Tom Rob Smith was nominated for the 2018 Emmy Award in the Outstanding Writing for a Limited Series, Movie or Special category for House by the Lake (2018), but lost to William Bridges & Charlie Brooker for USS Callister (2017).
Though it sounds like David's dog is named Prince, the dog's name was Prints.
The apartment building of David Madson is the same building used for New Girl (2011) for the loft the gang shared.
David Madson was about ten years older than actor Cody Fern who plays him. Madson looked his age, thirty-three, perhaps even older (but was handsome nonetheless). In this series, David looks even younger than Andrew. One of the things Andrew was attracted to, according to the book, was that David was older, looked older, had time to become a success, all the things Andrew feed upon.