Side Return Kitchen Extension
11, Jun, 2025
Do you have an empty alleyway or a thin area on the side of your house? A side return kitchen extension is an intelligent solution to transform that lost space into a spacious and well-lit kitchen that suits contemporary living.
At Denham Crescent, we specialise in creating beautiful and functional side return extensions in South London. Everything from initial design to completion, build, planning permission, and finishing touches will be taken care of by our professionals, so you get to use your new kitchen without the hassle.
What Is a Side Return Kitchen Extension?
A side return kitchen extension is a one-storey construction that closes in the gap at the side of your property, usually between your house and the boundary wall or fence. It's most prevalent in semi-detached and terraced properties in South West London.
Rather than leaving this area vacant, we assist you in converting it into part of your dining area or kitchen. It's the perfect means of expanding your house without encroaching on your garden.
Who Should Consider a Side Return Extension?
You should consider a side return kitchen extension if:
- You live in a Victorian or Edwardian semi-detached or terraced house
- Your kitchen is too narrow, dark, or small.
- You want an open-plan kitchen and dining area.
- You don't want to go too far into the garden.
- You’re trying to increase the value of your property.
Even if you're unsure whether your space is eligible, we'll walk you through the process during a free consultation.
What Are the Benefits?
Brighter Space
We install skylights or glass roofing to let in plenty of natural light, making your kitchen lighter and more inviting.
Bigger Kitchen
You can have extra space for cooking, dining, or even include an island or breakfast bar.
Open-Plan Living
Relish the seamless transition between the kitchen, dining, and living spaces. Ideal for families or entertaining friends.
Adds Value
A side return extension will often increase the value of your property. Several of our clients notice a rise in both property value and buyer interest.
Keeps the Garden
Unlike rear extensions, a side return extension doesn't remove much of your garden, so you retain your outdoor area as well.
Do I Need Planning Permission?
Permitted Development Rights usually cover side return extensions in most instances, so that you won't require full planning permission. But there are a few conditions:
- The extension itself cannot be more than half the width of the original building
- It should not project above any height or depth restrictions
- Your registration must not be in a conservation area or listed building
All planning checks and applications will be taken care of by our team, so you remain 100% in line with local council regulations.
We also ensure that your house extension complies with building regulations, such as good insulation, drainage, structural integrity, fire safety, and ventilation. You will get the certificates you need when the job's complete.
What’s Included in Our Service?
We provide a full side return extension service from start to finish, including:
Free Consultation
We evaluate your house and ideas and then provide recommendations based on your area and requirements.
Custom Design
Our designers design a kitchen plan that is suitable for your way of life and suits your house style.
Planning & Compliance
We take care of all area planning regulations, building regulations, and structural safety inspections.
Construction & Roofing
Our builders perform every construction task, from walls and roofing to any steelwork.
Glazing & Lighting
We fit skylights or glass roofs to allow the inside to be naturally lit and maximized.
Plumbing, Heating & Electrics
From underfloor heating to new lights, we cover all internal fittings.
Finishes & Fittings
We finish off your kitchen area with flooring, worktops, cabinets, and all else you require.
Side Return Kitchen Extensions FAQ
How long does a side return extension take to complete?
It usually takes most side return kitchen extensions between 10 and 14 weeks from the commencement of building work. The duration may differ depending on the design, finishes, and whether planning permission is required.
Will the extension affect natural light?
Not at all, in fact, it improves natural light. We tend to incorporate rooflights, glazed panels, or bi-fold doors to ensure your new kitchen is light, open, and integrated with the garden.
Can I live in my house during the build?
Yes, in general, you can remain in your home during work. Our staff will control noise, dust, and access carefully to minimize disruption. We will also ensure your kitchen remains usable for as long a period as possible.
Will a flat roof or a pitched roof be better for my extension?
It's up to your style and budget. Flat roofs create a sleek, contemporary appearance and tend to be less expensive. Pitched roofs are best for clients seeking additional height, a classic look, or more natural lighting via skylights. We'll advise the most suitable one during your consultation.
Areas We Cover
We work on side return extensions in the following areas and beyond:
Wimbledon | Raynes Park | Merton | Kingston | Tooting | Mitcham | Morden | Balham | Clapham
Pricing Guide
Our side return kitchen extensions begin at £40,000, depending on size, design, and materials.
Each quote includes:
- Full project design and build
- Planning and compliance management
- All materials and labour
- Project management and finishing
Optional additions such as bifold doors, roof lanterns, and underfloor heating are quoted separately in full detail.
Get in Touch Today
Want to extend your kitchen and let more light in?
Call Denham Crescent today or complete the form for a no-obligation, free consultation. We'll assist you in designing the ideal side return kitchen extension for your London property with a long-lasting and stunning design.
Read More: How Much Does a Kitchen Extension Cost?
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