9 Pool Valley, Brighton, City of Brighton and Hove, England.  A Grade II*-listed building of 1794 faced with black glazed <a href="https://en.wikipedia.org/wiki/mathematical_tiles" class="extiw" title="w:mathematical tiles">mathematical tiles</a>.
<a href="//commons.wikimedia.org/wiki/User:Hassocks5489" title="User:Hassocks5489">Hassocks5489</a>
<span class="int-own-work" lang="en">Own work</span>