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Home Extension in London: A Checklist Before You Start

Getting an extension done is a popular way to add extra space in London. Many of us have spent a lot of time scrolling through Pinterest or Houzz, saving pictures of our dream extensions. Creating mood boards is a good start; you can define your taste and give a starting point to your architect. Though sorting pictures of extension projects is a good base, there are numerous things you have to decide before starting a home extension project.

Traditional vs Contemporary

There is always debate whether to go with a traditional extension that fits the features of the dwelling or choose a modern approach.

You can create a dramatic effect with modern home extensions; large glazing, minimal approach, clean lines, double-heights. If you want an open space feeling, being closer to nature and your garden, and having an uninterrupted view of it, this type of extensions is a good choice for you.

Credit: A double-heigh glass extension to London house by Lipton Plant Architects

If you are looking for a more defined style with crittall windows, timber panelling and an exposed brick facade, we recommend a traditional home extension.

Credit: Traditional rear extension by Bradley Van Der Straeten

It depends mainly on your personal taste; however, you also need to consider the exterior of your home and what is a better fit. If you are looking for something unique, we recommend mixing the traditional materials with contemporary elements.


The external material of the extension is decided by you and the architect. Whilst it mainly depends on your taste, some local authorities prefer to work with materials matching the façade of the existing building.

If you sign up with a design and build company, they will consult with the planning authorities and help you decide what material to choose.

Credit: Different home extension exterior materials from Pinterest

You can choose materials that align with the exterior design of the dwelling, such as brick, stale, render, timber or stucco.

If you want a more modern, contrasting effect, you can choose more unusual materials like concrete, zinc, content, copper or unpainted timber.

How much glass

Glass is a very popular choice when it comes to extensions for a reason; it ensures that the interior is filled with light.

Though glass box extensions help maintain light levels, you have to consider how much glazing to use. If it is installed incorrectly, you can run into many issues like overheating in summer and loss of heat in winter. If you sign up with a construction company, your architect should consider these elements when designing your extension.

Garden space

Extensions come in different shapes and sizes, especially if you choose to extend to the rear side. You have to consider how much space you want to sacrifice as the additional part of your house will be extended to the garden. If you go with a contemporary glass box extension, you will have an unbothered view of your garden, so you might want to consider redesigning your garden.

We recommend a home extension design that links the home to the garden with a seamless design.

Credit: Garden of a Victorian town house by Landscape & Garden Design

Take away:

  • Decide between traditional and modern

  • Decide on materials

  • Decide how much glass do you want

  • Consider your garden space and design

The result of the home extension will depend on your goals, style, as well as on the design, and layout of your existing house. If you are planning a home extension in West London areas like Chelsea, Belgravia, Kensington, Putney, Mayfair, Holland Park, feel free to book a site visit and consultancy with us. We are happy to help in creating your dream home.



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