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 Horsham?
Building a granny annexe ranges from £86,200 (JUST ONE BUILDING SERVICES based in RH11) to £86,944 (JGP Plastering & Brickwork Ltd based in RH5), 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 Horsham by posting a job with HaMuch. We will send it to extension builders in Horsham who will be happy to help you.

| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Horsham | £32 | £226 |
| Granny Annexe near Crawley | £33 | £227 |
| Granny Annexe near Mid Sussex | £30 | £224 |
| Granny Annexe near Horley | £35 | £234 |
| Granny Annexe near Haywards Heath | £30 | £222 |
| Granny Annexe near Burgess Hill | £31 | £208 |
| Granny Annexe near Reigate | £36 | £238 |
| Granny Annexe near Redhill | £36 | £236 |
| Granny Annexe near East Grinstead | £32 | £220 |
| Granny Annexe near Great Bookham | £36 | £235 |