I unearthed a great ratty paperback a couple of months back. "The Site" by Melisand March had an era-appropriate (1989) metallic-embossed cover of a fanged and bloody face bursting out of a glass and steel building. I grabbed it because I do so love a modern haunting and was in the mood for some 80s horror.
It was very well-written - complex, with deep characterisation. Obviously her first book but the writing of it sprang from a series of coincidences and a natural passion for buildings which demanded the story be recorded.
She's disappeared from the world of writing (and perhaps the world in general)...but the buildings were real. Here's the site itself - where terrible things occur - 277 Park Avenue, New York City.