Extensions in Worksop: design, planning and build
From a small utility to a two-storey addition, we take on house extensions throughout Worksop, starting with a free visit and a planning check.
- Postcode districtsS80, S81
- Price regionEast Midlands (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation

Planning and building control in Worksop
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.
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).
Which extension suits a Worksop home?
Homes across the East Midlands often have usable side land or a driveway beside the house, which opens up side and wraparound options.
Depending on the plot, side extensions and conservatory replacement extensions are often the strongest options, with single-storey rear extensions worth considering where there is room.
Guide prices for Worksop
Use these Worksop guide prices to sense-check a budget; the guide-price tool narrows them to your own size, and the site visit turns them into a written figure.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| 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 |
| Extensions over a garage | 12 m² | £23,500 – £31,000 |
| Side return extensions | 11 m² | £25,000 – £31,500 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
Worksop and surrounding towns
Across S80, S81, we can visit, measure and advise. We also work in nearby Retford (8 miles), Mansfield Woodhouse (10 miles), Mansfield (12 miles), Sutton-in-Ashfield (13 miles), Kirkby-in-Ashfield (15 miles). Just over the South Yorkshire border, Dinnington is about 5 miles away.
Extension types and starting prices
- Porch extensions · from £3,800
- Orangery extensions · from £28,500
- Extensions over a garage · from £22,500
- Extension plans and drawings · from £1,100
- Bungalow extensions · from £24,500
- Home office extensions · from £15,000
- Single-storey rear extensions · from £19,500
- Glass box extensions · from £28,500
- Side return extensions · from £17,000
- Flat roof extensions · from £19,500
- Building regulations for extensions · from £850
- Planning permission for extensions · from £300
- Utility and boot room extensions · from £13,000
- Side extensions · from £20,500
- Timber frame extensions · from £19,500
- Pitched roof extensions · from £21,000
- Double-storey extensions · from £36,000
- Kitchen extensions · from £25,500
- Wraparound extensions · from £34,000
- Bedroom extensions · from £24,500
- Conservatory replacement extensions · from £19,000
- Annexe extensions · from £52,000
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
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Worksop
How much does an extension cost in Worksop?
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.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Worksop, and the guide-price tool gives a range for your own size and finish in about a minute.
Do I need planning permission for an extension in Worksop?
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.
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.
Book a free site visit in Worksop
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.