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 SW20?
Building a granny annexe ranges from £86,280 (ANGEL BUILDING LTD based in SW19) to £87,240 (Silverain Limited based in SW19), 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 SW20 by posting a job with HaMuch. We will send it to extension builders in SW20 who will be happy to help you.

| Borough in London |
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| Granny Annexe in Merton |
| Granny Annexe in Wimbledon |
| Granny Annexe in New Malden |
| Granny Annexe in Morden |
| Granny Annexe in Worcester Park |
| Granny Annexe in Coombe |
| Granny Annexe in North Cheam |
| Granny Annexe in Merton |
| Granny Annexe in Surbiton |
| Granny Annexe in Tooting |