Loft Extensions in London
With a well-designed loft extension, you can add an extra bedroom, a stylish home office, or a quiet retreat, all within your existing space.
Why choose a Loft Extension with Build Team?
Add extra room without the upheaval of moving.
A well-designed extension can boost your home's market price.
Custom layouts to match your lifestyle and needs.
A smooth process from planning to completion.
Guidance on planning permission & regulations.
What is a Loft Extension?
A loft extension turns your attic into a bright, functional space—adding valuable square footage and boosting your home’s comfort and value. Popular types include dormer, mansard, hip-to-gable, and Velux conversions, each offering unique benefits depending on your property type and needs.A thoughtfully designed loft extension floods your home with natural light, improves insulation for lower energy bills, and creates a comfortable living space tailored to your needs. At Build Team, we specialise in crafting functional loft spaces that complement your lifestyle, with a smooth process from concept to completion.
How to Design the Perfect Loft Extension Layout
A loft extension should enhance your home’s usability while maintaining a cohesive design. At Build Team, we take a tailored approach to ensure your new space is both stylish and practical.Our expert team will:
- Design smart layouts that make the most of every inch.
- Create a bright, airy feel with strategically placed windows and skylights.
- Integrate smart storage solutions.
- Carefully consider insulation and ventilation solutions to keep your loft comfortable year-round.
Ready to bring your dream loft extension to life? Explore our past projects for inspiration, or schedule a free consultation with our experts today!
How much does a Loft Extension cost?
The cost of a loft extension varies depending on factors like size, design complexity, and materials. Here is a rough guide:- Basic single-storey extension: From £2,000 per square metre
- High-specification extension: From £2,500 per square metre
- Luxury designs: £3,000+ per square metre
At Build Team, we prioritise cost efficiency without compromising on quality. Our expert project managers ensure smooth execution, while our network of trusted suppliers provide high-quality materials at competitive prices.
For a tailored quote, use our extension cost calculator or contact our team for a personalised quote.
Getting planning permission for a Loft Extension
Worried about planning permission? Navigating the rules can be tricky, but with Build Team, the process is straightforward. Many loft extensions qualify as permitted development, meaning no formal planning permission is needed. However, if your project requires approval, we take care of everything—from measured surveys and expert planning advice to detailed drawings and application submissions.We liaise with local authorities to maximise approval chances and ensure your project meets all building regulations. Get in touch today, and let us take care of the paperwork for you.
Loft Extension Design & Build Packages
At Build Team, we offer tailored design and build packages to suit your specific needs. With years of experience in delivering high-quality, functional loft conversions, we ensure every detail is meticulously planned and executed.Our comprehensive design & build packages include:
- Concept Design – Expert guidance on layout, aesthetics, and functionality.
- Planning & Permissions – Assistance with obtaining planning approval and building regulations compliance.
- Project Management – A dedicated team overseeing every stage of your loft extension.
- Quality Craftsmanship – Skilled tradespeople delivering impeccable finishes.
Ready to start? Let us bring your loft extension to life. Get a free consultation today and take the first step toward a functional new space.
Loft Extension FAQ
How much does a loft extension cost in London? +
Loft extensions in London start from around £2,000 per square metre for a basic build, £2,500 for a higher specification and £3,000 or more for a detailed design. The final figure depends on the type of extension, the structural work needed and the finishes you choose.
What is the difference between a loft extension and a loft conversion? +
The two terms are often used to mean the same thing: adding usable rooms in the roof space. In practice a loft conversion usually refers to converting the existing roof, while a loft extension can also involve altering or building out the roof, such as a dormer or mansard. We advise which approach suits your home.
Do I need planning permission for a loft extension? +
Many loft extensions fall under permitted development, so planning permission is not always needed. Extensions that change the roof shape, such as a mansard, and homes in conservation areas usually need a full planning application. We assess your project and advise which route applies.
How long does a loft extension take to build? +
Most loft extensions take between 8 and 14 weeks on site, depending on the type and complexity. The design and planning stage beforehand typically adds a few months, so it is worth starting early.
Will a loft extension add value to my home? +
A well-designed loft extension is one of the most effective ways to add both space and value, particularly when it adds a bedroom and en-suite. The exact uplift depends on your location and the quality of the finish.
