Cost to build a granny annexe in WD18

Granny Annexe Cost in WD18

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 WD18?

Building a granny annexe ranges from £86,840 (Swan Windows & Son Limited based in WD3) to £89,000 (Design & Build Builders Ltd based in WD18), 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 WD18 by posting a job with HaMuch. We will send it to extension builders in WD18 who will be happy to help you.

How much does a granny annexe cost to build in the UK?
What is a granny annexe?
How big can a granny annexe be?
How to get planning permission for a granny annexe
What is the granny annexe tax loophole?
Does an annexe increase council tax?
Do you need planning permission to convert a garage into a granny flat?
Can you claim VAT back on a granny annexe?
Can I let out my granny annexe?
Does an annexe increase property value?
Can a granny annexe be sold separately?
Do you have to pay stamp duty on an annexe?

	Job	Estimate
	Underpinning a house	£17,495
	Build a two storey extension	£87,992
	Build a timber frame extension	£25,995
	Install a swimming pool	£80,995
	Cost to build a single storey extension	£54,898
	Cost to build a side return extension	£41,442
	Install an RSJ	£2,195
	Build an outbuilding	£9,995
	Build a mansard loft conversion	£51,995
	Cost of a loft conversion	£33,702
	Build a kitchen extension	£41,995
	Build a hip to gable loft conversion	£41,995
	Build a granny annexe	£86,995
	Build a garden office	£9,995
	Convert a garage	£15,995
	Build a new garage	£18,495
	Build a flat roof extension	£21,995
	Build a dormer loft conversion	£41,995
	Lay a concrete foundation	£6,245
	Convert a bungalow loft	£28,995
	Basement conversion cost	£37,442

Business name	Granny annexe cost
Frame Brickwork, West Watford, WD18	£86,896
Design & Build Builders Ltd, Watford, WD18	£89,000
A&T Building, Watford, WD18	£86,888
Architectural Brickwork Services, Hertfordshire, WD19	£86,968
1st Choice Builders UK, West Watford, WD18	£86,896
Primrose Projects, WATFORD, Hertfordshire, WD17	£86,864
AV Home Improvements, Herts, WD19	£86,968
MAINCORE BUILDING SERVICES LTD, Rickmansworth, WD3	£86,888
Tonybuild, Watford, WD17	£86,896
D ROSE BUILDING SERVICES, Rickmansworth, WD3	£86,896
T N Roofing, Bushey Hall Drive, B, WD23	£86,888
S2M VENTURES LLP, West Lothian, HA6	£86,968
Progressive Design London, Watford, Hertfordshire, WD24	£86,856
Conversion Property and Electrical Services, Hertfordshire, WD24	£86,968
C S C BUILDINGS LTD, Oxhey, WD19	£86,888
Cannon Build Solutions, Hartsbourne House, Watford, Hertfordshire, WD19	£86,872
Project Squared Construction Ltd, Hertfordshire, ha6	£86,968
Ideal Place Construction Ltd, Watford, WD19	£87,000
Sharp Building Ltd, Watford, WD19	£86,896
Timeless Interiors, Hertfordshire, WD3	£86,968
Cube Design, Herefordshire, WD3	£86,968
Crown Building, Unit: 324-B, Wenta Centre, Colne Way, Watford, Hertfordshire, WD24	£86,864
Daniel London, London, Greater London, HA6	£86,872
Swan Windows & Son Limited, 88a High St, Rickmansworth, Hertfordshir, WD3	£86,840
BALECOURT BUILDERS LIMITED, Rickmansworth, WD3	£86,896

Build additional living space on your property in WD18

Granny Annexe Cost in WD18

Estimates for common extension builder jobs in WD18;

Rates for other WD18 trades

Granny annexe cost in WD18

Get extension builder rates instantly