The glass and steel structure, designed by Bennetts Associates, will house a new ticket hall on Manor Road, to the northwest of the existing station building.
The plans include platform extensions so the station can accommodate the 200-metre long Crossrail trains and a new footbridge.
The improvement works will be carried out by Network Rail. From the end of 2017 the station will be run by Transport for London.
Crossrail surface director Matthew White said: “Crossrail will provide a step change in public transport for people in West Ealing – new trains, quicker journeys and a brand new station fit for the 21st century. Our proposals are for a bright, spacious, elegant new ticket hall that, along with the other improvements, will transform people’s experience of using the station.”
Bennetts Associates director David Laing added: “The building will provide a new, fully accessible station on Manor Road incorporating clear, step-free access routes to all platforms. Its double height glazed concourse and canopied frontage will ensure the station is clearly legible within the surrounding townscape, while its modern ticket hall and distinctive entrance will make it recognisable as one of the family of new Crossrail stations designed by Bennetts Associates through west London.”
Ealing Council recently approved plans, also designed by Bennetts Associates for Crossrail, to overhaul and expand Southall station.