London City Airport (LCY) has begun a £16m development programme to expand its Western Pier by nearly 84%.
The pier houses 70% of the airport's departure gates.
The upgrade will result in a new Western Pier with bright, open-plan space featuring modern seating, electronic boarding gates, workspaces, quiet areas and charging points.
Once reconfigured, the pier will have 1,760m² of extra space, which can be utilised for setting up new retail and food and beverage outlets, and to accommodate 600 additional seats.
London City Airport CEO Declan Collier said: "We are creating more space, more seating, and more comfort for our passengers.
"People choose LCY for its unrivalled location so close to central London, the speed of check-in and arrivals, and for the quality of the experience here.
"Without development, that experience was at risk of being compromised but this multi-million pound investment will make the new Western Pier a cutting-edge extension of the departure lounge, with a business-class feel throughout, that is accessible to all."
Work on the new pier has already started and is expected to be completed in 2016.
As the pier expansion work is being undertaken under 'permitted development', planning permission is not required for the project.
The Western Pier project does not form part of the City Airport Development Programme.
Constructed in 1987, LYC handles more than three million passengers annually.
In February, LCY received permission to go ahead with a £200m investment to increase runway capacity, allow more take-offs and landings at peak times and accommodate the advanced quieter and more fuel efficient aircraft.
With the upgrade, the airport will be able to operate up to 111,000 flights annually, against the 70,000.
Image: An artistic impression of the refurbished Western Pier at the London City Airport in the UK. Photo: courtesy of London City Airport Ltd.