Design-led construction across South West & West London
Extensions, Loft Conversions & Renovations in South West & West London
Considered residential building projects, managed from first survey to final handover.
No deposits. Only pay for completed work.
No deposit
You only pay for work that's completed, valued week by week.
Guaranteed work
All work is guaranteed for complete peace of mind.
Vetted & managed trades
Our trusted team is managed directly by us.
Always in touch
Your project manager keeps you updated every step of the way.
Honest advice
We'll always give you straight advice and advise if savings can be made.
Our services.
Four core services across South West and West London. Every project is managed and built by our own team.

Loft Conversions
Dormer, mansard, hip-to-gable and L-shaped lofts. More space, more light.
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House Extensions
Rear extensions, side returns and wraparounds, designed and built end-to-end.
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Flat Renovations
Complete flat gut-and-refit by our own in-house team. Fixed-price quote after a site visit, one contact.
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House Renovations
Full house refurbishments across London. Every room, every detail, done properly.
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Tom and Milen.
We met in South West London over ten years ago, each working in residential construction.
We kept running into the same problem: homeowners getting vague quotes, watching budgets creep, and dealing with builders who disappeared mid-job. So we set up Bluebird Spaces to do it differently.
Every project gets one team, one point of contact, and a fixed-price quote after a site visit, before we lift a finger. No shortcuts. No inflated promises. Just work we're happy to put our names to.
What our clients say
"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
A clear process from first call to final handover.
Five stages. Each one with a defined output, a fixed timeline, and a single point of contact.
Initial call
A short conversation to understand what you're hoping to achieve and confirm we're a good fit.
Site visit and brief
We come to your property, walk through the space with you, and write up a clear brief.
Fixed-price quote
A fully itemised fixed-price quotation after the site visit, reviewed with you in person before anything is signed.
Build
Our team manages the project from setup to completion. Daily updates via your client platform.
Handover and aftercare
Final walkthrough, snagging, and a six-week aftercare visit once you're back in your home.
Renovations across South West and West London.
We focus on London's premium residential postcodes — the areas where in-house project management makes the biggest difference.
Also covering Putney, Holland Park, Earlsfield, Southfields, St John's Wood, Maida Vale, and Mayfair.
Frequently asked questions
Ready to talk about your project?
Free site visit, then a fixed-price quote. No obligation.







