Design and Build, London
Luxury Residential Design and Build Contractor
Luxury Residential Design and Build Contractor
The design-and-build procurement route offers significant advantages for residential clients who value simplicity, accountability and programme certainty. Rather than managing separate design and construction contracts – with all the coordination challenges that can entail – a design-and-build approach delivers your project through a single integrated team with a single point of responsibility for both design and construction.
Advantage Basements & Renovations is one of London's leading design-and-build contractors for the luxury residential market, combining in-house architectural, structural engineering and construction capabilities to deliver complete projects of the highest quality.
The Design and Build Advantage
When design and construction sit within the same organisation, the relationship between the two is fundamentally different.
Our architects design with a thorough understanding of how their designs will be built, avoiding details that are difficult to construct or that carry unnecessary cost. Our construction team builds with a genuine understanding of the design intent, maintaining quality and faithfulness to the design throughout. This integration reduces the gap between design aspiration and constructed reality.
For our clients, the practical benefits are considerable: a single contract, a single team to communicate with, clear accountability for every aspect of the project and a contractor who is motivated to resolve issues quickly rather than deflecting responsibility. Our proactive project management approach delivers programme certainty and transparent cost reporting throughout the programme.
Building Works
What We Design and Build in London
Our design-and-build service encompasses basement extensions and new basement construction, house extensions and alterations, loft conversions, full-house renovations and complete basement-to-roof residential transformations.
For each project type, our in-house team provides all necessary architectural design, structural engineering, planning management and construction – supplemented by specialist subcontractors where required for specific elements of the works.
Our clients range from private homeowners undertaking major renovations or extensions to property managers overseeing refurbishment works across investment portfolios. In every case, our design-and-build service delivers the same commitment to quality, programme and client service.
Start Your Design-and-build Project
Contact Advantage Basements & Renovations to discuss your project and discover how our design-and-build service can deliver the home you have envisaged, with the certainty and quality you deserve.
FAQs
What are the benefits of design and build over traditional procurement?
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The design-and-build approach offers several significant advantages over traditional procurement, where design and construction are separately contracted:
Single point of responsibility – one team accountable for both design and construction, eliminating finger-pointing between designer and builder
Better integration – designers work with full knowledge of the builder's capabilities, and builders understand design intent thoroughly
Programme efficiency – construction planning can begin during design development, and potential buildability issues are identified early
Cost certainty – our fixed-price approach provides clear cost visibility before construction begins
Reduced client management burden – one contract, one team to communicate with, rather than coordinating multiple parties
For clients who value simplicity, accountability and programme certainty, design-and-build is typically the optimal procurement route.
Can I make changes to the design during construction?
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Yes, changes can be accommodated during construction, though the ease and cost of changes depend on timing and the nature of the change. Early-stage changes – during foundations and structural works – are relatively straightforward to incorporate. Changes to completed or near-complete elements inevitably involve greater cost and programme impact.
We encourage clients to finalise all design decisions before construction begins to avoid unnecessary variations, but we recognise that some refinements and adjustments are inevitable on any project. Our contracts include transparent variation procedures, and our project managers discuss the cost and programme implications of any requested changes before they are instructed, ensuring clients can make informed decisions.
How do you manage the relationship between design and construction teams in London?
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The beauty of our design-and-build service is that design and construction teams are part of the same organisation, reporting to the same project management structure. This eliminates the coordination challenges that arise when teams sit in different companies with potentially competing interests.
Our architects and structural engineers remain involved throughout construction, providing technical oversight and attending to any design queries that arise on site. This continuity ensures that design intent is maintained and that any necessary design development during construction is managed seamlessly. Regular coordination meetings between design and construction teams ensure everyone remains aligned throughout the project.