Portswood, Hampshire
Two-storey rear extension in Portswood
Thinking about a two-storey rear extension in Portswood? A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
We cover Portswood (SO14, SO17 and SO18) as part of our Hampshire work. Two-storey rear extensions suit semi-detached houses in Portswood best, where the extra bedroom matters as much as the bigger kitchen.
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 Portswood?
Guide prices for a two-storey rear extension in Portswood start from our South East England rate of £2,020–£3,020 per square metre, including VAT. 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 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a two-storey rear extension in Portswood?
Here is how the rules in England apply to a two-storey rear extension in Portswood.
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. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Portswood like to extend?
Around Portswood the housing ranges from inter-war semis to 1960s and 1970s estates with good-sized gardens. Many of the newer estates had permitted development rights removed by condition, so we check the planning history before anything is drawn.
How a two-storey rear extension in Portswood comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Two-storey rear extensions near Portswood
We also build two-storey rear extensions in nearby Southampton (1.7 miles) and Woolston (2.4 miles).
- Two-storey rear extension in Southampton
- Two-storey rear extension in Woolston
- Two-storey rear extension in Eastleigh
- Two-storey rear extension in Bishopstoke
- Two-storey rear extension in Hedge End
Other work in Portswood:
FAQ
Two-storey rear extension questions in Portswood
Can you match the brick or stone on my Portswood house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
What postcode areas do you cover around Portswood?
Including SO14, SO17 and SO18, and the surrounding Hampshire area.
Will we need to move out?
Rarely. The first-floor opening is made late in the job and sealed with temporary screens.
How much does a two-storey rear extension cost in Portswood?
As a guide, £2,020–£3,020 per square metre including VAT for a standard specification. For example, 3 m × 5 m footprint, two floors (30 m²): about £60,500–£90,500 at that rate. Your written price follows the survey.
Do I need planning permission for a rear extension in Portswood?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.
Is the site visit in Portswood free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.