Kitchen Extension South London
30, Mar, 2026
Many homes across South London were built with layouts that no longer suit modern living. Cooking, dining, and spending time together often happen in separate, cramped spaces. That’s why homeowners start considering a kitchen extension in South London as a practical way to improve how their home works.
At Denham Crescent we focus on helping you make the right decision from the start. Not every house extension solves the problem. The goal is not just to add space, but to create a layout that feels open, functional, and easy to live in every day.
Is Your Home Suitable for a Kitchen Extension?
A common question we hear from clients is whether their property can actually be extended. In most cases, the answer is yes, but the approach depends on the type of home and available space. Many south london kitchen extensions are built on:
Terraced houses with rear or side return potential
Semi-detached homes with side access or garden space
Detached properties with more flexibility in layout
We assess this early so you avoid spending time on designs that won’t be practical.
Types of Kitchen Extensions That Work in South London
Our experts will help you choose the right extension type for your layout and budget.
Rear Kitchen Extensions
If your kitchen feels closed off and doesn’t connect to the garden, a rear extension can open up the space and create a larger kitchen-dining area.
Side Return Extensions
Common in South London terraces, this uses unused side space to widen the kitchen and improve layout without extending too far into the garden.
Wrap-Around Extensions
If both space and layout are issues, combining rear and side extensions allows you to redesign the entire ground floor.
Open-Plan Kitchen Extensions
This approach focuses on removing internal walls and creating a single, connected living space that works for cooking, dining, and relaxing.
How Much Does a Kitchen Extension Cost in South London?
Cost is one of the biggest concerns for clients when planning for south london kitchen extensions. The range includes:
Most projects in London fall between £2,500 and £4,000 per m², depending on materials, labour, and design complexity.
Here are the factors we experienced that influence cost:
Structural changes and steelwork
Plumbing and electrical installation
Doors, glazing, and rooflights
Kitchen fittings and finishes
Do You Need Planning Permission?
Normally, the kitchen extensions fall under Permitted Development, but this depends on the size and type of extension. Check if:
Rear extensions up to 3m (terraced/semi-detached) may not require permission
Larger extensions or wrap-around designs often need approval
Conservation areas have stricter rules
For kitchen extension south london projects, the Party Wall Act is also important if your property shares a boundary with neighbours.
We manage planning requirements and approvals so you don’t have to worry.
How Long Does a Kitchen Extension Take?
The timeframes depend on the complexity of the project, but most builds follow a similar structure.
Planning and design: 4-8 weeks
Construction: 8-12 weeks
We provide a clear timeline before work begins and keep you informed throughout. This helps avoid delays and keeps the project moving as expected.
What Your Kitchen Extension Will Include
Our team works on multiple stages that include:
Structural work and steel installation
Plumbing and drainage adjustments
Electrical installation and lighting
Flooring, plastering, and finishes
Kitchen fitting and final detailing
Every member puts real effort into ensuring all elements are covered, and the final result is as you expected.
Challenges in South London Homes
Homes in South London often come with specific challenges that need careful planning.
These include:
Limited access for construction
Shared walls with neighbouring properties
Older building structures
Tight spaces that restrict layout options
We account for these factors from the beginning so they don’t cause delays later in the build.
Start Planning Your Kitchen Extension
If you’re considering south london kitchen extensions and want clear advice on what will work for your home, Denham Crescent can help you take the next step.
Speak with our team to understand your options, expected costs, and how to move forward with confidence.
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