Extending your home in Ilkeston
Planning an extension in Ilkeston? Compare extension types, see guide prices adjusted for Ilkeston and book a free site visit.
- Postcode districtsDE7
- Price regionEast Midlands (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation

Popular extension prices in Ilkeston
We publish guide prices so you can budget before anyone visits. For Ilkeston they are adjusted by ×0.95, the factor we use across East Midlands.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Extensions over a garage | 12 m² | £23,500 – £31,000 |
| Wraparound extensions | 25 m² | £54,500 – £69,000 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
| Double-storey extensions | 32 m² | £54,500 – £71,500 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,500 |
| Conservatory replacement extensions | 14 m² | £28,500 – £37,000 |
Choosing the right extension in Ilkeston
The East Midlands has plenty of inter-war and post-war semis and detached houses with room to extend, alongside Victorian terraces in the towns.
The types we would usually look at first for a home in Ilkeston are double-storey extensions, single-storey rear extensions and conservatory replacement extensions, depending on the garden and how the house is laid out.
Covering Ilkeston and nearby
Across DE7, we can visit, measure and advise. Nearby, we also take on projects in Heanor (4 miles), Long Eaton (5 miles), Ripley (6 miles), Derby (8 miles), Belper (8 miles). Eastwood, in Nottinghamshire, is roughly 2 miles from Ilkeston and also on our list.
Do extensions in Ilkeston need planning permission?
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.
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).
Choose an extension type
- Kitchen extensions · from £25,500
- Side extensions · from £20,500
- Single-storey rear extensions · from £19,500
- Double-storey extensions · from £36,000
- Building regulations for extensions · from £850
- Extension plans and drawings · from £1,100
- Wraparound extensions · from £34,000
- Porch extensions · from £3,800
- Side return extensions · from £17,000
- Annexe extensions · from £52,000
- Flat roof extensions · from £19,500
- Glass box extensions · from £28,500
- Planning permission for extensions · from £300
- Timber frame extensions · from £19,500
- Pitched roof extensions · from £21,000
- Conservatory replacement extensions · from £19,000
- Bungalow extensions · from £24,500
- Bedroom extensions · from £24,500
- Orangery extensions · from £28,500
- Utility and boot room extensions · from £13,000
- Extensions over a garage · from £22,500
- Home office extensions · from £15,000
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
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 Ilkeston
How much does an extension cost in Ilkeston?
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 cover all of Ilkeston?
Yes, including the surrounding parts of Derbyshire. Site visits are free and there is no obligation.
How long does an extension take in Ilkeston?
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 Ilkeston
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.