Design and Build in Richmond & South West London

Richmond Traders is a design and build contractor in Richmond, based in Twickenham (TW1 2AP) and working across South West London. We take your project from first idea to finished home with one team, one contract and one point of contact, so you get a clear price, a realistic programme and a single company responsible for both the design and the build.

Design and build at a glance

Who we are: Richmond Traders Ltd, a building and construction company based in Richmond, South West London.
What we do: one contract covering design, planning, approvals, construction and handover for extensions, loft conversions, renovations and new builds.
Where we work: Richmond, Twickenham, Kingston, Hampton, Isleworth, Teddington, Ham, Petersham, Sheen, Barnes, Kew, Ealing and across London.
Related services: House extensions, Loft conversions, Kitchen extensions, Commercial construction.

What is design and build?

With a traditional project you appoint an architect, then go out to tender, then hire a builder, and manage the gaps between them. With design and build, Richmond Traders handles everything: measured survey, design drawings, planning and building regulations applications, structural engineering, construction and finishes. You deal with one team from start to finish, which means fewer delays, fewer surprises and full accountability.

Design and build services in South West London

House extensions: single storey, double storey, side return and wrap-around extensions
Kitchen extensions: open-plan kitchen and living spaces
Loft conversions: dormer, hip-to-gable and mansard lofts
Whole-house renovations and refurbishments of period properties
New builds and structural alterations
Finishing trades, including silicone render and painting and decorating

Our design and build process

1. Consultation and survey: we visit your home, listen to your brief and budget, and carry out a measured survey.
2. Design: concept layouts, then detailed drawings you can review and adjust.
3. Planning and approvals: we prepare and submit planning or permitted development applications, building regulations, party wall matters and structural calculations.
4. Fixed, itemised quote: a clear price and programme before work starts.
5. Construction: our own project manager runs the site, keeps it safe and tidy, and updates you every week.
6. Handover: final snagging walk-round, certificates and warranties.

Why choose Richmond Traders for design and build in Richmond?

One contract, one team: no gaps between designer and builder.
Local knowledge: we know the planning rules, conservation areas and period housing of Richmond and South West London.
Clear pricing: itemised quotes with no hidden extras.
Insured and accountable: see our warranties, insurance and credentials.
Respect for your home: protected floors, clean sites and considerate working hours.

Areas we cover

From our base in Twickenham (TW1 2AP) we provide design and build services across South West London, including:

Design and build in Richmond (TW9, TW10): period homes, conservation areas and sensitive extensions.
Design and build in Twickenham (TW1, TW2): extensions, lofts and full renovations close to our base.
Design and build in Isleworth (TW7): extensions and refurbishments for family homes.
Design and build in Hampton (TW12): extensions, new builds and garden rooms.
Design and build in Kingston upon Thames (KT1, KT2): house extensions and loft conversions.
Design and build in Ham and Petersham (TW10): careful, high-quality work near Richmond Park.
Design and build in Sheen (SW14, TW9): Edwardian and Victorian home renovations and kitchen extensions.
Design and build in Barnes (SW13): riverside and period property extensions and refurbishments.
Design and build in Kew (TW9): side return extensions, lofts and renovations.
Design and build in Teddington (TW11): family extensions and whole-house refurbishments.
Design and build in Ealing (W5, W13): extensions, lofts and structural alterations.

Planning permission in Richmond and South West London

Many streets in Richmond, Twickenham, Kew, Barnes and Teddington sit within conservation areas, and some homes are listed or covered by Article 4 directions. As a design and build contractor, we check these rules at the start, design to suit them, and handle the applications with the relevant council: Richmond upon Thames, Kingston, Hounslow or Ealing.

Frequently asked questions

Is design and build cheaper than using an architect and a separate builder?

Design and build often reduces overall cost because the design is developed with build costs in mind from day one, and there are fewer fees, re-designs and delays between separate firms.

How long does a design and build project take?

It depends on the project. Design and approvals typically take several weeks to a few months; a single storey extension is often built in around 10 to 14 weeks once work starts. We give you a programme with your quote.

Do you handle planning permission?

Yes. We prepare the drawings and manage planning, permitted development, building regulations and party wall matters on your behalf.

Can I make changes during the design stage?

Absolutely. The design stage is there for you to refine layouts, finishes and budget before any work starts on site.

Start your design and build project

Planning an extension, loft or renovation in Richmond or South West London? Contact Richmond Traders to book a consultation and receive a clear, itemised quote. You can also see our latest projects.