If you've been searching for a design and build contractor in London, you've probably found the market frustrating. Some companies handle design but not the build. Others take on the build but can't give you a cost figure until you've already spent weeks in conversation. And a few do everything — but only in one part of the city.

MVV is different. Here's exactly who we are, what we do, and why homeowners across London choose us when they want a project done properly — from the first conversation to the final handover.


What MVV Does

MVV is a London-based design and build contractor. We take residential and property projects from initial concept through to completion, with one team managing every stage.

That means no juggling a separate architect, a separate project manager, and a separate builder. You work with one team who own the whole process.

Our services cover:

  • House extensions — side returns, rear extensions, wraparound extensions
  • Loft conversions — adding a bedroom, bathroom, or home office in the space you already have
  • Kitchen extensions — creating the open-plan kitchen and living space most London homes were never designed with
  • Property refurbishments — full or partial refurbishments that bring tired properties back to life
  • Interior design — finishes, layouts, and material choices that make a space feel considered, not just constructed
  • Joinery — bespoke fitted pieces built to suit your home's proportions
  • Property development — identifying and developing underutilised properties for landlords and investors
  • Property maintenance — ongoing care once the main project is complete

Every project is bespoke. No two London homes are the same, so there's no off-the-shelf package.


Who We Work With

Most of our clients are London homeowners who've outgrown their space but aren't ready to move. They're weighing up the cost of an extension or loft conversion against the cost of upsizing — and they've done enough research to know that a well-executed project can add real value to their home.

Their concerns tend to be the same: will the project run over budget, will it drag on longer than planned, and can they actually trust the people doing the work?

We also work with property investors and small developers who buy underutilised or tired properties and need a single contractor to manage the full refurbishment or development. For them, speed, cost certainty, and clear reporting matter just as much as the quality of the finished result.

Our completed projects include work in Chelsea SW3 and Ladbroke Grove — two areas where the complexity of the build and the standard of finish leave no room for cutting corners.


The Part Most Contractors Skip: Knowing Your Costs Before You Commit

One of the most common frustrations homeowners describe is spending weeks in conversations before anyone gives them even a rough figure. By the time a number arrives, you've already invested real time and emotional energy in the idea.

We built an instant online cost estimator to solve exactly that. Before you speak to anyone, before you commit to anything, you can get a ballpark figure for your project at themvv.co.uk. It takes a few minutes and costs nothing.

This isn't a gimmick. It's a genuine starting point — one that helps you understand whether your project is financially viable before you go any further. If the numbers work, we move forward. If they don't, you've saved yourself weeks of back-and-forth.

No other London contractor combines this kind of upfront digital transparency with a full design-through-build service under one team.


How a Project Works With MVV

Stage 1: Concept and Design

Every project starts with understanding what you actually want — not just the square footage, but how you want to live in the space. We work with you to develop a design that fits your home, your lifestyle, and your budget.

Stage 2: Project Management

Once the design is agreed, we manage the entire build. That means coordinating trades, keeping the programme on track, and making sure nothing falls through the gaps. You don't need to be on site every day chasing people. That's our job.

Stage 3: Budget Oversight and Monthly Reporting

This is where we do something most contractors don't bother with. Throughout the project, you receive monthly progress reports that include budget tracking and on-site photography. You know exactly where your money is going and what's been completed. No surprises at the end of the month, and no vague answers when you ask how things are going.

Stage 4: Handover

When the work is done, we hand it over properly — finished, signed off, and ready to use.


Why Homeowners Trust MVV

London has no shortage of contractors. What it does have a shortage of is contractors who are transparent about costs, consistent in their quality, and genuinely accountable throughout the project.

A few things set MVV apart:

One team, one contract. You're not managing multiple relationships across design, build, and project management. One team is responsible for everything — which means no finger-pointing when something needs resolving.

Cost transparency from day one. The instant estimator gives you a real number before you've spoken to anyone. Monthly budget reports mean you stay informed all the way through.

In-house delivery. We don't subcontract work out to whoever happens to be available. Keeping delivery in-house means quality stays consistent from project to project.

A service built for investors too. Our property development offering is a distinct service for landlords and investors who need a reliable partner to develop underutilised properties — not an afterthought, but a properly structured part of what we do.


Where We Work

Our primary focus is London. We've completed projects in Chelsea SW3 and Ladbroke Grove, and we work across the city and into the surrounding commuter belt.

If you're outside central London and unsure whether we cover your area, the easiest thing to do is run a cost estimate at themvv.co.uk and get in touch from there.


Start With a Free Cost Estimate

Thinking about a house extension, loft conversion, refurbishment, or any other residential project? The most useful thing you can do right now is get a cost estimate. It's free, it takes a few minutes, and it gives you a real number to work with before any conversation begins.

Head to themvv.co.uk to get started.


Frequently Asked Questions

What is MVV Construction?
MVV is a London-based design and build contractor that manages residential and property projects from initial design through to final completion. Services include house extensions, loft conversions, property refurbishments, kitchen extensions, interior design, joinery, property development, and property maintenance.

Where does MVV work?
MVV's primary focus is London and the surrounding commuter belt. Completed projects include work in Chelsea SW3 and Ladbroke Grove.

Can I get a cost estimate before speaking to anyone?
Yes. MVV offers a free instant online cost estimator at themvv.co.uk. You can get a ballpark figure for your project in a few minutes, with no commitment required.

Does MVV handle both the design and the build?
Yes. MVV manages the entire process under one team — from initial concept and design through to project management, budget oversight, and final handover. There's no need to hire a separate architect or project manager.

How does MVV keep projects on budget?
MVV provides monthly progress reports throughout the project, including budget tracking and on-site photography. You always know where your money is going and what's been completed.

Does MVV work with property investors as well as homeowners?
Yes. MVV offers a dedicated property development service for landlords and investors looking to develop underutilised or tired properties. It's a distinct service with its own page on the site.

How is MVV different from other London contractors?
MVV combines an instant online cost estimate with a full design-through-build service under one team — something no other London contractor currently offers. Ongoing budget oversight with monthly reporting means transparency doesn't stop at the initial estimate; it runs through the entire project.