If you’re considering a loft conversion or extension for your property in Kilburn, Brondesbury, West Hampstead, Queen’s Park, Kensal Green, South Hampstead, Swiss Cottage? – BSD Design & Build are a family-run company with years of experience transforming homes across the region, we take pride in guiding our clients from the first idea to the final finish. Whether you’re planning a dormer, mansard, or full bedroom and bathroom conversion, our trusted team delivers quality craftsmanship using only the best materials. We work closely with you to stay within your budget and timeframe, and we’re always happy to arrange a no-obligation site visit and quotation.
Including Kilburn, Brondesbury, Queen’s Park, Kensal Green, South Hampstead, Swiss Cottage.
Transform your unused loft into a stunning and practical living space. A professionally designed loft conversion is one of the most cost-effective ways to increase your home’s value, enhance your lifestyle, and create much-needed space—without the stress and expense of moving for any of the following property types.
Our clients have a lot to say about our work – please visit our reviews on ok2reviews.com and see what they have to say.
Please contact us to arrange a no-obligation visit for free quotation.
We offer all conversion styles, tailored to your property and budget:
Carving out extra room in Kilburn, Brondesbury, West Hampstead, Queen’s Park, Kensal Green, South Hampstead, Swiss Cottage homes can be challenging, especially where ground space is limited. A loft conversion allows you to expand upwards instead of outwards, delivering benefits such as:
Most UK homes can support a loft conversion, including:
As long as there is enough head height (generally 2.2m+ at the loft’s highest point), we can usually convert the space. Even low roofs can be adapted with solutions like dormers or hip-to-gable conversions.
We manage the entire project from concept to completion:
We visit your home to assess feasibility, discuss ideas, and take measurements.
We create architectural plans, structural calculations, and handle Planning Permission or Permitted Development rules, along with Building Control.
Our team carries out the structural work, insulation, electrics, plumbing, windows, and roofing to full UK regulations.
Plastering, carpentry, decorating, flooring, and final fixtures—designed around your lifestyle.
You receive certificates and approvals for full peace of mind.
We plan everything around your home life to minimise disruption and deliver a clean, well-organised installation.
Many loft conversions fall under Permitted Development, meaning planning permission isn’t always required. However, approvals are still needed for:
We can handle all paperwork on your behalf.
Whether you’re dreaming of a master bedroom, a nursery, a workspace, or a relaxing retreat, we turn empty lofts into beautiful and functional rooms that feel like a natural part of your home.
We’re a trusted designer & builders contractor. Whether you’re a homeowner, landlord, or managing commercial or public buildings, we’re here to deliver.
