Looking for a basement conversion company in London? Create an entertainment space, living space, home cinema room, home office or an entirely new storey with London's basement specialists, Proficiency Design & Build.
With our comprehensive project management, we've helped hundreds of satisfied clients uncover a whole new world through our ground-breaking building techniques.
Down is the new up. In a city where space is a scarce resource, one solution is to dig deep.
In a city of 8.8+ million people across 600 square miles, space is a precious commodity. When extending outward isn't possible, and an upward expansion faces restrictions, our experienced team offers tailored building solutions below ground, from North London to South West London and everywhere in between.
While basement conversions in London can be costly and time-consuming, our professional team has over 14 years of experience in luxury builds and renovations, transforming existing basements into the space of your dreams.
Our expertise ensures your below-level addition is as stunning as your home above. Whether it's a small, bespoke wine cellar with floor-to-ceiling racks, a games room for older teens, or an entire additional storey, our construction and interior design team has built them all.
With our reliable construction services, you can expect property visits to understand your basement space visions, assess what's feasible in your area, and discuss any potential planning restrictions or water table challenges. Choose us for transparent communication from day one.
Basement excavation work in London often requires planning permission, especially if you own a listed building.
Proficiency's team of London architects, designers, and basement contractors handles all of these complexities on your behalf, ensuring a smooth planning application process.
We understand how important it is for you to have a single point of contact when it comes to house extensions and renovations in London. To ensure seamless coordination on each basement conversion project, we assign a dedicated project manager and structural engineer for your peace of mind.
Any type of basement conversion work, including a cellar conversion, requires a party wall agreement. Our experienced team assists with these building regulations, working collaboratively with neighbouring properties to secure the required consent to address your building work needs.
At Proficiency, we adhere to all professional basement building regulations, codes and standards. Our high-quality craftsmanship, on-time project delivery and award-winning designs ensure structural excellence and compliance of your basement project. Every time.
Transform existing basement spaces from dark and damp to stunning, functional rooms filled with natural light.
Our skilled teams of interior designers, architects, and building contractors listen to your vision and handle all planning permission and construction work to transform your dream home ideas into reality.
Whether you have a few bottles you’re proud of or an entire collection, a wine cellar at home is a popular reason for a downward extension.
Design and build the perfect temperature-controlled environment with Proficiency Design & Build today.
A new basement conversion in London uncovers a whole new world of living space possibilities. Gone are the days of cold, dim underground rooms people used to call basements. Nowadays, a basement conversion is a light, spacious extension to your family home.
With lightwells and LED roof lights to illuminate the space, advanced soundproofing methods to enjoy a cinema room in style, or modern broadband technology to create a home office, your options are endless when adding a new living room below ground.
Whatever you envision, our trusted basement company will be there from the initial design concept to final completion.
There is no one-price-fits-all fee for London basement conversions as it is influenced by many factors. Each basement conversion cost is uniquely priced based on your vision, available space, and specific requirements.
Through careful design and transparent budget management, we ensure exceptional value for your investment. We'll keep you informed every step of the way, delivering the unmatched quality, on-time project delivery, and advice you deserve.
We can transform your basement space ideas into any of the following:
Are you ready to discuss your London basement conversions? Discover the difference professional building standards can make.
Contact the Proficiency Design & Build team today to start your basement transformation. We're here to answer your questions and help create your perfect below-ground space.
