But nobody bothered to inform the chief of International Airlines Group, BA’s parent company, that his office would fall to the wrecking ball.

“The first I saw of it was when the Airport Commission report came out and I saw a map and I thought, that looks very close to Waterside,” Walsh said. “Then I discovered it actually went right through Waterside.”

Waterside is the headquarters of both BA and IAG, a facility that cost £200m to build and opened in 1998. Through the British version of eminent domain, IAG will receive 25% over the market price for the property. However, rising fees to operate from an expanded Heathrow mean that the company will essentially end up paying to have their headquarters demolished.