From £87,400
Helenski Group Ltd specialises in complete bathroom renovations, luxury tiling, kitchens and full property refurbishments. We have over 20 years of...
From £87,152
Relax... you have found a reliable extension builder in Mildenhall. CROWNBUILD is a friendly and reliable company based in Mildenhall who consider ...
From £87,272
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £87,088
Eric Handyman- builder is an established and experienced local extension builder in Mildenhall. Please contact us for a free, no obligation quote a...
From £86,568
We are a family business providing a one stop shop to meet all your building and renervation needs
From £87,072
Relax... you have found a reliable extension builder in Mildenhall. D Stebbings is a friendly and reliable company based in Mildenhall who consider...
From £87,224
Small extension, to full turn key new house builds, listed building works, renovations. We provide a full comprehensive quotation for all your need...
From £87,016
Need to find an Extension Builder near you for all your extension buildering work?
A Sindall Building provides a local, trusted extension b...
From £87,104
Relax... you have found a reliable extension builder in Mildenhall. Pinnacle Construction is a friendly and reliable company based in Mildenhall wh...
From £87,240
Relax... you have found a reliable extension builder in Mildenhall. Fantastic Finishing is a friendly and reliable company based in Mildenhall who ...

Building a granny annexe ranges from £86,568 (Sean W Scott General Builder based in IP28) to £87,400 (Helenski Group Ltd based in IP24), 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 Mildenhall by posting a job with HaMuch. We will send it to extension builders in Mildenhall who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Bury St Edmunds | £34 | £251 |
| Granny Annexe near Ely | £40 | £279 |
| Granny Annexe near Thetford | £42 | £277 |
| Granny Annexe near Haverhill | £37 | £260 |
| Granny Annexe near Cambridge | £38 | £271 |
| Granny Annexe near Sudbury | £34 | £229 |
| Granny Annexe near Breckland | £28 | £248 |
| Granny Annexe near Stowmarket | £30 | £221 |
| Granny Annexe near South Cambridgeshire | £43 | £305 |
| Granny Annexe near Dereham | £25 | £203 |
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 - £17,614

Two storey extension - £88,170

Build a timber frame extension - £26,114

Build a swimming pool - £81,114

Single storey extension - £57,272

Side return extension - £42,778

Install an RSJ - £2,314

Outbuilding - £10,114

Build a Mansard loft conversion - £52,114

Loft conversion - £34,815

Build a kitchen extension - £42,114

Hip to gable loft conversion - £42,114

Granny annexe - £87,114

Garden office - £10,114

Convert a Garage - £16,114

Garage - £18,614

Build a flat roof extension - £22,114

Build a dormer loft conversion - £42,114

Concrete foundations - £6,364

Convert a bungalow loft - £29,114

Convert a basement - £38,778