South Hayling, Hampshire
Two-storey rear extension in South Hayling
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. If you live in South Hayling and want to know what a two-storey rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover South Hayling (PO11) as part of our Hampshire work. In South Hayling, a two-storey rear extension is worth comparing with the cost of moving once stamp duty, agents' and legal fees are counted.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a two-storey rear extension cost in South Hayling?
For South Hayling we work from the South East England rate: £2,020–£3,020 per square metre of new floor, including VAT, standard specification. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m × 5 m footprint, two floors (30 m²) | £60,500–£90,500 |
| 4 m × 6 m footprint, two floors (48 m²) | £97,000–£145,000 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a two-storey rear extension in South Hayling?
Whether your two-storey rear extension in South Hayling needs a planning application depends on its size, your house and any local restrictions.
England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in South Hayling like to extend?
Commuter semis and detached houses make up much of South Hayling, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a two-storey rear extension in South Hayling comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Two-storey rear extensions near South Hayling
Close by, we work in Hayling Island, about 0.5 miles away, and Emsworth, about 4.5 miles away.
- Two-storey rear extension in Hayling Island
- Two-storey rear extension in Emsworth
- Two-storey rear extension in Havant
- Two-storey rear extension in Southsea
- Two-storey rear extension in Portsmouth
Other work in South Hayling:
FAQ
Two-storey rear extension questions in South Hayling
Can you match the brick or stone on my South Hayling house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
Will we need to move out?
Rarely. The first-floor opening is made late in the job and sealed with temporary screens.
Do you handle building control in South Hayling?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
How long does a rear extension take to build in South Hayling?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.