Architects, structural engineers, surveying support and directly-employed trades under one roof — an established London renovation company that designs, engineers and builds your project on a single fixed-price contract. One team, one price, one point of accountability, from first brief to handover and ten-year warranty.
Most renovation projects go wrong in the gap between the people who design them and the people who build them. The architect draws a scheme, hands over a pack, and steps back; the builder prices it, finds it does not quite work or costs far more than expected, and the homeowner is left in the middle, paying for the difference and refereeing the blame. A design-and-build renovation company exists to close that gap entirely.
This page is about choosing a renovation company, renovation contractor or design-and-build firm — what to look for, and how we work. We are a single integrated studio: RIBA Chartered architects, MIStructE structural engineers, RICS surveying support through our sister company, MEP consultants, interior designers and our own directly-employed core build teams — all under one roof and one JCT fixed-price contract. The architect who designs your project walks the site every week. The estimator who priced your bill is the person you call when you want to change something. There is one company responsible from the first sketch to the last snag.
We renovate, refurbish, extend and convert — whole houses and flats, kitchens and bathrooms, lofts and basements — but the constant is the model. We resolve the design, the structure, the services and the cost before we start, price it as a single fixed sum, and deliver it with one accountable team. When something unexpected is found behind a wall, there is no one to pass it to, because there is only us. That is what a renovation company should mean.
We have delivered 103+ residential projects across NW3, NW8, NW1, SW1, SW3, SW7, W1 and W11 — Georgian townhouses, Victorian terraces, Edwardian villas, mansion flats and contemporary homes — with particular depth in the conservation areas and period housing where heritage and planning expertise matter most. If you are looking for the specific service rather than the company, our house renovation, refurbishment, extensions and loft conversion pages go into detail.
The reason this model matters is that a renovation is, financially and emotionally, one of the largest projects most people ever commission — and the construction industry is not short of cautionary tales. Budgets that drift, programmes that slip, contractors who disappear mid-job, and the slow, exhausting process of refereeing between a designer and a builder who each insist the problem belongs to the other. Almost all of it traces back to fragmented responsibility. When no single party owns the whole result, the homeowner owns it by default — including every gap, every assumption and every unforeseen cost. An integrated renovation company exists precisely to take that ownership off you.
It also changes the quality of the work itself, not just the management of it. Because our architects know what our build teams can deliver, our engineers know what the trades will be asked to install, and our estimators have priced a hundred similar projects nearby, the design that reaches site is one that can actually be built as drawn — rather than an elegant scheme that unravels the first time a wall is opened. Decisions that would bounce for weeks between separate firms are resolved in a single conversation. The result is a project that runs to programme, holds its price, and is finished to a standard that a disconnected team rarely achieves.
Below is how we work, why clients choose us, and the questions worth asking any renovation company before you commit your home and your budget to them.
From a single room to a whole-house transformation, the same integrated team and fixed-price model. These are the six areas of work we are asked for most.
Reconfiguring, modernising and transforming an entire home — layout, structure, services and finishes — delivered as one programme. Our house renovation service in full.
Bringing a period property's condition and finish back to a coherent, high standard. Our house refurbishment and full refurbishment service.
Rear, side-return, wrap-around and double-storey extensions, with the structural steel and open-plan work to match. Our house extensions service.
Reclaiming roof and lower-ground space — loft conversions, basements and cellar conversions — for the bedrooms and living space a house can gain without moving.
Bespoke fitted kitchens and bathrooms, designed and built as part of a renovation or on their own — the rooms that most define a home.
The work beneath the finishes — structural alterations, rewiring, plumbing, heating and insulation — that makes a renovation perform, not just look new.
The whole point of an integrated renovation company is that all of this sits with one team under one contract. Here is what that includes.
RIBA Chartered architects developing the layout, the spatial planning and the detailed drawings in-house — not a separate practice handing over a pack and walking away.
MIStructE engineers producing the calculations and details for steel, openings, underpinning and floor strengthening, and the Building Control submission — all in-house.
RICS surveying support through our sister company — condition surveys, Party Wall awards and due diligence — alongside Building Control and planning coordination.
Planning applications, Listed Building Consent and Lawful Development Certificates prepared and managed in-house, including the most restrictive conservation areas.
The whole project priced as a single fixed sum before you commit, under a JCT contract — no open-ended cost-plus, no inflated provisional sums, no surprises.
