Bentley, South Yorkshire
Two-storey rear extension in Bentley
We plan and build two-storey rear extensions for homeowners in Bentley. A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. Start with a free site visit, then a written price once the design is agreed.
Bentley and its postcode districts DN1, DN2 and DN5 are part of our South Yorkshire coverage. In South Yorkshire we check the neighbours' rear windows first, because the upper floor is where most two-storey schemes win or lose planning.
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 Bentley?
A two-storey rear extension in Bentley is priced at £1,670–£2,510 per square metre including VAT as a guide, before kitchen fit-out and fees. 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 Bentley?
Planning for a two-storey rear extension in Bentley follows the English householder rules.
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.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Bentley like to extend?
Stone terraces and brick semis are typical of Bentley. 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 Bentley comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
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.
Two-storey rear extensions near Bentley
From Bentley, the nearest places we also cover are Doncaster (1.1 miles) and Adwick le Street (2.9 miles).
- Two-storey rear extension in Doncaster
- Two-storey rear extension in Adwick le Street
- Two-storey rear extension in Kirk Sandall
- Two-storey rear extension in Armthorpe
- Two-storey rear extension in Conisbrough
Other work in Bentley:
FAQ
Two-storey rear extension questions in Bentley
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.
What postcode areas do you cover around Bentley?
Including DN1, DN2 and DN5, and the surrounding South Yorkshire area.
Can I add an en-suite upstairs?
Yes. We plan the soil pipe route early so the bathroom sits where drainage works without boxing through the room below.
Do you handle building control in Bentley?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Can you match the brick or stone on my Bentley house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.