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Select your affordable Oswestry extension builder
From £86,856
Trusted and professional extension builder in Oswestry. Experienced in all extension buildering work and keeping within budget and on quote. J S CO...
From £86,840
Relax... you have found a reliable extension builder in Oswestry. Your Home Made Ltd is a friendly and reliable company based in Oswestry who consi...
From £86,928
Need to find an Extension Builder near you for all your extension buildering work?
Fistral ltd provides a local, trusted extension builderi...

Building a granny annexe ranges from £86,840 (Your Home Made Ltd based in SY11) to £86,928 (Fistral ltd based in SY10), 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 Oswestry by posting a job with HaMuch. We will send it to extension builders in Oswestry who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Wrexham Maelor | £34 | £261 |
| Granny Annexe near Wrexham | £34 | £263 |
| Granny Annexe near Shrewsbury | £32 | £249 |
| Granny Annexe near Vale Royal | £35 | £251 |
| Granny Annexe near Flintshire | £33 | £224 |
| Granny Annexe near Hawarden | £33 | £228 |
| Granny Annexe near Chester | £32 | £220 |
| Granny Annexe near The Wrekin | £30 | £236 |
| Granny Annexe near Connah's Quay | £33 | £229 |
| Granny Annexe near Telford | £30 | £241 |
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,375

Two storey extension - £87,812

Build a timber frame extension - £25,875

Build a swimming pool - £80,875

Single storey extension - £52,493

Side return extension - £40,090

Install an RSJ - £2,075

Outbuilding - £9,875

Build a Mansard loft conversion - £51,875

Loft conversion - £32,575

Build a kitchen extension - £41,875

Hip to gable loft conversion - £41,875

Granny annexe - £86,875

Garden office - £9,875

Convert a Garage - £15,875

Garage - £18,375

Build a flat roof extension - £21,875

Build a dormer loft conversion - £41,875

Concrete foundations - £6,125

Convert a bungalow loft - £28,875

Convert a basement - £36,090