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Need an Extension Builder in Mayfield? Strawberry Hill Construction Ltd has been helping local clients (20 mile radius) with their extension builde...
First of all, we began as a small family painter and decorator business covering the Tunbridge Wells area and, following the positive recommendatio...
Brooks & Co Developments, Based in Tunbridge Wells, Kent. Specialising in, Home refurbishments
Ive built Oliver David Construction on the strong values of trust and a personal approach to each and every job, from the design and conception pha...
Trusted and professional extension builder in Mayfield. Experienced in all extension buildering work and keeping within budget and on quote. GRIFFI...
Yeoman Building Contractors are here to help customers who need an Extension Builder in Mayfield. We offer a competitive rate to complete all your ...
LEWIS BUILDING SERVICES is an established and experienced local extension builder in Mayfield. Please contact us for a free, no obligation quote an...
From £87,000
Trusted and professional extension builder in Mayfield. Experienced in all extension buildering work and keeping within budget and on quote. FAIRCL...
From £87,296
Need an Extension Builder in Mayfield? J P ADAMS BUILDERS LTD has been helping local clients (20 mile radius) with their extension buildering jobs ...

Building a granny annexe ranges from £86,888 (Strawberry Hill Construction Ltd based in TN3) to £87,296 (J P ADAMS BUILDERS LTD based in TN3), 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 Mayfield by posting a job with HaMuch. We will send it to extension builders in Mayfield who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Crowborough | £36 | £258 |
| Granny Annexe near Wealden | £35 | £256 |
| Granny Annexe near Tunbridge Wells | £37 | £258 |
| Granny Annexe near Hailsham | £31 | £243 |
| Granny Annexe near Tonbridge | £38 | £254 |
| Granny Annexe near East Grinstead | £37 | £259 |
| Granny Annexe near Haywards Heath | £35 | £256 |
| Granny Annexe near Bexhill-on-Sea | £31 | £243 |
| Granny Annexe near Mid Sussex | £35 | £261 |
| Granny Annexe near Sevenoaks | £38 | £234 |
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 - £17,550

Two storey extension - £88,074

Build a timber frame extension - £26,050

Build a swimming pool - £81,050

Single storey extension - £55,992

Side return extension - £42,058

Install an RSJ - £2,250

Outbuilding - £10,050

Build a Mansard loft conversion - £52,050

Loft conversion - £34,215

Build a kitchen extension - £42,050

Hip to gable loft conversion - £42,050

Granny annexe - £87,050

Garden office - £10,050

Convert a Garage - £16,050

Garage - £18,550

Build a flat roof extension - £22,050

Build a dormer loft conversion - £42,050

Concrete foundations - £6,300

Convert a bungalow loft - £29,050

Convert a basement - £38,058