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London's Trusted Extension Specialists

Transform Your Home with a Stunning House Extension

Award-winning design, build & construction. From bespoke kitchen extensions to comprehensive home extension — we deliver exceptional craftsmanship across London.

10+ years experience

100+ projects delivered

Federation of Master Builders

House Extension Services in London

Award-winning design, build & construction. From bespoke kitchen extensions to comprehensive home extension — we deliver exceptional craftsmanship across London.

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Rear Extensions

Open up your ground floor with a beautifully designed rear extension. Bi-fold doors, skylights, and seamless indoor-outdoor living.

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Loft Conversions

Add an extra bedroom, home office, or en-suite bathroom. Our loft conversions are designed to maximise headroom and natural light.

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Side or Wraparound Extensions

Maximise your unused side return space. Perfect for creating larger kitchens, open-plan living, and adding real value to your property.

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From Vision to Reality in 4 Simple Steps

1

Free Consultation

We visit your property, discuss your vision and provide expert advice on what's possible.

2

Design & Planning

Our architects create detailed plans. We handle planning permission and building regulations.

3

Construction

Our skilled team brings your extension to life with exceptional craftsmanship and minimal disruption.

4

Handover

Quality inspected and certified. We hand over your beautiful new space, ready to enjoy.

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"We found RS D&M through a recommendation from our Architect. Robert and Vas did a fantastic job on our rear extension. We’ve now got a gorgeous open-plan kitchen and dining space that’s totally transformed how we use our home. We were super pleased that the job even finished ahead of a very tight schedule which couldn't have happened had the team not worked so brilliantly together. Genuinely a great team to work with."

Mr Cunningham - SW20

Frequently asked questions

We would love to speak to you and see if we can help with your project.

 

Get in touch

Office Hours

 

Mondays to Fridays

09:00 AM - 6:00 PM

Saturdays

09:00 - 1:00 PM

 

Office 

 

167-169 Great Portland Street

Fitzrovia

London

W1W 5PF

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© RS D&M Limited. Registered in England no. 13830091.

RS D&M Limited delivers prime, high-quality design, build and construction services with a focus on quality, innovation, and client relationships in Barnes, Battersea, Belgravia, Clapham, Chessington, Claygate, Chelsea, Chiswick, Esher, East Sheen, Earls Court, Epsom, Ewell, Fulham, Hampton, Hammersmith, Holland Park, Isleworth, Kensington, Kingston, Kew, Knightsbridge, Leatherhead, Mayfair, Merton, Mitcham, Morden, New Malden, Notting Hill, Paddington, Parsons Green, Pimilico, Putney, Raynes Park, Shepherds Bush, South Kensington, Streatham, Sutton, Tooting, Richmond, Teddington, Thames Ditton, Twickenham, Wandsworth, Wimbledon, Wimbledon Chase and Worcester Park

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