Mablethorpe, Lincolnshire
Bungalow rear extension in Mablethorpe
Bungalow rear extension in Mablethorpe: single-storey rear extensions that keep everything on one level. We measure the house, show you what the rules allow, price it in writing and build it.
Mablethorpe sits in Lincolnshire, with postcode districts including LN12. For Mablethorpe bungalows we design the roof first, because the low eaves decide the height of the new room.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a bungalow rear extension cost in Mablethorpe?
In Mablethorpe, our guide for a bungalow rear extension is £1,790–£2,910 per square metre including VAT for a standard specification. East Midlands prices sit a little below our West Midlands baseline.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £21,500–£35,000 |
| 4 m wide × 6 m deep (24 m²) | £43,000–£70,000 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a bungalow rear extension in Mablethorpe?
The planning route for a bungalow rear extension in Mablethorpe is set by England's householder rules and your council.
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part is within 2 metres of a boundary.
If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Mablethorpe like to extend?
Mablethorpe has plenty of inter-war semis and bungalows, and single-storey rear extensions suit both.
How a bungalow rear extension in Mablethorpe comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Bungalow rear extensions near Mablethorpe
Close by, we work in Louth, about 11.1 miles away, and Skegness, about 14.0 miles away.
- Bungalow rear extension in Louth
- Bungalow rear extension in Skegness
- Bungalow rear extension in Cleethorpes
- Bungalow rear extension in Grimsby
- Bungalow rear extension in Immingham
Other work in Mablethorpe:
FAQ
Bungalow rear extension questions in Mablethorpe
Is the site visit in Mablethorpe free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
What postcode areas do you cover around Mablethorpe?
Including LN12, and the surrounding Lincolnshire area.
Will the roof look odd?
Not if the pitch and tiles match. Where the eaves are low, a flat-roofed section with a lantern is an alternative.
How much does a bungalow rear extension cost in Mablethorpe?
As a guide, £1,790–£2,910 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £21,500–£35,000 at that rate. Your written price follows the survey.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.