Loft Conversions in London
Build Team can help you create your dream space, from design to completion we’ll help you every step of the way.
Why choose a Loft Conversion with Build Team?
More space without sacrificing your garden.
A loft conversion can add significant resale value to your home.
Layouts that fit your existing home.
A smooth process from start to finish.
We handle permissions and ensure full building compliance.
What is a Loft Conversion?
A loft conversion turns an unused attic into a functional living space. Depending on your property type, available height, and desired use, there are multiple styles of loft conversions to choose from, including dormer, mansard, hip-to-gable, and Velux conversions.Popular loft conversion ideas include light-filled master suites, home offices, and cosy guest rooms.
If you're looking to add space without altering the footprint of your home, a loft conversion is an ideal solution.
How to get design the right layout for your Loft Conversion
Your loft conversion should not only be practical but also enhance the overall style and comfort of your home. At Build Team, we focus on clever design to create bright, spacious, and functional lofts. Our design team considers:- Smart configurations and built-in storage to maximise every inch.
- Enhancing natural light with skylights, dormer windows, and glass panels for an airy, open feel.
- Ensuring comfort & insulation with high-performance insulation and ventilation for year-round comfort.
- Creating a smooth transition from your existing home with stylish staircases and interior finishes.
Book a consultation today, and we’ll handle the details while you focus on your dream space.
How much does a Loft Conversion cost?
The cost of a loft conversion depends on factors such as the type of conversion, materials, and structural requirements. Here’s an approximate guide:- Velux Loft Conversion: From £1,500 per square metre
- Dormer Loft Conversion: From £2,000 per square metre
- Mansard or Hip-to-Gable Conversion: From £2,500+ per square metre
At Build Team, we offer cost-effective solutions while ensuring high-quality workmanship.
For a personalised quote, use our loft conversion cost calculator or speak to our team today.
Getting planning permission for a Loft Conversion
Many loft conversions fall under permitted development rights, meaning planning permission isn’t always necessary. However, certain conversions—especially those altering the roof shape—may require approval.Build Team simplifies the process by managing all planning applications, ensuring full compliance with building regulations, and working closely with local authorities for a smooth approval process.
Get in touch today to discuss your project and let us handle the paperwork for you.
Loft Conversion Design & Build Packages
At Build Team, we offer comprehensive loft conversion solutions to bring your vision to life. Our design and buildpackages include:- Concept & Layout Planning: tailored designs that make the most of your space.
- Planning & Building Regulations – Expert guidance on permissions and compliance.
- End-to-End Project Management – A dedicated team handling every stage of construction.
- High-Quality Finishes – Skilled craftsmanship for a stylish and durable result.
Turn your loft into a functional new space. Get in touch with Build Team today to start your loft conversion.
Loft Conversion FAQ
How much does a loft conversion cost in London? +
Loft conversions in London start from around £1,500 per square metre for a Velux conversion, £2,000 for a dormer, and £2,500 or more for a mansard or hip-to-gable. The final figure depends on the type of conversion, the structural work needed and the finishes you choose.
Do I need planning permission for a loft conversion? +
Many loft conversions fall under permitted development, so planning permission is not always needed. Conversions 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 conversion take to build? +
Most loft conversions 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.
What types of loft conversion are there? +
The main types are Velux (rooflight), dormer, hip-to-gable and mansard conversions. The right one depends on your roof shape, the head height available and how much extra space you need. We help you choose the best option for your home.
Will a loft conversion add value to my home? +
A well-designed loft conversion 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.

