Goodson Associates completed a three storey, £15.9m extension to, and a £11.9m fit out of the main terminal building at Edinburgh Airport in 2018.

The project primarily involved the design and construction of a three-storey terminal building containing departure lounges, offices, baggage retrieval areas, stock rooms and plant rooms. In addition to the terminal building three stair nodes were to be constructed local to the aircraft stands and a satellite departure lounge extended. These five buildings were connected by raised passenger bridges.

The development site was located within an existing service yard to the east edge of the existing main terminal building. The site was constrained on two sides by existing buildings and one by a water course. The design incorporated a concrete bund wall adjacent to the water course to maintain the flood strategy on the airport site. The design allowed the new building to extend to the boundary of the site maximising the floor area at 1st and 2nd floor levels whilst maintaining access roads for airport vehicles within the building footprint at ground floor.

The building structure comprises of a 3-storey braced steel framed building with composite concrete slabs and structural roof deck. A 7m by 10m column grid creates a flexible open plan space across all levels to allow the building to be adapted to meet changing retail environments into the future. The building is founded on pile caps supported on precast driven piles and cantilevering ground beams were used to allow new columns to be positioned as close to the site boundary as possible. The new building physically ties into the existing terminal building at all levels.