Our services
Design & Build
As a design and build contractor in London, MVV holds the design and the construction of your project under one roof, so you have a single point of responsibility from the first idea to the final handover. That means clearer communication, a tighter programme and firmer control over cost. A dedicated project manager stays with you at every stage, across South West, West and South East London, so the brief you agree is the home you receive.


Feasibility study
We assess what your property can realistically deliver against your vision, budget and the relevant planning rules, so you start with a clear, honest picture before any money is committed.
Pre-design
We refine your early ideas and set the foundation for the design and the budget together, making the key decisions that keep the project on track and aligned with planning expectations.
Design
Our architect-led design brings together architectural, structural and interior detailing into one coherent plan, so the build flows from a single, considered vision.

Pre-construction
We prepare everything needed for a clean start: health and safety planning, site logistics and a detailed construction programme, so the first day on site is the right one.
Construction
We deliver the build in clear phases: demolition, structure, carpentry, mechanical and electrical, tiling, flooring, plastering, decorating and the final fixtures and furnishings, all managed by one team.
Completion and handover
We complete snagging, issue a full handover pack and hand you a clear record of the specifications and finishes used, so you know exactly what has gone into your home.

Detailed schedule of works
Every stage carries a clear timeline and a precise budget, so the project stays well managed and free of surprises.
Interior design package
A complete interior design service, with technical drawings and 3D visuals, helps you see and shape your home before a single wall is moved.
Planning and permissions
We manage the planning process for you, from application to approval, keeping the project compliant with the regulations that apply to your London property.

Engineering design
Our architects and engineers work side by side to deliver designs that are safe and efficient, often unlocking sensible savings along the way.
Budget analysis
We analyse the full cost picture, covering materials, labour and a realistic allowance for the unforeseen, so you have genuine financial transparency from the outset.
Why choose design and build
A design and build contractor gives you a single point of responsibility for both the design and the construction, which removes the gaps where miscommunication, cost overruns and delays usually hide. It is the calmest way to deliver a high-end home.
The projects we handle
We deliver residential and commercial design and build projects across London, including house extensions, loft conversions and full refurbishments. Whether your scheme is a single room or a whole-house transformation, the same accountable team takes it from design to completion.
How we protect quality
We safeguard quality with skilled craftspeople, considered materials and close oversight of every detail, supported by regular checks at each stage of the design and build process.
How much does a design and build project cost in London?
As a realistic 2026 starting point from our own priced projects, all ex VAT: complete single storey extension projects from around £100,000, loft conversions between £90,000 and £115,000, and full house refurbishments from roughly £1,400 to £2,000 per square metre. Every project is different, which is why the instant estimator on this site prices yours from your own description and sends a realistic range to your inbox in minutes. Figures are indicative, from projects priced in August 2026.
Design & Build across London
- Fulham
- Chelsea
- Notting Hill
- Chiswick
- Wimbledon
- Pimlico
- Belsize Park
- Hampstead
- Mayfair
- Marylebone
- Blackheath
- Borough
- Kensington
- Streatham
- St John's Wood
- Maida Vale
- Little Venice
- Regent's Park
- Primrose Hill
- West Hampstead
- Fitzrovia
- Bloomsbury
- Covent Garden
- Soho
- St James's
- Westminster
- Belgravia
- Knightsbridge
- Bayswater
- Paddington
- Clerkenwell
- Holland Park
- South Kensington
- Earl's Court
- Sevenoaks
Thinking about design & build? Get a realistic number in minutes.
Instant estimateRelated projects
Where this work comes to life
A selection of completed MVV projects delivered with this service.



