Extending your home in Lincolnshire
Planning an extension in Lincolnshire? Compare extension types, see guide prices adjusted for Lincolnshire and book a free site visit.
- Towns listed10
- Price regionEast Midlands (×0.95)
- Planning rulesEngland
- Postcode districts47
Towns we cover in Lincolnshire
Towns we cover here include Lincoln, Grimsby, Scunthorpe, Boston.
Choosing the right extension in Lincolnshire
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.
For many houses here, double-storey extensions, single-storey rear extensions or conservatory replacement extensions gives the most useful space for the budget.
What extensions cost in Lincolnshire
Use these Lincolnshire 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) |
|---|---|---|
| Double-storey extensions | 32 m² | £54,500 – £71,500 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,500 |
| Wraparound extensions | 25 m² | £54,500 – £69,000 |
| Extensions over a garage | 12 m² | £23,500 – £31,000 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
| Conservatory replacement extensions | 14 m² | £28,500 – £37,000 |
Do extensions in Lincolnshire 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 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.
Every extension type in Lincolnshire
- Extensions over a garage · from £22,500
- Porch extensions · from £3,800
- Side extensions · from £20,500
- Building regulations for extensions · from £850
- Flat roof extensions · from £19,500
- Planning permission for extensions · from £300
- Kitchen extensions · from £25,500
- Utility and boot room extensions · from £13,000
- Extension plans and drawings · from £1,100
- Single-storey rear extensions · from £19,500
- Side return extensions · from £17,000
- Orangery extensions · from £28,500
- Home office extensions · from £15,000
- Glass box extensions · from £28,500
- Bedroom extensions · from £24,500
- Conservatory replacement extensions · from £19,000
- Pitched roof extensions · from £21,000
- Wraparound extensions · from £34,000
- Double-storey extensions · from £36,000
- Bungalow extensions · from £24,500
- Annexe extensions · from £52,000
- Timber frame extensions · from £19,500
Neighbouring areas
Questions about extensions in Lincolnshire
How much does an extension cost in Lincolnshire?
With our East Midlands factor (×0.95), a standard-spec 20 m² single-storey extension is a guide £38,500 to £49,500 including VAT. Prices for every type are linked on this page.
Do I need planning permission for an extension in Lincolnshire?
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.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Lincolnshire, and the guide-price tool gives a range for your own size and finish in about a minute.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
Book a free site visit in Lincolnshire
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.