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Precision. Crafted Homes.
High-end residential extensions and renovations across South London — built to the highest standard, with a fixed price agreed before any work begins.
High-end residential extensions and renovations across South London — built to the highest standard, with a fixed price agreed before any work begins.
"Your home is where memories are made and visions become reality. We take that seriously."
Fellner Construction was founded by a seasoned professional who began his career as a carpenter and has spent more than 20 years immersed in every dimension of UK residential construction — from site carpenter through to project manager for established London firms.
We work with a select number of clients each year. This is a deliberate choice — not a constraint. It means every project receives our complete and undivided attention, from first conversation to final handover. We take full responsibility for every element, and we never cut corners.
Every commission approached with the same standard of precision and care — from planning and structural coordination through to final finishes.
Rear, side return, double-storey, and wrap-around — all planned and managed from first consultation through to Building Regulations sign-off.
Explore →Whole-property transformations — structural, mechanical, and aesthetic — managed under a single fixed-price contract with one accountable team.
Explore →Full refits, wet rooms, ensuites, and precision renovations. Every grout line, every fixture, every detail — considered and executed with care.
Explore →Complete refits, open-plan reconfigurations, and all associated trades — coordinated end to end with a single point of contact.
Explore →Built-in furniture, fitted wardrobes, custom joinery — we take on a select number of bespoke commissions each year. Get in touch to discuss your idea.
Explore →Interior and exterior painting and decorating to the highest standard — from preparation and priming through to flawless final coats.
Explore →
South London · Full renovation · 6 phases
A wholesale transformation of a London residential property — from ageing fabric and outdated services to a fully reconfigured, energy-efficient home with new living space, two new bathrooms, and a converted garage.
Six phases. Every trade our team. One fixed price agreed before a single brick was disturbed.
From your first enquiry to the moment we hand over your keys — every stage planned, communicated, and executed to the same meticulous standard.
We meet to understand your vision, requirements, and budget — no obligation and no pressure.
We work alongside your architect and structural engineers to programme the build and coordinate all approvals — so everything is in place before we begin.
A detailed written quote agreed before any work begins. The price you see is always the price you pay.
Our team carries out every element, with a dedicated project manager keeping you informed throughout.
A final walkthrough, your satisfaction confirmed, and all documentation and warranties delivered.
"Good old-fashioned quality service with modern day efficiency. I can recommend Fellner Construction with absolutely no reservations." — Gordon, DA12
"These guys are fantastic — very professional and excellent attention to detail. They worked very efficiently, talked through all the options, and always ensured I was happy with the results."Wes, TN2
"The quality of finish, professionalism and complete integrity has been second to none. The team arrived early and worked late to keep on schedule. 10/10."Rachel, CR3
"As a professional project manager, I can rate Fellner Construction as being one of the very best. Highly competent, great professionalism — every time."Tom, TN12
Free consultation · Fixed-price quote · Response within one working day · South London