Rubicon Lofts designs and builds exceptional loft conversions across South West London and the KT postcode area. From first survey to final finish — we handle everything.
Every loft is different. We assess your roof structure and design the right conversion type — maximising space, natural light, and value.
The most popular option in SW London terraces. A flat-roofed extension to the rear slope adds full headroom and a proper bedroom with ensuite. Maximum usable space with clean lines.
Ideal for semi-detached and end-of-terrace homes. We extend the hipped roof to create a vertical gable wall — dramatically increasing the footprint of your new loft space.
A premium solution offering the most floor space possible. Near-vertical rear walls with a flat roof — common in Victorian and Edwardian properties throughout Wimbledon, Kingston and Raynes Park.
Where planning is sensitive or budgets are tighter, Velux conversions work within the existing roof structure. Clean, fast, and often permitted development — no planning permission needed.
Two dormers combined into one large L-shaped structure — perfect for Victorian end-of-terrace and semi-detached properties. Creates multiple rooms in a single build, including master suite, bedroom and bathroom.
Full service from architect drawings and planning applications through to structural engineering, building regulations, and completed handover. One point of contact throughout your entire project.
We visit your home, assess the roof structure, discuss your goals and give you an honest feasibility assessment and indicative cost — completely free of charge.
Our architects produce full drawings. We handle planning applications, party wall notices, and building regulations submissions. You're kept informed at every step.
Before a single nail is driven, we hold a detailed pre-start meeting at your home. Schedule of works, material choices, scaffold arrangement, and site access — all agreed upfront.
Our experienced team executes the build to programme. Building control sign-off, fire safety report, and a full clean handover. We don't leave until you're delighted.
We concentrate exclusively on South West London and the Surrey KT postal areas — meaning our teams are never overstretched, always local, and know the planning rules, building inspectors and street layouts intimately.
Covering Balham, Streatham, Tooting, Wandsworth, Wimbledon, Raynes Park, Clapham, Brixton, and surrounding areas.
Kingston upon Thames, New Malden, Surbiton, Tolworth, Esher, Teddington, Thames Ditton, and the surrounding Surrey area.
From Clapham terraces to Esher semis — we've converted lofts across every property type in SW London and Surrey. We know what works.
One team, one contract, one point of contact. No juggling architects, builders and project managers separately.
We know the local planning departments, building control officers, and structural engineers. This means faster approvals and fewer surprises.
No hidden extras or inflating bills. Your contract price is agreed upfront — variations are discussed transparently and only proceeded with your approval.
Full compliance from day one. We manage building regulations, fire safety reports, and final certification as standard — not as extras.
Rubicon Lofts was founded on a simple principle: treat every project as if it were our own home. That means being honest about what's feasible, communicating clearly throughout the build, and not walking away until the job is right.
We're a tight-knit team of experienced builders, carpenters, and project managers. We don't subcontract to strangers — the same faces you meet at your pre-start are the ones on site every day.
Most of our work comes through referrals from previous clients. We think that says more about our quality than any marketing could.
Ready to explore what your loft could become? Get in touch for a free, no-obligation consultation. We'll visit your property, assess the options, and give you honest advice — with no pressure.