The bottom floor used to serve as the carriage house, but now it is a self contained flat with a bedroom, living room and bathroom.

Source: https://www.dailymail.co.uk/travel/travel_news/article-12332493/Inside-tiny-wedge-shaped-home-Seattle-measures-just-55in-narrowest-end-worth-700k.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

The new film explores a recovering drug addict Emily (Iseman), her fiancé Christian (Dominguez), and a group of their friends opening an organic café, refurbishing an old carriage house in New Orleans' French Quarter.

Source: https://comicbook.com/horror/news/witchboard-remake-cast-confirmed-madison-iseman-jamie-campbell-bower/