House Extensions
Through a unique combination of engineering, construction and design disciplines and expertise.
Welcome to Studio20 Architects
Our team at Studio20 Architects helps you maximise your home’s potential with beautiful house extensions London families love, designed by expert house extension architects London homeowners trust. We manage everything for you throughout the entire house extension design and build process, from the initial concept and securing planning permission and documentation, to selecting contractors and overseeing site supervision.
As a RIBA-chartered architectural and planning practice, our team of house extension architects in London maximises space and value for clients across London and the South East. Our talented architects deliver thoughtful, imaginative designs tailored to your lifestyle and budget.
Our house extension design services include concept design, planning consultations and applications, building regulations, structural calculations, management of the tender process, contract administration, and site supervision.
Book your free consultation today and start designing your dream space.
Reasons to have a House Extension
London house extension projects are becoming a popular choice, where space is limited and moving homes is often too expensive or impractical. A well-planned house extension gives you more room to live, work and relax. It does more than increase your floor area.
It improves how your home feels and functions every day. With a thoughtful design, you can create bright open spaces, add extra rooms for work or guests and make your layout more useful.
A quality extension also increases the value of your property while keeping the original character of your home. Our goal is to help you unlock the hidden potential of your house with a design that is both practical and beautiful.
Types of House Extension Designs We Offer
We create tailored extension designs to suit every property and lifestyle. Whether you live in a period home or a modern build, our team delivers solutions that enhance space, light, and comfort. We offer single-storey rear extensions for brighter open-plan kitchens, double-storey extensions for extra bedrooms or larger living areas, and wrap-around extensions to maximise unused space.
We also design side return extensions to open up narrow areas and improve flow. When outward expansion is limited, our basement and loft conversions provide innovative ways to add usable space while maintaining the character of your home.
Planning Permission for a House Extension
As a trusted and contemporary architecture practice, we make planning for your London house extension clear and straightforward. Our goal is to remove the stress and complexity by managing the entire process on your behalf.
Our team has deep knowledge of UK planning law and extensive experience in designing house extensions for London homes, including terraces and conservation areas. We provide clear insights and strategic guidance so you can secure approval with confidence. From preparing and submitting your drawings to working closely with Local Authorities, we ensure your plans meet all statutory requirements and address any potential challenges. Contact us to learn more about how we support you through every stage of your house extension project.
Why Choose Our House Extension Architects in London?
If you’re planning a house extension, get in touch to book a free consultation at our studio. Let us show you how we can transform your home and bring your vision to life.
Creating a London house extension requires experience, local planning knowledge and clear guidance. At Studio20 Architects, we specialise in transforming London homes with rear, side, wrap-around and double-storey extensions that improve space, light and flow.
With a strong understanding of local councils and years of completed projects across London, we manage surveys, design, planning permissions and technical drawings to ensure your extension is delivered smoothly and adds long-term value to your home.
Highly Experienced House Extension Architects
Dedicated Planning Consultants for Extensions
Extension Project Management
Get A Free Quote For Your Home Extension Project
Whether you already have some ideas about what you want or you would like to find out more about your options, feel free to contact us. We will arrange an initial consultation at a time that is convenient for you.
During the consultation, our experts will listen to your ideas and give you professional advice on how you can transform and extend your home. We will also provide you with a free quote for your project. Please give us a call or send us an email to get in touch with us.
House Extension London FAQs
You will also likely require planning permission for a house extension in London, most particularly when you intend to make significant changes in your property in terms of structure or appearance. The Local Planning Authority (LPA) reviews your submitted proposal to ensure it complies with local planning policies, preserves the character of the area, and protects any heritage assets. The decision process usually takes around 6 to 8 weeks, and most LPAs charge a fee for providing pre-application advice.
Smaller projects can, however, be covered by the Permitted Development Rights, which grant some house extension designs without the full approval of planning.
Our Studio20 Architects team will be able to evaluate your property and recommend whether your housing extension design should be planned or not, so that your project is aligned with all local regulations and planning requirements.
Yes, a design house extension in London can significantly add to the market value of your property, and this value may go up to 15-25, again depending on the quality of design and finish. Other than the monetary reward, a house extension will add functionality and comfort that will make your living environment, which really adds value to your daily life.
Absolutely. In Studio20 Architects, sustainable design is applied to each of our house extensions in London projects. The architects of the house extension, London, pay attention to insulation, glazing, ventilation, and materials to enhance the performance of energy consumption and lower the cost of running in the long term.
It can be a house extension that is eco-friendly in its design, e.g,. Solar panels, green roofs, or natural lighting designs, but we will make sure your house extension design will be comfortable and reduce environmental degradation. The outcome is a London house extension that not only appears exceptional but also works efficiently in the next few years.