Extensions in Alfreton: design, planning and build
Every type of house extension in Alfreton, from single-storey kitchen extensions to two-storey additions, side returns and orangeries. We design, handle the approvals and build.
- Postcode districtsDE55
- Price regionEast Midlands (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation
Planning rules in Alfreton
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 return infill is often permitted development if it stays within the height limits and is no wider than half the width of the original house. Conservation areas, listed buildings and flats always need an application, and the boundary wall usually brings in the Party Wall Act.
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 Alfreton
Homes across the East Midlands often have usable side land or a driveway beside the house, which opens up side and wraparound options.
The types we would usually look at first for a home in Alfreton are single-storey rear extensions, double-storey extensions and side extensions, depending on the garden and how the house is laid out.
Alfreton extension prices at a glance
Prices on this page use our East Midlands 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) |
|---|---|---|
| Conservatory replacement extensions | 14 m² | £28,500 – £37,000 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,500 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
| Extensions over a garage | 12 m² | £23,500 – £31,000 |
| Wraparound extensions | 25 m² | £54,500 – £69,000 |
Areas we cover around Alfreton
Postcode districts we cover around Alfreton include DE55. Nearby, we also take on projects in Ripley (4 miles), Heanor (6 miles), Belper (7 miles), Ilkeston (9 miles), Chesterfield (11 miles). Just over the Nottinghamshire border, Sutton-in-Ashfield is about 5 miles away.
Extension types and starting prices
- Wraparound extensions · from £34,000
- Side return extensions · from £17,000
- Single-storey rear extensions · from £19,500
- Extensions over a garage · from £22,500
- Home office extensions · from £15,000
- Timber frame extensions · from £19,500
- Building regulations for extensions · from £850
- Double-storey extensions · from £36,000
- Utility and boot room extensions · from £13,000
- Planning permission for extensions · from £300
- Conservatory replacement extensions · from £19,000
- Bungalow extensions · from £24,500
- Pitched roof extensions · from £21,000
- Glass box extensions · from £28,500
- Flat roof extensions · from £19,500
- Side extensions · from £20,500
- Extension plans and drawings · from £1,100
- Orangery extensions · from £28,500
- Annexe extensions · from £52,000
- Porch extensions · from £3,800
- Bedroom extensions · from £24,500
- Kitchen extensions · from £25,500
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
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
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 Alfreton
How much does an extension cost in Alfreton?
Using our East Midlands 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.
Do you cover all of Alfreton?
Yes, including the surrounding parts of Derbyshire. Site visits are free and there is no obligation.
Book a free site visit in Alfreton
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.