Emsworth house extensions
More space without moving: we plan and build extensions across Emsworth, with one team for the drawings, the council and the build.
- Postcode districtsPO10
- Price regionSouth East England (×1.12)
- Planning rulesEngland
- Site visitFree, no obligation
Which extension suits a Emsworth home?
The South East has a broad mix of 1930s semis, post-war estates, newer developments and period cottages, and many houses have enough garden for a generous rear extension.
Start by comparing orangery extensions, double-storey extensions and single-storey rear extensions: between them they cover most of the layouts we see requested for houses like these.
Emsworth and surrounding towns
Postcode districts we cover around Emsworth include PO10. Neighbouring towns we cover include Chichester (7 miles), Bognor Regis (12 miles), Littlehampton (17 miles), Worthing (25 miles), Lancing (27 miles). Just over the Hampshire border, Havant is about 2 miles away.
Popular extension prices in Emsworth
We publish guide prices so you can budget before anyone visits. For Emsworth they are adjusted by ×1.12, the factor we use across South East England.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Single-storey rear extensions | 20 m² | £45,500 – £58,500 |
| Kitchen extensions | 20 m² | £47,000 – £59,500 |
| Side return extensions | 11 m² | £29,500 – £37,000 |
| Conservatory replacement extensions | 14 m² | £33,500 – £43,500 |
| Wraparound extensions | 25 m² | £64,000 – £81,500 |
| Double-storey extensions | 32 m² | £64,500 – £84,500 |
Planning and building control in Emsworth
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In England a single-storey side extension can be permitted development if it is no more than 4 m high and no wider than half the width of the original house. Two-storey side extensions, and any side extension on designated land such as a conservation area, need a householder planning application.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
All extension types we build in Emsworth
- Porch extensions · from £4,450
- Timber frame extensions · from £23,500
- Pitched roof extensions · from £24,500
- Home office extensions · from £17,500
- Double-storey extensions · from £42,500
- Conservatory replacement extensions · from £22,000
- Side return extensions · from £20,000
- Orangery extensions · from £33,500
- Bungalow extensions · from £29,000
- Side extensions · from £24,500
- Planning permission for extensions · from £350
- Annexe extensions · from £61,500
- Glass box extensions · from £33,500
- Bedroom extensions · from £29,000
- Extensions over a garage · from £26,500
- Flat roof extensions · from £23,500
- Extension plans and drawings · from £1,300
- Kitchen extensions · from £30,000
- Single-storey rear extensions · from £23,500
- Wraparound extensions · from £40,000
- Building regulations for extensions · from £1,000
- Utility and boot room extensions · from £15,500
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions about extensions in Emsworth
How much does an extension cost in Emsworth?
Using our South East England factor (×1.12), a standard-spec single-storey extension of 20 m² is a guide £45,500 to £58,500 including VAT, and a 32 m² two-storey extension £64,500 to £84,500. Your written price follows the survey.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Emsworth, and the guide-price tool gives a range for your own size and finish in about a minute.
How long does an extension take in Emsworth?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Do I need planning permission for an extension in Emsworth?
Not always. It depends on the size, position and your property's history. Many single-storey rear extensions in England are permitted development or can use prior approval.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
Book a free site visit in Emsworth
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.