Top Form Construction are here to help customers who need an Extension Builder in SS15. We offer a competitive rate to complete all your extension ...
Ali Alagoz
Propello is an established and experienced local extension builder in SS15. Please contact us for a free, no obligation quote and competitive rate...
Please call to discuss your building needs.
Frederick Head
Over 35 years experience
We are Gas Safe registered
We are Verified
We pride ourselves on great custom...
Sampson Essien
Thistle Bonding Coat: Ideal for use on low-suction backgrounds such as brick or concrete blocks, this product provided a solid foundation, Thi...
Erald Kanani
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Tommy House
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in SS15 and the surrounding area. Contact us to today to get a com...
Experienced extension builder ready to quote for your work. CIA Construction Limited is the best extension builder in SS15. No obligation free quot...
Lee
Hyde Building Ltd are here to help customers who need an Extension Builder in SS15. We offer a competitive rate to complete all your extension buil...
Darren Spencer
Need an Extension Builder in SS15? Ellis & James Builders Limited has been helping local clients (20 mile radius) with their extension buildering j...

Building a granny annexe ranges from £86,880 (Can design and Construction based in Ig11) to £88,584 (Propello based in E17), 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 SS15 by posting a job with HaMuch. We will send it to extension builders in SS15 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Basildon | £39 | £251 |
| Granny Annexe near Billericay | £38 | £248 |
| Granny Annexe near Stanford-le-Hope | £40 | £254 |
| Granny Annexe near Brentwood | £39 | £255 |
| Granny Annexe near Wickford | £39 | £255 |
| Granny Annexe near Thurrock | £41 | £260 |
| Granny Annexe near Thundersley | £38 | £251 |
| Granny Annexe near Chafford Hundred | £41 | £261 |
| Granny Annexe near Rayleigh | £39 | £252 |
| Granny Annexe near Canvey Island | £39 | £256 |
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 - £17,786

Two storey extension - £88,428

Build a timber frame extension - £26,286

Build a swimming pool - £81,286

Single storey extension - £60,712

Side return extension - £44,713

Install an RSJ - £2,486

Outbuilding - £10,286

Build a Mansard loft conversion - £52,286

Loft conversion - £36,428

Build a kitchen extension - £42,286

Hip to gable loft conversion - £42,286

Granny annexe - £87,286

Garden office - £10,286

Convert a Garage - £16,286

Garage - £18,786

Build a flat roof extension - £22,286

Build a dormer loft conversion - £42,286

Concrete foundations - £6,536

Convert a bungalow loft - £29,286

Convert a basement - £40,713