Build additional living space on your property in PO38

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 PO38?

Granny annexe cost in PO38 - Sort by rates or availability

SBS Building Services

From £87,144

(last active 28/09/26)

We are a small family run business with over 20 years experience in brickwork, bathroom/kitchen fitting, roofing, landscaping, fencing, tiling and ...

A W PAVING LTD

From £87,192

(last active 04/09/26)

Trusted and professional extension builder in PO38. Experienced in all extension buildering work and keeping within budget and on quote. A W PAVING...

P Pattison

From £86,824

(last active 28/08/26)

Self employed in building industry for the past 20 years.

local reliable.

Devscapes

From £87,080

(last active 22/08/26)

Devscapes is an established extension buildering business in PO38. We come highly recommended and provide competitive quotes for your work.

G A Headlam

From £86,344

(last active 17/08/26)

I have been in these trades for over 30 years.

3Lance Developments Limited

From £87,152

(last active 23/07/26)

Relax... you have found a reliable extension builder in PO38. 3Lance Developments Limited is a friendly and reliable company based in PO38 who cons...

O NEILL CONSTRUCTION LTD

From £86,976

(last active 22/07/26)

O NEILL CONSTRUCTION LTD is an established extension buildering business in PO38. We come highly recommended and provide competitive quotes for you...

Rowan Services

From £87,200

(last active 22/07/26)

Trusted and professional extension builder in PO38. Experienced in all extension buildering work and keeping within budget and on quote. Rowan Serv...

Island Renovations

From £86,808

(last active 22/07/26)

Need to find an Extension Builder near you for all your extension buildering work?

Island Renovations provides a local, trusted extension b...

Shepperd Developments

From £86,968

(last active 16/07/26)

Experienced extension builder ready to quote for your work. Shepperd Developments is the best extension builder in PO38. No obligation free quotes ...

Granny Annexe Cost in PO38

Estimates for granny annexe near PO38

Building a granny annexe ranges from £86,344 (G A Headlam based in PO38) to £87,200 (Rowan Services based in PO40), 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 PO38 by posting a job with HaMuch. We will send it to extension builders in PO38 who will be happy to help you.


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Granny Annexe near Isle of Wight£34£246
Granny Annexe near Ryde£34£255
Granny Annexe near Lee-on-the-Solent£35£249
Granny Annexe near Gosport£35£246
Granny Annexe near Portsmouth£36£250
Granny Annexe near Fareham£35£250
Granny Annexe near Locks Heath£33£240
Granny Annexe near Havant & Waterloo£35£248
Granny Annexe near Havant£35£249
Granny Annexe near Waterlooville£36£250

Estimates for common extension builder jobs in PO38;

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.

More extensions & conversions cost guides...