Cost to build a granny annexe in Portland

Build additional living space on your property in Portland

A granny annexe is the ideal solution for offering a young family member their own space in your home while they save up for their own house, or to help an older relative have some independence while keeping them at a safe distance. But how much do they cost to build in Portland? To see prices and availability for your job click green button.

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Granny Annexe Cost in Portland

Estimates for granny annexe near Portland

Building a granny annexe ranges from £86,472 (WEYMOUTH ROOFING CO. based in DT4) to £87,536 (Roofix and Build Ltd based in DT4), 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 Portland by posting a job with HaMuch. We will send it to extension builders in Portland who will be happy to help you.

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Location in UK	Hourly Rate	Daily Rate
Granny Annexe near Weymouth	£33	£260
Granny Annexe near Dorchester	£30	£230
Granny Annexe near Poole	£38	£250
Granny Annexe near Bournemouth	£38	£257
Granny Annexe near Yeovil	£34	£294

Estimates for common extension builder jobs in Portland;

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

Underpin a building - £17,606

Two storey extension

Two storey extension - £88,160

Build a timber frame extension

Build a timber frame extension - £26,106

Build a swimming pool

Build a swimming pool - £81,106

Single storey extension

Single storey extension - £57,128

Side return extension

Side return extension - £42,697

Install an RSJ

Install an RSJ - £2,306

Outbuilding

Outbuilding - £10,106

Build a Mansard loft conversion

Build a Mansard loft conversion - £52,106

Loft conversion

Loft conversion - £34,748

Build a kitchen extension

Build a kitchen extension - £42,106

Hip to gable loft conversion

Hip to gable loft conversion - £42,106

Granny annexe

Granny annexe - £87,106

Garden office

Garden office - £10,106

Convert a Garage

Convert a Garage - £16,106

Garage

Garage - £18,606

Build a flat roof extension

Build a flat roof extension - £22,106

Build a dormer loft conversion

Build a dormer loft conversion - £42,106

Concrete foundations

Concrete foundations - £6,356

Convert a bungalow loft

Convert a bungalow loft - £29,106

Convert a basement

Convert a basement - £38,697

More extensions & conversions cost guides...