Chichester, West Sussex
Bungalow rear extension in Chichester
Single-storey rear extensions that keep everything on one level. If you live in Chichester 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.
Chichester sits in West Sussex, with postcode districts including PO19. For Chichester bungalows we design the roof first, because the low eaves decide the height of the new room.
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 Chichester?
In Chichester, our guide for a bungalow rear extension is £2,070–£3,360 per square metre including VAT for a 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 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a bungalow rear extension in Chichester?
The planning route for a bungalow rear extension in Chichester is set by England's householder rules and your council.
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.
England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.
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 Chichester like to extend?
Commuter semis and detached houses make up much of Chichester, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a bungalow rear extension in Chichester 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.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
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.
Bungalow rear extensions near Chichester
We also build rear extensions for bungalows in nearby Bognor Regis (5.8 miles) and Barnham (6.2 miles).
- Bungalow rear extension in Bognor Regis
- Bungalow rear extension in Barnham
- Bungalow rear extension in Emsworth
- Bungalow rear extension in Selsey
- Bungalow rear extension in Hayling Island
Other work in Chichester:
FAQ
Bungalow rear extension questions in Chichester
What postcode areas do you cover around Chichester?
Including PO19, and the surrounding West Sussex area.
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.
Is a bungalow extension cheaper?
The rates are similar per square metre; roof work can add a little.
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.
Do you handle building control in Chichester?
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 Chichester?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.