Loft Conversions

Create Your Ideal Space Above with Loft Conversions

Lofts are often under-utilised spaces that hold huge potential. At Gosai Construction, we convert lofts into beautiful, useful rooms — adding space, comfort, and property value across London and Greater London.

Designed Around You

Think bedrooms, studies, playrooms, or entertainment areas — we design loft conversions to serve your needs. Our team addresses structural requirements, insulation, internal layout, natural light, sound control, and safety so your loft becomes a polished, practical, and comfortable part of your home.

Why Choose a Loft Conversion with Gosai?

Maximised extra space without moving house
Increased property value — often up to 20-25% in London
Expertise in various conversion types: dormer, mansard, Velux, hip-to-gable
Ensured insulation, safety, and compliance with building & fire regulations
Turnkey delivery: from design through to handover

Built to Last

Solid construction, high-quality materials, and careful finishing are at the core of our loft conversions. Robust insulation, sound proofing, and expert structural work combine to ensure comfort, durability, and long-term usability even in older homes.

Frequently asked questions

Do I need planning permission for a loft conversion?

Sometimes yes — depending on your property type, location, and conversion size. We advise and manage planning permissions where needed.

Which conversion type suits my home best?

It depends on roof structure, space, head height, and council rules. We assess your property and recommend the best option.

How long will it take to complete?

Standard loft conversions may take 8-12 weeks; more complex builds may run longer.

How will insulation and ventilation be handled?

We use modern insulation methods and ensure proper ventilation so the loft is warm in winter, cool in summer, and free from moisture issues.

What about stairs, access and impact on lower floors?

We plan access carefully so stairs are functional, safe, and in keeping with the rest of the home. We also manage impact on lower floors during construction.