Otley, West Yorkshire
Single-storey rear extension in Otley
Ground-floor space across the back of the house, usually for a kitchen, dining or family room. If you live in Otley and want to know what a single-storey rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Otley and its postcode districts LS21 are part of our West Yorkshire coverage. A depth of 3 to 4 metres keeps many single-storey rear extensions in Otley within permitted development, subject to the house's planning history.
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 single-storey rear extension cost in Otley?
Guide prices for a single-storey rear extension in Otley start from our Yorkshire and the Humber rate of £1,770–£2,880 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 wide × 4 m deep (12 m²) | £21,000–£34,500 |
| 4 m wide × 5 m deep (20 m²) | £35,500–£57,500 |
| 4 m wide × 6 m deep (24 m²) | £42,500–£69,000 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a single-storey rear extension in Otley?
The planning route for a single-storey rear extension in Otley is set by England's householder rules and your council.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is within 2 metres of a boundary.
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. 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 Otley like to extend?
Stone terraces and brick semis are typical of Otley. Matching sandstone or gritstone on a terrace is one of the biggest cost variables, and reclaimed stone is often the best match.
How a single-storey rear extension in Otley 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.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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.
Single-storey rear extensions near Otley
From Otley, the nearest places we also cover are Guiseley (2.2 miles) and Yeadon (2.9 miles).
- Single-storey rear extension in Guiseley
- Single-storey rear extension in Yeadon
- Single-storey rear extension in Horsforth
- Single-storey rear extension in Ilkley
- Single-storey rear extension in Baildon
Other work in Otley:
FAQ
Single-storey rear extension questions in Otley
Can you match the brick or stone on my Otley house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Is the site visit in Otley free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How deep can a single-storey rear extension be without planning?
In England, 3 metres on an attached house and 4 metres on a detached house under permitted development, or up to 6 and 8 metres with prior approval. Wales allows 4 metres; Scotland and Northern Ireland have their own limits.
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 I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
Do you handle building control in Otley?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.