Loft Conversions | South West London
Specialist loft conversions across SW London. Dormer, mansard, Velux and hip-to-gable. Fixed-price quotes after a site visit, one team throughout, and no deposit required.
No deposits. Only pay for completed work.
You only pay for work that's completed, valued week by week.
All work is guaranteed for complete peace of mind.
Our trusted team is managed directly by us.
Your project manager keeps you updated every step of the way.
We'll always give you straight advice and advise if savings can be made.
Transform your unused loft space into a beautiful, functional room. Expert craftsmanship, transparent pricing, and seamless project delivery.
Dormer, mansard, L-shaped, hip-to-gable and Velux conversions. We understand the structural nuances and planning requirements of South West London's period homes.
Every project is managed by our own team, with one point of contact, weekly updates, and a fixed-price quote after a site visit, so you know the cost before we start.


The most cost-effective option. Works within your existing roof structure, adding high-quality Velux or similar roof windows for natural light without altering the roofline.
Our most popular option. Extends the rear roof slope to create full standing headroom — typically large enough for a master bedroom with en-suite bathroom.
Perfect for Victorian terraces with a rear outrigger. Extends across both the main roof and the addition below.
Ideal for semi-detached and detached homes. Extends the sloping side of the roof into a vertical gable wall.
The premium option. Restructures the entire rear roof slope to near-vertical, creating maximum internal volume — effectively a full extra floor.

Steel beam installation, roof structure modifications, floor reinforcement, dormer or Velux windows
Building regulations compliant staircase, fire escape provisions, landing modifications, handrails and balustrades
High-performance insulation, plasterboard and skimming, decoration ready finish, flooring installation
Electrical installation, heating extension, work built to building regulations (Building Control and structural engineer fees quoted separately)
We visit, measure up, assess the roof structure, check head height and identify any structural constraints. You get honest advice on what is achievable and the practical next steps.
Don't just take our word for it — hear from homeowners across SW London
"Ben, Tom and Milen are just brilliant. Not only were these guys and their team knowledgeable, hard working and great at communicating but they also pointed out issues that we had not thought of. Every aspect of the work has been carried out to a very high standard."
Clemmie and Jack
Chiswick · Google review
"Ben is a fantastic project manager, he doesn't pass any stress onto his clients. Tom is amazing — everything is possible according to Tom. The end result is phenomenal."
Sophie Weston
Clapham · Google review
"Absolutely brilliant firm. Hired them for a loft conversion. Really professional, great build quality, high quality finish. Great communication throughout. We are thrilled with the result and would hire them again in a heartbeat"
Peter Hughes
Google review
"Tom, Milen & Ben at Bluebird Spaces, 100% delivered on constructing our ground floor extension. The project came out on time, on budget and with customer happiness as their ultimate goal."
Dan & Maddy
Sheen
"Ben and Tom are just finishing a complete refurbishment of my two bedroom flat in Chelsea. They are a joy to work with. Responsive, helpful and always wanting me to get the best possible result. I recommend them wholeheartedly."
Barry Lynch
Chelsea · Google review
"We worked with Bluebird on our kitchen extension project. Highly recommend. They were transparent, easy to work with, had top tradesmen who care about delivering a good build."
Alex Ng
Wandsworth · Google review
"They were knowledgeable and explained each part of the process in terms that I could understand. All the workers are friendly, clean up after themselves every day. I would wholeheartedly recommend them."
Jane Farrelly-Ward
Richmond · Google review
"Using Bluebird for such a big project was the best decision we have made. They are our first call when we find another development."
Tony and Rhys
Fulham
"Tom was brilliant throughout the whole build process. It was a pleasure to be asked for a website review, after all they did for us. We are truly grateful to the whole team for the level of quality and for continually going the extra mile."
Rowan A
Wandsworth
"Bluebird was recommended to me by our local estate agent. Lovely guys and so pleased decided to go with them. Tom, Milen and the team on site were so professional and couldn't have been more helpful. Very happy clients."
Emma and Tom
Richmond
"We simply couldn't recommend Ben, Tom and Milen enough. The team was amazing for the duration of our ground floor project, which involved gutting and reconfiguring the lounge, kitchen and utility room."
Andrew Cork
Google review
"We used Ben and his team to completely refurbish our house as well as create a new en suite bathroom. Being an older house we had several unexpected issues but Bluebird Spaces managed to still get everything finished on time…"
Verena Peternell
Google review
We've completed loft conversions throughout southwest London, from Victorian terraces in Wandsworth to period townhouses in Chelsea. Every borough has its own planning quirks — conservation area rules, roof-height restrictions, party wall requirements — so we've put together a dedicated page for each area we cover, with local planning guidance specific to that location. Before you build, see our guides to lawful development certificates for lofts and the party wall notice timeline.
Dormer and hip-to-gable conversions for Wandsworth's Victorian terraces
Specialists in Battersea's conservation area requirements
Mansard and dormer conversions for Clapham's period properties
Maximising space in Putney's semi-detached and terraced homes
Sympathetic conversions for Chelsea's listed and period buildings
Navigating Richmond upon Thames planning for conservation areas
Rear dormer and side extensions for Fulham's terraced streets
Conservation-area specialists for Wimbledon's period homes
Dormer conversions suited to Balham's Victorian housing stock
Cost-effective loft conversions for Tooting's terraced properties
Free consultation. Clear, itemised quote. No deposit upfront.