Conisbrough, South Yorkshire
Two-storey rear extension in Conisbrough
For homes in Conisbrough, a two-storey rear extension is often the simplest way to gain space without moving. A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. We take it from survey to completion certificate.
Conisbrough sits in South Yorkshire, with postcode districts including DN12. In Conisbrough, a two-storey rear extension is worth comparing with the cost of moving once stamp duty, agents' and legal fees are counted.
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 two-storey rear extension cost in Conisbrough?
Guide prices for a two-storey rear extension in Conisbrough start from our Yorkshire and the Humber rate of £1,670–£2,510 per square metre, including VAT. Yorkshire prices sit below our West Midlands baseline; matching natural stone is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m × 5 m footprint, two floors (30 m²) | £50,000–£75,500 |
| 4 m × 6 m footprint, two floors (48 m²) | £80,500–£120,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a two-storey rear extension in Conisbrough?
The planning route for a two-storey rear extension in Conisbrough is set by England's householder rules and your council.
England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.
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 Conisbrough like to extend?
Stone terraces and brick semis are typical of Conisbrough. Matching sandstone or gritstone on a terrace is one of the biggest cost variables, and reclaimed stone is often the best match.
How a two-storey rear extension in Conisbrough 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
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.
Two-storey rear extensions near Conisbrough
Neighbouring places we cover include Mexborough (2.6 miles) and Bolton upon Dearne (4.2 miles).
- Two-storey rear extension in Mexborough
- Two-storey rear extension in Bolton upon Dearne
- Two-storey rear extension in Maltby
- Two-storey rear extension in Rawmarsh
- Two-storey rear extension in Wath upon Dearne
Other work in Conisbrough:
FAQ
Two-storey rear extension questions in Conisbrough
Is the site visit in Conisbrough free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How long does a rear extension take to build in Conisbrough?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Is two-storey cheaper per square metre than single-storey?
Usually yes, because the foundations and roof are shared across twice the floor area. The total cost is higher.
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.
Can you match the brick or stone on my Conisbrough house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Do you handle building control in Conisbrough?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.