Home extensions in Prescot
We design and build house extensions for homes in Prescot and the surrounding Merseyside area, with guide prices adjusted for the region.
- Postcode districtsL28, L34, L35, L36, WA10
- Price regionNorth West England (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation
Planning and building control in Prescot
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.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
Where we work near Prescot
Our survey diary covers Prescot, including L28, L34, L35, L36, WA10. The same team covers Huyton (2 miles), St Helens (3 miles), Halewood (5 miles), Kirkby (5 miles), Liverpool (7 miles), all within easy reach. For homes towards Cheshire, Widnes is around 5 miles away.
Guide prices for Prescot
Every figure below is a guide for Prescot, adjusted for North West England build costs (×0.95) and including VAT. Design and council fees are shown separately on each page.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Single-storey rear extensions | 20 m² | £38,500 – £49,500 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
| Conservatory replacement extensions | 14 m² | £28,500 – £37,000 |
| Wraparound extensions | 25 m² | £54,500 – £69,000 |
Which extension suits a Prescot home?
Across the North West, terraced houses with small rear yards suit compact rear and side return extensions, while suburban semis have room for more.
For many houses here, double-storey extensions, kitchen extensions or side return extensions gives the most useful space for the budget.
Choose an extension type
- Pitched roof extensions · from £21,000
- Wraparound extensions · from £34,000
- Home office extensions · from £15,000
- Extension plans and drawings · from £1,100
- Side extensions · from £20,500
- Side return extensions · from £17,000
- Bungalow extensions · from £24,500
- Annexe extensions · from £52,000
- Extensions over a garage · from £22,500
- Bedroom extensions · from £24,500
- Orangery extensions · from £28,500
- Utility and boot room extensions · from £13,000
- Building regulations for extensions · from £850
- Flat roof extensions · from £19,500
- Conservatory replacement extensions · from £19,000
- Timber frame extensions · from £19,500
- Double-storey extensions · from £36,000
- Planning permission for extensions · from £300
- Single-storey rear extensions · from £19,500
- Kitchen extensions · from £25,500
- Porch extensions · from £3,800
- Glass box extensions · from £28,500
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
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 Prescot
How much does an extension cost in Prescot?
Using our North West England factor (×0.95), a standard-spec single-storey extension of 20 m² is a guide £38,500 to £49,500 including VAT, and a 32 m² two-storey extension £54,500 to £71,500. Your written price follows the survey.
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.
Do I need planning permission for an extension in Prescot?
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.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Do you cover all of Prescot?
Yes, including the surrounding parts of Merseyside. Site visits are free and there is no obligation.
Book a free site visit in Prescot
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.