A granny annexe is the ideal solution for offering a young family member their own space in your home while they save up for their own house, or to help an older relative have some independence while keeping them at a safe distance. But how much do they cost to build in Test Valley?

Building a granny annexe ranges from £85,800 (Floortrak Limited based in SO51) to £87,000 (Feltham Group Services Limited based in SP5), but these are just estimates that can help give you an idea of who will be better value in your area.

The best thing to do is to get quotes to build a granny annexe in Test Valley by posting a job with HaMuch. We will send it to extension builders in Test Valley who will be happy to help you.