Loft Conversions  |  House Extensions  |  Flat Renovations  |  House Renovations

    Loft Conversions, House Extensions, Flat Renovations & House Renovations across South West London

    We deliver high-quality loft conversions, extensions and renovations with a clear process, honest advice and complete peace of mind.

    No deposits. Only pay for completed work.

    Request a quote

    Tell us about your project and we'll be in touch to arrange a consultation.

    Your details are secure and will never be shared.

    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.

    What our clients say

    What our clients say

    ★★★★★ Rated 5.0 on Google

    "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, 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."

    Clemmie and Jack

    Chiswick

    "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

    Our commitments

    What you can expect from us.

    Five commitments we make on every project. No exceptions.

    01

    Fixed price from day one

    Your quote is your contract. No surprises, no additions, no excuses.

    02

    Properly structured and scheduled

    Every project gets a detailed programme before a single tool is picked up. You know what is happening, when, and why.

    03

    A dedicated client platform

    Daily logs, progress photos, the live schedule, and all your documents — accessible from your phone at any time. No chasing for updates.

    04

    No false expectations

    We tell you what is realistic before we start, not halfway through. If something isn't achievable in your budget, we say so upfront.

    05

    Six-week aftercare visit

    We come back after handover. Because the job isn't done when the scaffolding comes down.

    How we work

    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.

    01

    Initial call

    A short conversation to understand what you're hoping to achieve and confirm we're a good fit.

    02

    Site visit and brief

    We come to your property, walk through the space with you, and write up a clear brief.

    03

    Fixed-price quote

    A fully itemised, fixed-price quotation. Reviewed with you in person before anything is signed.

    04

    Build

    Our team manages the project from setup to completion. Daily updates via your client platform.

    05

    Handover and aftercare

    Final walkthrough, snagging, and a six-week aftercare visit once you're back in your home.

    Tom and Milen — founders of Bluebird Spaces
    About us

    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 before we lift a finger. No shortcuts. No inflated promises. Just work we're happy to put our names to.

    FMB accredited
    Fully insured
    Fixed-price contracts
    Where we work

    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.

    FAQ

    Frequently asked questions

    A typical rear dormer loft conversion takes 8–12 weeks from start to completion. Velux conversions can be faster at 6–8 weeks, while mansard and L-shaped conversions may take 10–14 weeks depending on complexity. We provide a detailed programme before work begins.

    Most rear dormer and hip-to-gable conversions fall under Permitted Development and don't require planning permission. However, mansard conversions always require planning approval, and properties in conservation areas may have restricted PD rights. We assess your planning position for free before you commit.

    We work across SW and West London including Clapham, Wandsworth, Battersea, Putney, Wimbledon, Fulham, Richmond and Earlsfield.

    We provide a fully itemised fixed-price quote before any work begins. The price we quote is the price you pay — no hidden costs, no provisional sums.
    Get in touch

    Ready to talk about your project?

    Free site visit. Fixed-price quote within 48 hours. No obligation.