The top floor of Ismabard Kingdom Brunel's railway station in Bristol was laid out as a drawing office for the Great Western Railway's engineers. In 2014 it is in use by start-up technology companies but the fabric of the Grade I listed building has been conserved.
<a href="//commons.wikimedia.org/wiki/User:Geof_Sheppard" title="User:Geof Sheppard">Geof Sheppard</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>