Chris Bond
We are a Small Family run business with over 30 years experience in the building trade, Carpentry is my main trade, with NVQ Level 2.
Rob Butler
Need to find an Extension Builder near you for all your extension buildering work?
Oakstone Developments provides a local, trusted extensio...
Park Building Services Ltd is a trusted extension builder serving customers in Horndean and the surrounding area. Contact us to today to get a comp...
Tao Peskett
Horndean, PO8
TP Developments are here to help customers who need an Extension Builder in Horndean. We offer a competitive rate to complete all your extension bu...
Experienced extension builder ready to quote for your work. Shepperd Developments is the best extension builder in Horndean. No obligation free quo...
Experienced extension builder ready to quote for your work. JM Roofing & Building Services is the best extension builder in Horndean. No obligation...
Relax... you have found a reliable extension builder in Horndean. SLG Mills Building Services is a friendly and reliable company based in Horndean ...
Horndean, PO8
Relax... you have found a reliable extension builder in Horndean. CLARKE BUILDING SERVICES is a friendly and reliable company based in Horndean who...
Steve Harris
Hi my name is Steve harris of hb builders we are based in portchester and have over 40 years of experience in the building trade we would be mor...
Experienced extension builder ready to quote for your work. HOLLYBANK BUILDING is the best extension builder in Horndean. No obligation free quotes...

Building a granny annexe ranges from £86,736 (H B Builders based in PO16) to £88,096 (R&B Property Improvements based in PO9), 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 Horndean by posting a job with HaMuch. We will send it to extension builders in Horndean who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Horndean | £36 | £254 |
| Granny Annexe near Waterlooville | £36 | £250 |
| Granny Annexe near Havant | £35 | £249 |
| Granny Annexe near Havant & Waterloo | £35 | £248 |
| Granny Annexe near Portsmouth | £36 | £250 |
| Granny Annexe near Fareham | £35 | £250 |
| Granny Annexe near Gosport | £35 | £246 |
| Granny Annexe near East Hampshire | £38 | £258 |
| Granny Annexe near Lee-on-the-Solent | £35 | £249 |
| Granny Annexe near Chichester | £34 | £242 |
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 - £17,577

Two storey extension - £88,115

Build a timber frame extension - £26,077

Build a swimming pool - £81,077

Single storey extension - £56,536

Side return extension - £42,364

Install an RSJ - £2,277

Outbuilding - £10,077

Build a Mansard loft conversion - £52,077

Loft conversion - £34,470

Build a kitchen extension - £42,077

Hip to gable loft conversion - £42,077

Granny annexe - £87,077

Garden office - £10,077

Convert a Garage - £16,077

Garage - £18,577

Build a flat roof extension - £22,077

Build a dormer loft conversion - £42,077

Concrete foundations - £6,327

Convert a bungalow loft - £29,077

Convert a basement - £38,364