Bognor Regis, West Sussex
Bungalow rear extension in Bognor Regis
Single-storey rear extensions that keep everything on one level. If you live in Bognor Regis and want to know what a bungalow rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Bognor Regis is covered from our West Sussex round, including PO21 and PO22. For bungalows in West Sussex, a rear extension is the usual way to add space without adding stairs.
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 bungalow rear extension cost in Bognor Regis?
For Bognor Regis we work from the South East England rate: £2,070–£3,360 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 wide × 4 m deep (12 m²) | £25,000–£40,500 |
| 4 m wide × 6 m deep (24 m²) | £49,500–£80,500 |
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 bungalow rear extension in Bognor Regis?
Planning for a bungalow rear extension in Bognor Regis follows the English householder rules.
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. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Bognor Regis like to extend?
Commuter semis and detached houses make up much of Bognor Regis, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a bungalow rear extension in Bognor Regis 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.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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.
Bungalow rear extensions near Bognor Regis
We also build rear extensions for bungalows in nearby Barnham (3.9 miles) and Chichester (5.8 miles).
- Bungalow rear extension in Barnham
- Bungalow rear extension in Chichester
- Bungalow rear extension in Selsey
- Bungalow rear extension in Littlehampton
- Bungalow rear extension in Rustington
Other work in Bognor Regis:
FAQ
Bungalow rear extension questions in Bognor Regis
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.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
How deep can I extend?
The same limits as a house: 3 or 4 metres in England, more with prior approval.
How long does a rear extension take to build in Bognor Regis?
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.
Is the site visit in Bognor Regis free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.