Hurstpierpoint, West Sussex
Single-storey rear extension in Hurstpierpoint
Ground-floor space across the back of the house, usually for a kitchen, dining or family room. If you live in Hurstpierpoint and want to know what a single-storey rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Hurstpierpoint is covered from our West Sussex round, including BN6, BN45 and RH15. A single-storey rear extension in Hurstpierpoint is mostly built from the garden side, so the house stays usable for most of the job.
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 single-storey rear extension cost in Hurstpierpoint?
A single-storey rear extension in Hurstpierpoint is priced at £2,130–£3,470 per square metre including VAT as a guide, before kitchen fit-out and fees. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £25,500–£41,500 |
| 4 m wide × 5 m deep (20 m²) | £42,500–£69,500 |
| 4 m wide × 6 m deep (24 m²) | £51,000–£83,500 |
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 single-storey rear extension in Hurstpierpoint?
Here is how the rules in England apply to a single-storey rear extension in Hurstpierpoint.
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.
If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.
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 Hurstpierpoint like to extend?
Commuter semis and detached houses make up much of Hurstpierpoint, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a single-storey rear extension in Hurstpierpoint 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.
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.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Single-storey rear extensions near Hurstpierpoint
Neighbouring places we cover include Burgess Hill (2.7 miles) and Portslade (6.5 miles).
- Single-storey rear extension in Burgess Hill
- Single-storey rear extension in Portslade
- Single-storey rear extension in Hove
- Single-storey rear extension in Brighton
- Single-storey rear extension in Shoreham-by-Sea
Other work in Hurstpierpoint:
FAQ
Single-storey rear extension questions in Hurstpierpoint
Do I need planning permission for a rear extension in Hurstpierpoint?
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.
Do you handle building control in Hurstpierpoint?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Do I need a structural engineer?
Yes for the beam over the new opening and usually for the foundations. Their calculations go to building control with the drawings.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
Can you match the brick or stone on my Hurstpierpoint house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.