Bespoke House Extensions in London
Create more space, improve your home and add long term property value with a carefully planned house extension from MBT Group.
A house extension is one of the most effective ways to improve your home without the cost and disruption of moving.
For many London homeowners, extending is the practical answer to a growing family, a lack of space, the need for open plan living or the desire for a better connection between the house and garden.
MBT Group designs and builds high quality house extensions across London.
We work with homeowners who want a properly managed build, clear communication and a finished space that feels like a natural part of the home. From rear kitchen extensions to side return projects, wraparound extensions and larger structural renovations, our team can support your project from the early planning stage through to construction and final completion.
Types Of House Extensions We Build
Rear Extensions
A rear extension extends the back of the property, usually into the garden. This is one of the most popular options for London homeowners who want a larger kitchen, dining area or family living space. A rear extension can transform a dark or cramped ground floor into a bright open plan area with garden views, rooflights and modern glazing.
Side Return Extensions
A side return extension makes use of the narrow side space often found beside Victorian and Edwardian terraced homes. This type of extension can dramatically improve the width and feel of the ground floor, especially when combined with a new kitchen layout and roof glazing
Wraparound Extensions
A wraparound extension combines a rear extension and a side return extension. It is a larger project, but it can completely reshape the ground floor of a property. This is ideal for homeowners who want a more significant transformation, including open plan living, dining and kitchen space
Double Storey Extensions
A double storey extension can add valuable space on both the ground floor and first floor. This may be suitable for homeowners who need extra bedrooms, bathrooms or larger living areas. These projects often require more detailed planning and structural consideration
Kitchen Extensions
Kitchen extensions are one of the strongest ways to improve family living. A well designed kitchen extension can create a central space for cooking, dining, relaxing and entertaining. MBT Group focuses on layout, light, practicality and finish
What Makes A Good House Extension?
- A practical layout that improves everyday living
- Good natural light through rooflights, lanterns or glazing
- A strong connection between the house and garden
- Careful structural planning
- Consistent finishes between old and new spaces
- A clear understanding of budget and specification
- A build process that is managed properly from start to finish
Planning Permission & Regulations
Some house extensions may fall under permitted development rights, but this is not automatic. The rules depend on the property, the location, previous extensions, size, height, boundaries and whether the home is in a conservation area.
Even where planning permission is not required, building regulations will still apply. This can include structure, insulation, drainage, fire safety, electrics, ventilation and other technical requirements.
MBT Group can help homeowners understand the likely route and coordinate the right professionals where drawings, structural calculations or approvals are needed.
Our Process
Initial Conversation
1
We discuss your property, your ideas, your budget expectations and the type of extension you are considering.
Site Visit
2
We visit the property, review access, layout, existing structure, potential planning issues and practical build considerations.
Design And Planning Support
3
Where required, we help coordinate the design, drawings, structural input, planning route and building control requirements.
Clear Quotation
4
We provide a clear and structured quotation so you understand the works being proposed and the key stages involved.
Construction Phase
5
Our team manages the build, coordinates trades and keeps the project moving in a structured way.
Finishing And Handover
6
We complete the final finishes, review the work and hand over a completed space ready to use.
Frequently Asked Questions
How much does a house extension cost in London?
The cost depends on the size of the extension, specification, structure, access, finishes and whether planning or structural work is required. After a site visit, MBT Group can provide a clearer quotation based on the property and the work involved
Do I need planning permission for a house extension?
Some house extensions can be carried out under permitted development rights, while others need planning permission. This depends on the size, location, property type and previous extensions. MBT Group can help guide you on the likely route before work begins.
Can I live in my home during the extension?
In many cases, yes. It depends on the scale of the work, whether services are being disrupted and how much of the property is affected. We will discuss this during the planning stage so expectations are clear
How long does a house extension take?
A typical single storey extension may take several months depending on size, complexity, approvals, weather, access and finishes. Larger wraparound or double storey extensions can take longer
Does MBT Group handle the full project?
MBT Group can support the process from early consultation through to construction and completion, including coordination with designers, structural input and relevant trades