Many of the "over and under" houses or "double decker" or “top and bottom” houses in Hebden Bridge are legally referred to as "flying freeholds". Wikipedia describes them as:
Flying freehold is an English legal term to describe a freehold which…
Between Bridge Lanes and Heptonstall Road was a busy community, home to so many, yet passed by thousands each year as they travel up or down this busy road and see only a grassy slope with trees and bushes.
Looking east along part of the A646 road from Todmorden to Hebden Bridge which follows the Calder Valley floor. This was once the main commercial street in the town.