The Grade-I listed Ditherington Flax Mill was the world's first iron-framed building and is considered one of the most important on the English Heritage At Risk register.

BBC: Ditherington Flax Mill in ?11.6m restoration bid

English Heritage said the Grade I-listed Ditherington Flax Mill in Shrewsbury, built in 1797, was the world's first iron-framed building.

BBC: Ditherington Flax Mill in lottery funding bid

Built in 1797, the Ditherington Flax Mill was the world's first iron-framed building and has been derelict for more than 20 years.

BBC: Ditherington Flax Mill site designs viewed