This small building at Chippenham railway station is widely held to be the site office used when the Great Western Railway was constructed. This is the rear but the other sides are finished in a much smoother stone which matches the station. It was later used as a refreshment room for railway passengers.
<a href="//commons.wikimedia.org/wiki/User:Geof_Sheppard" title="User:Geof Sheppard">Geof Sheppard</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>