Two-storey extensions in Mablethorpe
Homeowners in Mablethorpe can use us for the whole project or just the drawings and approvals. Start with a free visit.
Mablethorpe at a glance
- Postcode districts
- LN12 and LN13
- Area
- Lincolnshire, England
- Price region
- East Midlands
- Nearest towns
- Louth (11.1 miles), Skegness (14 miles), Cleethorpes (19.4 miles), Grimsby (20.8 miles)
- Distance to Lincoln
- about 33.9 miles
- Approvals
- Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission.
Mablethorpe sits about 33.9 miles from Lincoln. Closer to home, Louth is 11.1 miles away and Skegness 14.0 miles.
Extensions available in Mablethorpe
Two-storey rear extensions
For homes in Mablethorpe: typical guide from £55,000.
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Two-storey side extensions
Our East Midlands guide starts at £84,500 for this type.
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Two-storey wraparound extensions
Guide from £118,000 in Mablethorpe, including VAT.
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Part single, part two-storey extensions
Mablethorpe guide price from £70,500, Standard spec.
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Extensions over a garage
Our East Midlands guide starts at £31,000 for this type.
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First-floor extensions
From £24,500 in Mablethorpe. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Our East Midlands guide starts at £55,000 for this type.
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Two-storey extensions for detached houses
Design, approvals and build for Mablethorpe homes. Guide from £84,500.
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Kitchen extensions with bedrooms above
Design, approvals and build for Mablethorpe homes. Guide from £55,000 (before kitchen units).
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Extra bedroom and en-suite extensions
Our East Midlands guide starts at £55,000 (plus en-suite) for this type.
Learn moreWhich type suits your house?
If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Mablethorpe, with a rough idea of the approval route and cost for each.
Also available in Lincolnshire
- Two-storey front extensions
- Two-storey extensions for end-of-terrace houses
- Two-storey annexe extensions
- Garage conversions with a room above
- Two-storey extension plans and drawings
- Planning permission for two-storey extensions
- Structural engineering for two-storey extensions
- Building regulations for two-storey extensions
- Party wall notices for extensions
- Design and build two-storey extensions
Rules for Mablethorpe
Mablethorpe is in England. Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission. Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
The full England rules explained
Questions about extensions in Mablethorpe
Do you cover Mablethorpe?
Yes. We cover Mablethorpe (LN12 and LN13) and the surrounding area, including Louth and Skegness. The first site visit is free.
What does a two-storey extension cost in Mablethorpe?
Using our East Midlands guide, a two-storey rear extension with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) is about £55,000–£74,000 including VAT. An extension over a garage is about £31,000–£45,000.
Which other places near Mablethorpe do you cover?
Everywhere around it, including Louth (11.1 miles), Skegness (14 miles) and Cleethorpes (19.4 miles), and the rest of Lincolnshire.