Leicestershire and Rutland
Rear extensions for semi-detached houses in Leicestershire and Rutland
Single or two-storey extensions for semi-detached houses, with side access and one party wall. Rear extensions in Leicestershire and Rutland: we cover 23 towns including Leicester, Loughborough and Hinckley, with design, approvals and the build under one contract.
In Leicester we measure the attached neighbour's extension at the survey, because it often sets the sensible depth for yours. Red-brick terraces and semis are typical of Leicestershire and Rutland. Coal-mining legacy areas in parts of the East Midlands can need a Coal Authority check before foundations are designed.
How much does a semi-detached rear extension cost in Leicestershire and Rutland?
For Leicestershire and Rutland we work from the East Midlands rate: £1,840–£3,010 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 |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £22,000–£36,000 |
| 4 m wide × 5 m deep (20 m²) | £37,000–£60,000 |
| 4 m wide × 6 m deep (24 m²) | £44,000–£72,000 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission in Leicestershire and Rutland?
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.
A two-storey rear extension can be permitted development in England only if it projects no more than 3 metres, stays at least 7 metres from the rear boundary, matches the existing roof pitch and has obscure-glazed upper side windows. In practice most double-storey rear extensions go through a householder planning application.
England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent.
Where in Leicestershire and Rutland do we work?
FAQ
Questions people ask
How far can I extend a semi without planning?
3 metres under permitted development in England, or up to 6 metres with prior approval, outside designated land.
Can I match pebbledash or render?
Yes. Many semis are refinished with new render across the whole back elevation so old and new match.
Single or two-storey on a semi?
Two-storey if you need bedrooms, single-storey if you need a bigger kitchen. Planning risk is lower for single-storey.
Do you cover all of Leicestershire and Rutland?
We cover 23 towns and districts in Leicestershire and Rutland, including Leicester, Loughborough and Hinckley.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.