crack subsidence

I am buying semi detached house. House is rendered and shows some cracks at the left rear and side wall. I am not expert so i could not say it is subsidence or not but one of the vertical cracks from side wall is both external and internal at the same places.

Hi All, We moved into our first house 2 years ago, and I've only just noticed these cracks in the mortar above our lower-floor window. They might have been there all along, but nothing was flagged on the homebuyers report when buying the property. I was just wondering if this was a sign of...