Single Storey Rear Extension Nottingham
A single storey rear extension is the simplest way to add real living space to the back of your home. It is ideal for opening up a bright, modern kitchen-diner or a family room that flows straight out to the garden.
We handle everything from the first site survey to the final coat of paint, working across Nottingham and the surrounding areas with a fixed quote and a clear build schedule.
- Most builds finished in 8 to 12 weeks
- Often possible under Permitted Development
- Fixed price with no hidden extras
A ground floor extension to the back of your home
A single storey rear extension adds a new ground floor room across the back of your property. It is the most popular type of extension we build because it delivers a big lift in usable space without the cost and disruption of a second storey.
Most homeowners use the extra room for an open-plan kitchen-diner, a larger living area, a utility space or a home office. Because the roof sits low against the rear wall, the design blends neatly with the existing house and keeps neighbours happy.
This type of extension suits nearly every house style, from Victorian terraces to 1930s semis and modern estates. If you want to spread your budget further and avoid staircase changes, a single storey rear build is usually the smart choice.
Best For
Homeowners who want a bright kitchen-diner or family room that opens onto the garden, without the expense of building upwards.
Typical Size
Most rear extensions add between 3m and 6m of depth, giving 15 to 30 square metres of new floor space.
Why choose a single storey rear extension
- More living space – create the open-plan kitchen-diner or family room your home has been missing.
- Better value – it costs less per square metre than building upwards or converting a loft.
- Natural light – roof lanterns, skylights and bi-fold doors flood the new room with daylight.
- Garden connection – large glazed doors link your kitchen straight to the outside for easy family living.
- Often no full planning – many builds fall under Permitted Development, saving time and paperwork.
- Added home value – a well built extension typically returns more than it costs when you sell.
How we build your extension
Free Site Survey
We visit your home, measure up and talk through what you want to achieve and your budget.
Design and Drawings
Our team prepares plans and confirms whether you need planning permission or Permitted Development.
Fixed Quote
You receive a clear, itemised price with no hidden extras and an agreed build timeline.
Approvals
We handle planning submissions, Building Regulations and any Party Wall matters on your behalf.
Groundwork and Build
Foundations go in, walls go up and the roof is fitted, all managed by our own trusted trades.
Fit Out
Glazing, electrics, plastering, flooring and decoration bring the new room to life.
Handover
We complete a final walk-through, sign off the paperwork and hand over your finished space.
Single storey rear extension prices
| Extension Type | Approx Size | Guide Price (2026) |
|---|---|---|
| Small rear extension | Up to 15 sq m | £30,000 – £42,000 |
| Standard rear extension | 15 to 25 sq m | £42,000 – £62,000 |
| Large kitchen-diner extension | 25 to 35 sq m | £62,000 – £85,000 |
| Premium finish and glazing | Roof lantern, bi-folds | Add £8,000 – £18,000 |
Prices are guide ranges for Nottingham in 2026 and depend on ground conditions, glazing and finish. Your fixed quote follows a free site survey.
📋 Planning and Permitted Development
Many single storey rear extensions can be built under Permitted Development, which means no full planning application. For a detached house you can usually extend up to 4m from the rear wall, and 3m for a semi or terrace, subject to conditions.
Larger builds up to 8m (detached) or 6m (semi and terrace) may qualify under the Larger Home Extension scheme with a prior approval notice. Building Regulations always apply, and a Party Wall agreement may be needed if you build near a shared boundary. We check all of this for you before any work begins.
We Handle the Paperwork
From planning drawings to Building Control sign-off, our team manages every approval so you do not have to.
Single storey rear extensions across the region
Not sure if we cover your street? Give us a call and we will let you know.
Recent single storey rear extensions
What our customers say
Real reviews from local homeowners.
Our single storey rear extension turned a cramped kitchen into a huge open-plan space. The team stuck to the quote and finished on time. We could not be happier.
They sorted the Permitted Development side so we avoided a full planning application. The bi-fold doors and roof lantern make the room feel amazing. Tidy workers too.
From the first survey to handover everything was clear and professional. Our new family room opens right onto the garden and the brickwork matches perfectly.
Single storey rear extension questions
As a guide, expect around £30,000 to £62,000 for most single storey rear extensions in 2026, depending on size and finish. Premium glazing such as bi-folds and a roof lantern adds more. You get a fixed price after a free site survey.
Often not. Many rear extensions fall under Permitted Development, so no full application is needed. Larger builds may need a prior approval notice or planning permission. We confirm exactly what applies to your home before we start.
Most single storey rear extensions take 8 to 12 weeks on site, depending on size, ground conditions and finish. We give you a clear timeline with your fixed quote so you know what to expect.
Under Permitted Development you can usually extend 3m from the rear wall on a semi or terrace, and 4m on a detached house. Larger schemes may reach 6m or 8m with prior approval. We check the limits for your property.
A well built rear extension usually adds more value than it costs, especially when it creates a modern open-plan kitchen-diner. It also makes the home more appealing to buyers who want family living space.
Yes, most families stay put throughout. There is some disruption when we knock through to the existing house, but we plan the work to keep your kitchen usable for as long as possible and keep the site clean and safe.
Ready to start your rear extension?
Book a free site survey and get a fixed quote with no obligation. We will talk you through the design, planning and cost.