The outside of the house in this episode and the outside of the house in "Hart to Hart" are one and the same right down to the white fence along the driveway.
In Scott Skelton's and Jim Benson's book, 'Rod Serling's Night Gallery: An After-hours Tour', "The House" directed by John Astin is located in Mandeville Canyon.
In the "The House," the real estate agent says that the house is being sold cheap by the owners because they're English. The inquirer, a San Francisco native, is played by an English actor.
Author Andre Maurois suggests that the narrator, driven from her body during a fevered illness, haunted the house as an astral spectre. Serling's script takes it to a different level, and Latimer "meets" her ghostly self.
The first car to appear in the film "The House" is a 1970 Chrysler Newport Convertible.