Spooky fic

 I've been following some fiction recs from SelenaK and one I particularly liked also led me to this one - https://archiveofourown.org/works/35797606

 

A short, spooky crossover between 'Grand Designs' and the Cthulhu mythos.

 

'Grand Designs' is a TV programme about an architect visiting people who are doing interesting builds on new/restored buildings.  I'm familiar with it, but the story should still work even if you aren't.