Mablethorpe, Lincolnshire
Side return extension in Mablethorpe
Side return extension in Mablethorpe: infilling the narrow passage beside a Victorian or Edwardian back addition. 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. Side returns suit the Victorian and Edwardian terraces found across parts of Lincolnshire, where the kitchen sits in a narrow back addition.
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 side return extension cost in Mablethorpe?
For Mablethorpe we work from the East Midlands rate: £2,230–£3,690 per square metre of new floor, including VAT, standard specification. East Midlands prices sit a little below our West Midlands baseline.
| Size | Guide price inc VAT |
|---|---|
| 2 m wide × 6 m deep (12 m²) | £27,000–£44,000 |
| 2.5 m wide × 7 m deep (17.5 m²) | £39,000–£64,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a side return extension in Mablethorpe?
Whether your side return extension in Mablethorpe needs a planning application depends on its size, your house and any local restrictions.
Side return infills and the side leg of a wraparound are treated as side extensions in England: single-storey, no more than 4 metres high and no wider than half the original house. They are not permitted development in conservation areas, National Parks or National Landscapes, and a joined wraparound often needs a planning application because the side and rear rules apply together.
The Party Wall etc. Act 1996 applies in England: you serve notice two months before work to a shared wall, and one month before digging foundations within 3 metres (or 6 metres for deeper foundations) of a neighbour's building. Neighbours can agree in writing; if they dissent, surveyors agree an award.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Mablethorpe like to extend?
Red-brick terraces and semis are typical of Mablethorpe. Coal-mining legacy areas in parts of the East Midlands can need a Coal Authority check before foundations are designed.
How a side return 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Side return extensions near Mablethorpe
Neighbouring places we cover include Louth (11.1 miles) and Skegness (14.0 miles).
- Side return extension in Louth
- Side return extension in Skegness
- Side return extension in Cleethorpes
- Side return extension in Grimsby
- Side return extension in Immingham
Other work in Mablethorpe:
FAQ
Side return extension questions in Mablethorpe
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.
Where does the drainage go?
Side passages often carry the soil and rainwater pipes. We survey them first and reroute them under the new floor where needed.
How much does a side return extension cost in Mablethorpe?
As a guide, £2,230–£3,690 per square metre including VAT for a standard specification. For example, 2 m wide × 6 m deep (12 m²): about £27,000–£44,000 at that rate. Your written price follows the survey.
What postcode areas do you cover around Mablethorpe?
Including LN12, and the surrounding Lincolnshire area.
How long does a rear extension take to build in Mablethorpe?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.