House extensions in Ellesmere Port
More space without moving: we plan and build extensions across Ellesmere Port, with one team for the drawings, the council and the build.
- Postcode districtsCH65, CH66
- Price regionNorth West England (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation

Approvals for an extension in Ellesmere Port
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).
Choosing the right extension in Ellesmere Port
The North West has a high share of Victorian and Edwardian terraces with rear yards and outriggers, plus large areas of inter-war semis in the suburbs.
Start by comparing single-storey rear extensions, double-storey extensions and kitchen extensions: between them they cover most of the layouts we see requested for houses like these.
Areas we cover around Ellesmere Port
Postcode districts we cover around Ellesmere Port include CH65, CH66. We also work in nearby Chester (6 miles), Runcorn (8 miles), Widnes (9 miles), Warrington (15 miles), Northwich (16 miles). For homes towards Merseyside, Halewood is around 6 miles away.
Guide prices for Ellesmere Port
Prices on this page use our North West England factor of ×0.95, include VAT at 20% and cover the build; your written price follows a survey and agreed drawings.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Wraparound extensions | 25 m² | £54,500 – £69,000 |
| Double-storey extensions | 32 m² | £54,500 – £71,500 |
| Conservatory replacement extensions | 14 m² | £28,500 – £37,000 |
| Extensions over a garage | 12 m² | £23,500 – £31,000 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
Choose an extension type
- Flat roof extensions · from £19,500
- Wraparound extensions · from £34,000
- Double-storey extensions · from £36,000
- Pitched roof extensions · from £21,000
- Side return extensions · from £17,000
- Conservatory replacement extensions · from £19,000
- Extensions over a garage · from £22,500
- Extension plans and drawings · from £1,100
- Building regulations for extensions · from £850
- Single-storey rear extensions · from £19,500
- Timber frame extensions · from £19,500
- Bungalow extensions · from £24,500
- Orangery extensions · from £28,500
- Porch extensions · from £3,800
- Bedroom extensions · from £24,500
- Side extensions · from £20,500
- Kitchen extensions · from £25,500
- Planning permission for extensions · from £300
- Utility and boot room extensions · from £13,000
- Glass box extensions · from £28,500
- Home office extensions · from £15,000
- Annexe extensions · from £52,000
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions about extensions in Ellesmere Port
How much does an extension cost in Ellesmere Port?
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.
Who do I contract with?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
How long does an extension take in Ellesmere Port?
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.
Book a free site visit in Ellesmere Port
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.