Or the Akrotiri Officers' Club whose estimate came in so low that it was decided to proceed with the whole project rather than piecemeal as funds became available.
And 'lo the contract went out to a local builder who stupidly said "Isn't the entrance lobby a bit small at only 3 feet?"
Yes, wonders and blunders had produced plans numbered as metres but specified in feet. And there the project sank without trace.