Side Return Extension Nottingham
A side return extension fills in the narrow, often wasted alley beside your kitchen, turning a cramped galley into a bright, open-plan hub. It is one of the smartest ways to add usable space to a Victorian or Edwardian terrace.
We design and build side return extensions across the city and surrounding areas, handling everything from drawings and planning to the final coat of paint.
- Perfect for period terraced homes
- Often within permitted development
- Fixed quotes with no hidden extras
What is a side return extension?
The side return is the narrow strip of ground that runs alongside the back of many period terraced and semi-detached houses. It usually sits next to the kitchen and is often little more than a passageway or a spot for the bins. A side return extension builds into this unused space, widening the room behind it.
Because the footprint is small, this type of extension is one of the most cost-effective ways to transform a tight kitchen. Pair it with a rear extension and you can create a large, light-filled kitchen-diner that opens onto the garden. Roof lanterns and glazed doors bring in the daylight that terraced homes usually lack.
A side return works best for Victorian and Edwardian terraces, but any home with a spare alley beside the kitchen can benefit. If you are unsure whether yours qualifies, we will tell you at the free survey.
Best For
Victorian and Edwardian terraces, cramped galley kitchens, and homes with a narrow unused alley beside the rear room.
Typical Timescale
Most side return builds take 8 to 12 weeks on site, plus design and planning time beforehand.
Why choose a side return extension
- Reclaims dead space – turns a useless alley into proper floor area without eating into your garden.
- Floods the room with light – roof lanterns and glazed doors brighten a once-dark kitchen.
- Great value per square metre – a small footprint means a lower overall cost than most extensions.
- Opens up the layout – removes the cramped galley feel and creates room for a dining table or island.
- Adds resale value – a modern open-plan kitchen is one of the top features UK buyers look for.
- Often no full planning needed – many side returns fall within permitted development rights.
How we build your side return extension
Free Survey
We visit, measure the side return and discuss how you want to use the new space.
Design and Drawings
Our team produces plans that make the most of the width and light you can gain.
Planning and Building Control
We handle permitted development checks or applications and all Building Regulations sign-off.
Party Wall Agreement
Where a shared boundary is affected, we arrange the notices with your neighbours.
Groundwork and Build
We lay foundations, build the structure and weatherproof the new roof and walls.
Fit Out and Finish
Glazing, plastering, flooring and decoration ready for your kitchen fitters.
Handover
A final walk round, snagging and all your certificates and warranties.
Side return extension costs
Every home is different, but these 2026 guide ranges give you a realistic starting point. We provide a fixed written quote after the survey.
| Project Type | Guide Price Range | Notes |
|---|---|---|
| Side return only (small) | £30,000 – £45,000 | Infill to widen an existing kitchen |
| Side return with rooflights | £40,000 – £55,000 | Adds roof lanterns and better glazing |
| Side return plus rear extension | £55,000 – £80,000 | Full open-plan kitchen-diner |
| Premium finish and bifolds | £70,000+ | High-spec glazing, flooring and joinery |
Prices are guide ranges only and exclude kitchen units and appliances. Your final quote depends on size, ground conditions and specification.
Do you need planning permission?
Side return planning basics
Many single-storey side return extensions fall within permitted development, but there are limits on width, height and how far you can extend. Key points to know:
- Width limit – a side extension under permitted development must be no wider than half the width of the original house.
- Height limit – single storey with a maximum height of around 4 metres, or 3 metres near a boundary.
- Conservation areas – stricter rules apply, and permitted development rights may be removed.
- Party Wall Act – you will usually need an agreement with the neighbour whose wall you build against.
We check your rights at the survey and manage any application from start to finish. Our planning success rate is 100 percent.
📋 We Handle the Paperwork
From permitted development checks to Building Regulations and party wall notices, we take care of it all so you do not have to.
Side return extensions across the area
Not sure if we cover your street? Give us a call and we will let you know.
Recent side return projects
What our customers say
Real reviews from local homeowners.
Our old galley kitchen was so dark and narrow. The side return has completely changed it – we now have room for a proper table and the roof lantern makes it so bright. Faultless from start to finish.
They knew exactly how to make the most of the little alley beside our Victorian terrace. The team handled the party wall side with our neighbour brilliantly and kept everything tidy.
Great value for what we gained. Combining the side return with a small rear extension gave us the open-plan kitchen-diner we always wanted. The fixed quote never changed.
Side return extension questions
A side return fills the narrow alley to the side of your rear room, making it wider. A rear extension pushes the back of the house further into the garden, making it longer. Many homeowners combine both for a large open-plan space.
Often not. Many single-storey side returns fall within permitted development, provided they meet width and height limits. Conservation areas and listed buildings have stricter rules. We check this for you at the free survey.
As a guide, a small side return starts from around £30,000, while a side return combined with a rear extension typically runs £55,000 to £80,000. We give you a fixed written quote after measuring your home.
Most side return builds take 8 to 12 weeks on site once work begins. Design and planning add a few weeks beforehand. We give you a clear timeline before we start.
Usually yes, because a side return often builds against or close to a neighbour’s boundary. This is a standard part of the process. We prepare and serve the notices for you so it stays straightforward.
Most people do. You will be without your kitchen for part of the build, so many set up a temporary one. We keep the site tidy and work to cause as little disruption as possible.
Ready to transform your kitchen?
Book a free site survey and get a fixed quote for your side return extension with no obligation.