We’ll be able to manage your entire project from architectural design through to project management and building.

Explore how we can extend your house and kitchen.

Design & Build – House Extensions

We will help you design, manage and build your House Extensions.

With property prices in London at now astronomical rates, many homeowners craving extra space are asking themselves if it’s really worth purchasing a new house. Instead, many are deciding to stay put in their homes and add house extensions. Such a paucity of space and land has ushered in a wave of new house extensions in the capital, which has, in turn, catapulted property values even more.

If you already have your own plan on what you want to be done to your home, and our architectural designers will take this on board, but they will also have brilliant ideas of their own that you will not have even considered.

Our architectural designers have gained so much experience in terms of interior designs as well as extensions, so they know exactly what to do with spaces and how to make the most out of them.

Also, house market research shows that house extension can propel the value of a property by up to 20% in some parts of London, which is exactly why many homeowners decide to stay in their area.

“As a renovation company operating in some of the most affluent parts of London, most of our clients are more than happy with their location, and have no intention of moving out”,

explains the managing director of APT Renovation.

“House extensions are a brilliant way to boost space, improve the quality of life and add tremendous worth to a property”.

Shows like Grand Designs have revealed to the masses the real extent of what modern architecture can bring to a property. In terms of house extensions, not only is the scope endless for creativity and design, but the same is true for functionality. Homeowners are becoming more sophisticated in their tastes;

“We have seen a real movement towards elegant modernism, and this reflects the lifestyle aspirations that are prevalent across the city”.


kitchen and house extension

The added space that house extensions provide mean that family members are more likely to want to spend time in their actual home rather than treating their property as just a place to rest their head at night. They can be modified into rooms of relaxation and entertainment, fitted with integrated sound systems and technology. With more and more people working remotely, the study is turning out to be a necessity for digital entrepreneurs, allowing individuals to make the most out of their productivity.

Feel free to browse our Testimonial and Project Portfolio pages.

The Process

We can assure you that you will be able to relax knowing that your ideal home will be extended to the highest standard achievable.

From our first consultation / Site Visit with Pre Contract Manager through to the final completion and handover of the project, you will have a dedicated team of builders and design & build architectural designers that’ are totally eccentric to your success.

Here at APT Renovation, we like to think that we are very different from the usual run of London building contractors. That’s partly down to the fact that we are one of the very few firms that choose not to ask for deposits or upfront payments. We get work started for you (including scaffolding, skips and purchase of materials), and you only start making payments to us once we are underway and you are happy with the progress so far.

Our team will be at hand for you every step of the way to ensure that your project runs smoothly, and in the way that you envisioned – offering full transparency in the process. The happiness of our customers is of paramount importance to us, which is why pride ourselves in bespoke customer care, and attention to all the fine details.

We are happy to work on projects across London from as little as £50,000 and are able to provide a full service for jobs right up to £3m+. We also offer a comprehensive architectural design and visualisation service.

Please contact us with any questions you might have. Call us today on 0207 223 6417 to talk about your plans and your vision for your home.

Who we are

APT Renovation – Design & Build offer full-service design and build services tailor-made to your personal needs, and undertake residential renovation and remodelling projects delivered and managed by a team of

• Project managers

• Architectural Designers

• Design consultants

• Quantity Surveyors

• Structural Engineers and Professional Builders.

We are one of the very few firms that choose not to ask for deposits or upfront payments.

We take care of everything

APT Renovation offers full-service design and build services:

• Architectural Drawings

• Planning applications

• Building Control

• Project cost estimation

• Detailed architectural CAD / 3D designs

• Construction

As well as a detailed specification of fine materials and finishes.

What Our architectural designers Can Do For You?

One of the benefits of being an all-in-one team is that our architectural designers will work around your budget with you, and this information will be shared throughout the design & build team. This means total clarity for you along the way, rather than dealing with third-parties and the risk of getting your wires crossed. We will even advise you on how to avoid making any unnecessary costs.

If you happen to have a picture of some interior design that you may want to emulate, then you can take that straight to our architectural designers and we can replicate this as much as possible, parameters permitting. Our architectural designers know where to source every type of material and have access to all the specialist suppliers around.

At APT Renovation, our architectural designers do not miss a thing, every little detail is of paramount importance. We take pride in designing and building your dream home, and we leave no stone unturned. Our architectural designers go the extra mile when designing your home project, with every millimetre accurately covered.

