Our Services for Kitchen Extensions

Discover our London kitchen extension services and find out how our architects can help you design a kitchen side extension for your home.

A single-storey kitchen extension in London offers an exciting opportunity to enhance your home with a vibrant and stylish new space. As the central hub of your daily activities, the kitchen holds significant importance, with the average adult spending over an hour there each day. A London kitchen extension can significantly increase your home’s value, unlock its potential, and provide a personalised, practical, and comfortable environment.

Extension Architecture specialises in single-storey extensions for your kitchen in London, offering tailored solutions to improve your kitchen design and build. By choosing an extension, you enhance your property’s value and create a functional and cosy space within your home.

There are various types of kitchen extensions available in London, including kitchen side extensions and open-plan designs. Our expert kitchen designers in London will guide you in selecting the best option to maximise your kitchen space, ensuring seamless integration with your existing home. From initial designs, including 3D visualisations, to construction, our kitchen extension builders can provide comprehensive solutions to meet all your requirements. Contact us today to discover how we can transform your kitchen design and build with our exceptional London kitchen extension designs. provide an opportunity to blend indoor and outdoor living, creating a smooth transition between the two spaces.

Our Single Storey Extension Projects

Kitchen Extensions

[MM_Readmore]

Kitchen Extensions FAQs

What’s the cost of a Single Storey Kitchen Extension?

If the design aspect of the project can be fun on one side, coming up with general costs and a budget can be challenging. The available cost of your extension will ultimately depend on your brief. However, some general costs for a single-storey rear extension can be summarised as follows:

– UK Average sqm: £ 1,200

– London Average sqm: £ 1,600

These are general costs for an average quality extension. The high-end project costs in London can go up to £2,300 sqm.

A further breakdown of general costs can be summarised as follows: The use of your extension will also impact prices. Having an idea of how much you are willing to spend on a new kitchen or a new bathroom will be crucial when planning the cost for your unique project. Bathrooms and kitchens are trickier to budget than a bedroom or a living room as there is plumbing to consider and appliances and fittings. The cost of adding a kitchen to your extension will start at around 10,000 £ for a cheaper kitchen design. The final price will depend on the quality of the materials and appliances. Adding a bathroom to the project will increase the cost by about 5,000£, but this will also depend on the type of finishes you choose.

Rule of Thumb: As there are many variables to the costs of your project, it is good to have a general idea of how the budget will be spread and how the costs for professionals will impact the total cost: Architects London average fees 10% / Administration fees: 1% / Structural engineer: 4% / Surveyors: 3% / Contractors:30% / Materials 20% / Fittings 5% / Glazing: 15% / VAT 20%

Do I need planning permission for a Single Storey Kitchen Extension?

If you live in a terraced or semi-detached house in 2020, the good news is that Local Planning Authorities have relaxed the rules and allow extensions to go to 6 meters. If you live in a detached house, single-storey rear extensions can be up to 8 meters in depth. Just be aware that if your property type is a flat, maisonette or in a conservation area, then you will need full planning permission.

Side Extensions: Side extensions fall under permitted development if they do not extend more than half the width of the original house. You can extend a maximum of 3 meters if it is a single-storey extension and does not extend past the front elevation.

Will a single-storey extension add property value?

Research carried out by Nationwide shows how home improvements and home extensions can add significant value to your property. Adding a double bedroom to your house and an en-suite can increase its value by 23%. Adding square footage with a kitchen extension and a single storey rear extension more generally will boost the value of your property by 13%.