Home extensions in Newcastle-under-Lyme
Planning an extension in Newcastle-under-Lyme? Compare extension types, see guide prices adjusted for Newcastle-under-Lyme and book a free site visit.
- Postcode districtsST1, ST2, ST4, ST5, ST6, ST12
- Price regionWest Midlands (×0.97)
- Planning rulesEngland
- Site visitFree, no obligation
Popular extension prices in Newcastle-under-Lyme
Every figure below is a guide for Newcastle-under-Lyme, adjusted for West Midlands build costs (×0.97) and including VAT. Design and council fees are shown separately on each page.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Extensions over a garage | 12 m² | £24,000 – £31,500 |
| Orangery extensions | 16 m² | £43,000 – £54,500 |
| Kitchen extensions | 20 m² | £40,500 – £51,500 |
| Side return extensions | 11 m² | £25,500 – £32,500 |
| Conservatory replacement extensions | 14 m² | £29,000 – £37,500 |
Where we work near Newcastle-under-Lyme
Postcode districts we cover around Newcastle-under-Lyme include ST1, ST2, ST4, ST5, ST6, ST12. We also work in nearby Stoke-on-Trent (2 miles), Longton (4 miles), Kidsgrove (6 miles), Leek (11 miles), Stafford (14 miles). For homes towards Cheshire, Crewe is around 11 miles away.
What works best for Newcastle-under-Lyme houses?
The West Midlands has a large stock of 1930s and post-war semi-detached houses, which are well suited to rear, side and over-garage extensions, plus Victorian terraces in the older inner areas.
For many houses here, kitchen extensions, double-storey extensions or extensions over a garage gives the most useful space for the budget.
Planning rules in Newcastle-under-Lyme
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 two-storey rear extension is permitted development only if it projects no more than 3 m from the original rear wall, sits at least 7 m from the rear boundary, matches the roof pitch and uses obscure, non-opening side windows upstairs. Most two-storey extensions therefore go through a householder planning application, which costs £548 from 1 April 2026 and normally takes about 8 weeks.
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 Newcastle-under-Lyme
- Side return extensions · from £17,000
- Home office extensions · from £15,500
- Kitchen extensions · from £26,000
- Single-storey rear extensions · from £20,000
- Side extensions · from £21,000
- Wraparound extensions · from £34,500
- Utility and boot room extensions · from £13,500
- Flat roof extensions · from £20,000
- Timber frame extensions · from £20,000
- Annexe extensions · from £53,000
- Conservatory replacement extensions · from £19,000
- Planning permission for extensions · from £300
- Extension plans and drawings · from £1,150
- Building regulations for extensions · from £850
- Double-storey extensions · from £36,500
- Bungalow extensions · from £25,000
- Extensions over a garage · from £23,000
- Porch extensions · from £3,850
- Orangery extensions · from £29,000
- Pitched roof extensions · from £21,500
- Bedroom extensions · from £25,000
- Glass box extensions · from £29,000
Free site visit
We visit your Newcastle-under-Lyme home, measure up, talk through what you want and check the planning position.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
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 Newcastle-under-Lyme
How much does an extension cost in Newcastle-under-Lyme?
Using our West Midlands factor (×0.97), a standard-spec single-storey extension of 20 m² is a guide £39,500 to £50,500 including VAT, and a 32 m² two-storey extension £55,500 to £73,000. Your written price follows the survey.
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 Newcastle-under-Lyme?
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 you cover all of Newcastle-under-Lyme?
Yes, including the surrounding parts of Staffordshire. Site visits are free and there is no obligation.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Newcastle-under-Lyme, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in Newcastle-under-Lyme
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.