission is currently being sought from Liverpool City Council for the project. If approved, it will take just over two years to complete.
Catherine Beardshaw, chief executive of Aintree University Hospital, said: “We are about to embark on a very exciting project that will ensure we can provide the best quality care to patients in modern, fit-for-purpose facilities. The result will be a much more patient-friendly environment.”
Taylor Young has carried out the architectural design work on the scheme and will be working with BAM Construction, which has been appointed to deliver the project on site. The project will be self-funded by the Aintree University Hospital’s trust.