Scotland’s Edinburgh Airport has commenced construction work on the new extension of its terminal building, part of its £80m investment programme designed to handle growing passenger traffic.

The three-storey extension will be built from the existing gate 12 area spanning the old east end service yard out to the Gogar Burn.

Slated to be completed by summer 2018, the project will include the extension of the South East Pier of the airport in order to accommodate additional boarding gates and seating areas between gates 13 and 14.

Designed to handle an estimated traffic growth of up to 16.5 million passengers in 2021 and beyond, the expansion will provide extended immigration, customs and international reclaim facilities.

"This investment in new facilities will ensure we have the infrastructure needed to handle more passengers and provide them with a positive experience whether arriving or departing."

It will also involve the creation of a new space for the airport’s domestic reclaim hall, allowing the expansion of the baggage hall into the current domestic reclaim area.

The project will also offer six new gates and seating areas, as well as connectivity through a series of fixed links, stair nodes and air bridges.

In addition, the new extended terminal building will host a range of additional retail opportunities, food and beverage options, toilets, lettable property and office space, VIP lounges, and retail storage.

Edinburgh Airport chief executive Gordon Dewar said: “There have been times this summer where we’ve experienced busy periods that have impacted on our service and this investment in new facilities will ensure we have the infrastructure needed to handle more passengers and provide them with a positive experience whether arriving or departing.

“As Scotland’s gateway to the world, it’s vital that we have first-class infrastructure and we will continue to invest in that, creating more jobs, supporting the economy and opening up Scotland to the world.”

The terminal extension is part of Edinburgh Airport’s more than £220m capital investment plan to support passenger growth and maintain operational standards over the next five years.