Wibbly wobbly

Annoyingly my phone camera automatically straightens the line of houses in this street. The houses are c.1800, and those at the end of this terrace have really settled back on their haunches. The doors and windows are replacements, and have been fitted on the vertical, when when you are close by, really shows what an angle the front of the house it at now. Still, they are still standing, being used. How many houses currently being built will be here in 217 years?