Granny Annexe Cost in SY18
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 SY18?
Building a granny annexe ranges from £86280 (SDW CONSTRUCTION LTD based in SY15) to £86520 (SP Coupland Ltd based in SY25), 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 SY18 by posting a job with HaMuch. We will send it to extension builders in SY18 who will be happy to help you.
Estimates for common extension builder jobs in SY18;
| Job | Estimate |
| Underpinning a house | £16913 |
| Build a two storey extension | £87119 |
| Build a timber frame extension | £25413 |
| Install a swimming pool | £80413 |
| Cost to build a single storey extension | £38256 |
| Cost to build a side return extension | £30894 |
| Install an RSJ | £1613 |
| Build an outbuilding | £9413 |
| Build a mansard loft conversion | £51413 |
| Cost of a loft conversion | £28245 |
| Build a kitchen extension | £41413 |
| Build a hip to gable loft conversion | £41413 |
| Build a granny annexe | £86413 |
| Build a garden office | £9413 |
| Convert a garage | £15413 |
| Build a new garage | £17913 |
| Build a flat roof extension | £21413 |
| Build a dormer loft conversion | £41413 |
| Lay a concrete foundation | £5663 |
| Convert a bungalow loft | £28413 |
| Basement conversion cost | £30894 |
Rates for other SY18 trades
Extension Builders in SY18
| Business name | Granny annexe cost |
|---|---|
| EVABUILD LIMITED, , SY16 | £86360 |
| SDW CONSTRUCTION LTD, , SY15 | £86280 |
| Cherry Build Limited, Llandrindod Wells, LD1 | £86464 |
| DRAGON CONSTRUCTION T/A, , SY25 | £86440 |
| SP Coupland Ltd, Sir Ceredigion, SY25 | £86520 |