An Edmonton hangar that was a vital link in supplying arms and materials to allied forces in the Second World War has been declared a historic resource.

The city's executive committee voted to have staff write up a potential sale agreement for a major piece of history from the Second World War, Hangar 11 in Blatchford.

If the city has to do a 3-acre land swap to satisfy the Blatchford requirements of NAIT, it'll cost them an additional $10 million in lost revenue to save Hangar 11, executive committee was told Monday.