Stevemercer

Those cracks in the rendering would be expected in a concrete house built 10 or more years ago. They are mainly cosmetic and not of structural concern. The termite next is a bit of a worry. On first glance I would have thought it was probably old and long since disused. However, the blue drainage pipes behind it look fairly new and the nest presumably post-dates this (e.g. the workers installing the pipes would have knocked out any nests at that time to give themselves plenty of working room). If you are interested in the house you will have to investigate more (check internal/external wooden fittings, dig right into the nest to check for evidence of termites and eyeball the surrounding walls and surfaces for termite tunnels (little clay lined tubes). I'd be inclined to get a Thai speaker to point out the nest to the owner and see what he/she says.

Regular mowing before the weeds flower and seed will help favour the grass. Malaysian grass grows in thick making it hard for the weeds to get a foothold, but it needs some shade.