From £86,960
Mode Projects Ltd is an established and experienced local extension builder in M3. Please contact us for a free, no obligation quote and competitiv...
From £86,896
Trusted and professional extension builder in M3. Experienced in all extension buildering work and keeping within budget and on quote. SK Building ...
From £86,976
bespoke designers for your new media centre. At last, we’re bringing our stunning conversion knowledge to entertainment installations across the ...
From £87,080
Guardian Structural Ltd (Wall Removal Specialists) was created with one goal in mind.... To set the standards. We take pride in being highest rated...
From £86,608
Experienced extension builder ready to quote for your work. MyDestigo is the best extension builder in M3. No obligation free quotes and many happy...
From £86,944
Pillo rooms is a trusted extension builder serving customers in M3 and the surrounding area. Contact us to today to get a competitive quote for ext...
From £86,984
A wholesale shopping is an individual with a huge number of followers related to fashion and has the ability to influence the thought and purchase ...
From £86,800
Our building services company Silkrise Construction have ten years’ experience and have been helping customers in Manchester and the surrounding ...
From £87,072
Avon Piping Limited are here to help customers who need an Extension Builder in M3. We offer a competitive rate to complete all your extension buil...
From £86,880
IKIZ Jewellery is an established and experienced local extension builder in M3. Please contact us for a free, no obligation quote and competitive r...

Building a granny annexe ranges from £86,608 (MyDestigo based in M1) to £87,080 (Guardian Structural Ltd (Wall Removal Specialists) based in M3), 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 M3 by posting a job with HaMuch. We will send it to extension builders in M3 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Manchester | £32 | £236 |
| Granny Annexe near Salford | £32 | £238 |
| Granny Annexe near Old Trafford | £32 | £236 |
| Granny Annexe near Prestwich | £31 | £234 |
| Granny Annexe near Stretford | £32 | £235 |
| Granny Annexe near Swinton | £32 | £235 |
| Granny Annexe near Droylsden | £34 | £237 |
| Granny Annexe near Eccles | £32 | £237 |
| Granny Annexe near Failsworth | £35 | £235 |
| Granny Annexe near Whitefield | £31 | £229 |
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 - £17,420

Two storey extension - £87,880

Build a timber frame extension - £25,920

Build a swimming pool - £80,920

Single storey extension - £53,400

Side return extension - £40,600

Install an RSJ - £2,120

Outbuilding - £9,920

Build a Mansard loft conversion - £51,920

Loft conversion - £33,000

Build a kitchen extension - £41,920

Hip to gable loft conversion - £41,920

Granny annexe - £86,920

Garden office - £9,920

Convert a Garage - £15,920

Garage - £18,420

Build a flat roof extension - £21,920

Build a dormer loft conversion - £41,920

Concrete foundations - £6,170

Convert a bungalow loft - £28,920

Convert a basement - £36,600