The harmony of a household has a direct correlation to the amount of space a property has, particularly if the family is large. The more spacious a property, the less likely it is that petty feuds will break out of who is using what and what area is being occupied. An extra bathroom can change the whole dynamic of a household and removes the strain of having to delegate time and monitor how long one spends relaxing in the bathtub. Not only that, but an extra bathroom can add up to 6% in value.

Glass Extension Designs




As swathes of new luxury modern apartments sweep the city, there’s also been a newfound penchant for modernising existing properties with similarly designed house extensions. These glass designs represent the new trend in contemporary architecture and can reinvent living spaces by facilitating large amounts of natural light. Not only does this brighten up the place and make it more inviting, but it also gives the illusion of even more space.

Many properties deceptively come across as being small because of the layout, so knocking down an internal wall or two is an incredibly effective way to increase the interior space. Adding 10% of new floorspace can fetch 5.1% more value on the market. This can also create a contemporary feel, which is why the majority of modern properties incorporate open-plan layouts, with fresh and airy elements. The two pillars for modernism are space and light, and this is progressively being reflected in the ambitious house extensions that are taking place throughout the capital.

Kitchen Extensions


rear house extension project


Kitchen extensions have become the most popular types of home improvements in London properties. A new kitchen can add up to 6% in value to a property and is sometimes the first thing people look for when buying. As people become more infatuated with their culinary habits, the kitchen area is becoming one of the focal social spaces as opposed to the front of the house. This is why open-plan kitchen diners are now high in demand and are often adjoined to the rear end of the house. “Our bespoke joinery specialises in bi-folding and sliding doors, which are a fantastic way to seamlessly connect to the garden area”, says Pepaj.

Rear Extension

rear extension takes full advantage of the outside space and boosts the indoor capacity by integrating the flooring or materials that can be found in the garden. Shifting the extraneous space from the outside to the inside can result in a significant increase in the liveable room, thus encouraging household members to congregate more in this part of the property. Having this type of extra space is not only more practical for families, but is befitting of the type of lifestyle that many people crave these days.

James Dickson and his wife Nicky of Lysia Street were unwavering in their desire to remain in their Fulham home. They did, however, want to boost the space in their property, most notably by way of a refurbished kitchen that allowed easy access to the garden area. APT Renovation was able to give the property a full renovation and implement a stunning contemporary kitchen, complete with state of the art skylights to boost the overall natural lighting.

Conservatories and orangeries extensions

Conservatories and orangeries are the most cost-effective of all house extensions and are both similar in the sense that they also merge the exterior with the interior. They are versatile in terms of functionality and can be made into dining rooms, studies, garden rooms, sunrooms and children’s rooms, to name a few. Both options allow residents to enjoy the views a garden has to offer under relaxing confinement, regardless of what the weather is like.

Generally, single-storey extensions will go ahead without hiccups, although in some instances, planning permission may be required. When it comes to multi-storey extensions, there is a whole lot more to consider, including the impact the works will have on neighbours. This type of house extension can be very protracted and can incur the wrath of complaints and opposition from those in the vicinity. The larger the project, the more scrutiny it will come under, as the works can result in less privacy for neighbours, or even deprive them of sunlight. This is why obtaining building control permission is mandatory, and planning permission is almost a certitude.

Multi-Storey Extensions

Multi-storey extensions represent the most radical of transformations of a property and can make way for extra bedrooms and en-suite bathrooms, perfect for a growing family. Creating a new bedroom of 13 square metres has the potential to raise the value of a terraced property by up to 10%, and two new bedrooms in a semi-detached home are likely to see a 13% increase in the overall worth. Homeowners that already have three bedrooms can add up to 10% in value if they decide to go for a fourth.

Some of our Ongoing Extension Projects.

ongoing house extension project twickenham tw9
ongoing house extension project fulham sw6
ongoing house extension project west norwood se27
ongoing house extension project wimbledon sw19

Start the process of designing and building house or kitchen extension. Call today!

Our design and construction team will help you create a space you will love, delivered on time and on budget.

Let’s Talk House & Kitchen Extensions

Call Us: 0207 223 6417

Email Us: info@aptrenovation.co.uk

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single storey side extension london


single storey rear house extension


wrap around house extension


double storey side house extension london


A Building Inspector will visit at regular stages throughout the project, their job is to make sure that we are adhering to all the latest building regulations. Upon completion of works The Building Inspector will make a final visit and you will be issued with a completion certificate.


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WE ARE London’s Leading Home Extension Company