Builders in Greenwich
Kelmend Construction is based in Sidcup, in the next borough along. Extensions, loft conversions, renovations and landscaping across Greenwich, Charlton, Blackheath, Kidbrooke and Westcombe Park, with recent projects to see.
The Royal Borough, from Charlton to Blackheath
Greenwich is one of the most varied boroughs we work in. Victorian terraces in East Greenwich and Charlton, substantial Victorian and Edwardian houses in Westcombe Park and around Blackheath, interwar semis toward Kidbrooke and Eltham, and some of the most tightly protected streets in London around the Maritime Greenwich World Heritage Site.
We've completed a Velux loft conversion with full refurbishment in Charlton and a complete garden rebuild in Kidbrooke recently, both below. We're based in Sidcup, a short drive down the A2, and know how the Royal Borough of Greenwich handles householder applications in and out of its conservation areas.
Our services in Greenwich
Everything from a garden to a full house renovation, managed by one team. Extensions and loft conversions have their own Greenwich pages with local planning detail.
Extensions in Greenwich
Rear, side return, double storey and wraparound extensions on Greenwich's Victorian terraces and Edwardian houses. Planning, build and finish managed as one job.
See extensions in Greenwich →Loft Conversions in Greenwich
Hip-to-gable, dormer, Velux and mansard conversions. Free roof assessment before you commit to anything.
See loft conversions in Greenwich →Renovations in Greenwich
Full house renovations, kitchens, bathrooms and flat refurbishments across Greenwich, from structural work to final decoration.
Learn more →New Builds in Greenwich
New build homes and infill plots, from foundations to handover, with planning and building control managed throughout.
Learn more →Roofing in Greenwich
Roof repairs, full replacements, flat roofs, guttering and chimney work, with scaffolding and weatherproofing handled by us.
Learn more →External Rendering in Greenwich
Silicone, monocouche and sand-and-cement rendering, with cracked render repairs and external wall insulation.
Learn more →Landscaping in Greenwich
Patios, decking, garden walls, drainage and full garden landscaping that ties in with an extension or stands on its own.
Learn more →Painting and Decorating in Greenwich
Internal and external painting and decorating, usually as the finishing stage of a bigger project but available on its own.
Learn more →Recent projects in Greenwich borough
Two recent jobs in Charlton and Kidbrooke. Click through for the full story and photos.
Velux loft conversion and full refurbishment, Charlton
A Velux loft conversion delivered alongside a full internal refurbishment of a Victorian terrace, managed as one project.
View projectGarden landscaping, Kidbrooke
A complete garden rebuild with new patio, lawn, raised beds and boundaries.
View projectPlanning in Greenwich
Greenwich has planning considerations that go beyond most London boroughs. The World Heritage Site, a dense cluster of conservation areas and many listed buildings mean the rules change street by street.
Permitted development
Outside conservation areas, most rear extensions and rear dormers on Greenwich's terraces and semis are permitted development. We confirm the position for your address first.
World Heritage Site
Properties in and around Maritime Greenwich face the tightest scrutiny in the borough. Any external work needs planning permission and heritage input.
Conservation areas
Westcombe Park, Charlton Village, East Greenwich, Blackheath Park and others. Work visible from the street needs planning permission and matching materials.
Timelines
Greenwich typically decides householder applications within 8 weeks of validation. Heritage applications take longer.
Party walls
Terraced projects always involve the Party Wall Act. We flag it at the first visit.
Building regulations
Structural work, loft conversions and extensions all need building control approval, managed by us from start to sign-off.
Greenwich's conservation areas
The borough has a dense cluster of conservation areas, including:
We check your address against Greenwich's current maps at the consultation.
Why Greenwich homeowners choose us
Based in Sidcup
A local company with a local reputation to protect. Site visits, the build and any snag afterwards are a short drive, not a trip across London.
One accountable team
You deal with us throughout, not a project manager you've never met. We're on site, reachable, and answer the phone.
Planning handled
We advise on the planning route, work with architects who know the local council, and manage building control. You won't be chasing the council yourself.
Itemised, honest quotes
Fully itemised quotes with no vague allowances. Any changes are costed in writing before we proceed.
Built to regulations
Every structural project is signed off by building control, protecting your investment and avoiding problems when you sell.
Finished properly
We don't hand over a shell. Plastering, flooring, electrics, plumbing and decoration run as one programme so the job is finished, not nearly finished.
Greenwich and nearby
Based in Sidcup and working across the Royal Borough and beyond, including:
Not listed? We take on projects across south east London. Just get in touch.
Questions Greenwich homeowners ask
Do you cover all of Greenwich?
Yes. We work across the whole of Greenwich and the surrounding areas. Most of our projects are within a short drive of our Sidcup base, which keeps site visits, deliveries and snagging quick.
How much do builders in Greenwich charge?
It depends entirely on the job. As a guide, single storey rear extensions run £1,500 to £2,200 per square metre fully finished, loft conversions from around £35,000 for a dormer, and full house renovations are priced room by room. Work in conservation areas often involves higher-specification materials. Every quote is itemised.
Do you handle planning permission with Greenwich Council?
Yes. We advise on whether your project needs planning permission or falls under permitted development, work with architects who know Greenwich Council, submit the application and manage building control through to sign-off.
Can I see examples of your work?
Our projects page has full photo write-ups of recent extensions, loft conversions, refurbishments and gardens, and we're happy to put you in touch with past clients nearby.
How do I get a quote?
Call 020 8226 0221 or use the quote form. We'll visit your Greenwich property, talk through what you want and come back with a fully itemised quote. No pressure, no call centres.
Are you insured and do you provide a contract?
Yes. We carry public liability insurance and every project runs on a written contract setting out scope, timeline, stage payments and how any changes are handled.
Need a builder in Greenwich?
Tell us about your project and we'll come round for a free, no-obligation consultation.
No pushy sales. No call centres. Just a straight conversation about your Greenwich project.