Two-storey extensions in Louth
Planning a bigger home in Louth? Compare extension types and guide prices below, then book a free site visit.
Louth at a glance
- Postcode districts
- LN11
- Area
- Lincolnshire, England
- Price region
- East Midlands
- Nearest towns
- Mablethorpe (11.1 miles), Cleethorpes (13.4 miles), Grimsby (14 miles), Immingham (19.2 miles)
- Distance to Lincoln
- about 24.1 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.
We cover Louth (LN11) and the places around it, including Mablethorpe (11.1 miles), Cleethorpes (13.4 miles) and Grimsby.
Extensions available in Louth
Two-storey rear extensions
Design, approvals and build for Louth homes. Guide from £55,000.
Learn more
Two-storey side extensions
Louth guide price from £84,500, Standard spec.
Learn more
Two-storey wraparound extensions
For homes in Louth: typical guide from £118,000.
Learn more
Part single, part two-storey extensions
Louth guide price from £70,500, Standard spec.
Learn more
Extensions over a garage
For homes in Louth: typical guide from £31,000.
Learn more
First-floor extensions
From £24,500 in Louth. Free visit to firm it up.
Learn more
Two-storey extensions for semi-detached houses
Design, approvals and build for Louth homes. Guide from £55,000.
Learn more
Two-storey extensions for detached houses
For homes in Louth: typical guide from £84,500.
Learn more
Kitchen extensions with bedrooms above
From £55,000 (before kitchen units) in Louth. Free visit to firm it up.
Learn more
Extra bedroom and en-suite extensions
From £55,000 (plus en-suite) in Louth. Free visit to firm it up.
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 Louth, 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 Louth
Louth 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 Louth
Do you cover Louth?
Yes. We cover Louth (LN11) and the surrounding area, including Mablethorpe and Cleethorpes. The first site visit is free.
What does a two-storey extension cost in Louth?
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 Louth do you cover?
Everywhere around it, including Mablethorpe (11.1 miles), Cleethorpes (13.4 miles) and Grimsby (14 miles), and the rest of Lincolnshire.