Our core carpenters, plumbers, electricians and decorators are PAYE staff, not gig labour — continuity of standard from one project to the next.
A dedicated project manager and weekly written progress reporting with photography — so you always know where the project stands, on programme and on budget.
Strip-out, structure, first fix, plaster, second fix, kitchens, bathrooms, joinery, flooring and decoration — the entire build delivered by one accountable team.
NICEIC-certified electrical work and Gas Safe registered plumbing and gas — self-certified, documented and compliant, not sub-let to an unknown trade.
Deep experience with listed buildings and conservation areas — lime plaster, sash restoration, cornice reproduction — and the consents to alter them lawfully.
£10M professional indemnity and public liability, a 12-month defects period and a 10-year insurance-backed workmanship warranty — protection well above the norm.
One free service visit at six months and a 24-hour line for live defects — the reason most of our clients return for a second project within five years.
There are perhaps fifteen design-and-build practices in London delivering at this standard. Here is what makes us one of them.
Design, engineering and build under one roof and one contract — so there is never a gap to fall into, and one company is responsible for the whole result.
A single fixed price agreed before we start, under a JCT contract — you know the cost up front and are protected from cost-plus drift.
The RIBA Chartered architect who designed your project walks the site every week — decisions made in person, not lost in email between separate firms.
Directly-employed core trades mean continuity and a standard we control — not a rotating crew of the cheapest available sub-contractors.
103+ completed projects, real references and reviews, and conservation officers across London who know our practice by name.
£10M insurance and a 10-year workmanship warranty — the cover prime-London freeholders and serious clients expect from a renovation company.
We work to the RIBA Plan of Work 2020. Here is how a project runs with us, whatever its scale.
An initial consultation at our studio or your home to understand what you want, talk realistic budgets and agree the broad shape of the brief. No charge, no obligation.
A measured survey, planning and structural review, and a written feasibility report with options, constraints and an outline cost band.
Concept directions developed and presented with plans and 3D walk-throughs, then refined to a single preferred design.
Any planning, Listed Building Consent or Lawful Development Certificate prepared and submitted, with Building Regulations in parallel.
The full technical pack — structural calculations, M&E, finishes schedule and a written specification — that the build follows.
JCT contract signed, then the full build with weekly progress reports, weekly architect visits and monthly cost reports.
Commissioning, a joint snagging walk, the certification pack and handover of your finished home.
A 12-month defects period, a six-month service visit and a 10-year workmanship warranty.
A good renovation company is honest that cost follows specification. Here is how our four tiers differ — the same model, four standards of finish.
For a representative high-end whole-house renovation of a 200 sqm home at £1,000/sqm — £200,000 contract — here is the honest breakdown.
What makes us a renovation company rather than a builder is the range of disciplines we bring to every project.
We work across prime London, with particular depth in the period housing and conservation areas of the north and centre.
Our studio is at 250 Finchley Road in NW3, and we work throughout prime London — NW3, NW8, NW1 and NW11; W1, W8 and W11; SW1, SW3 and SW7; N1 and N6; and the City. We have particular depth in the Georgian, Victorian and Edwardian housing and the conservation areas where heritage knowledge, planning relationships and careful workmanship matter most, and where a renovation company without that experience quickly comes unstuck.
Being rooted in a patch matters more than it sounds. It means the conservation officers know our practice, the local authorities know how we work, and the framework trades we rely on — lime plasterers, conservation joiners, stone specialists — are within a few miles of your home, with their previous work nearby for you to see. For projects further afield — Surrey, Buckinghamshire, the Cotswolds — we run a separate framework on request.
To see the breadth of what we do, browse our portfolio and case studies, read our client reviews, or learn more about the company. When you are ready to talk through a project, simply get in touch or use the cost calculator for an early budget.
A representative build programme for a whole-house renovation. Yours will differ by scope, but this is how we run the construction phase.
The questions worth asking any renovation company — and our answers.
Design, structure, services and build under a single JCT fixed-price contract — not a designer and a builder you must coordinate yourself.
The cost agreed before we start, with liquidated damages for late delivery — we carry the risk of our pricing, not you.
The architect who designed your project on site every week — decisions made in person.
Directly-employed core trades for continuity and a standard we control.
Successful consents and skilled craft across London's listed and conservation-area homes.
Cover well above industry standard, confirmed in writing pre-contract.
Insurance-backed workmanship warranty protecting your investment for the long term.
Most of our clients come back for a second project within five years — the clearest verdict on a renovation company.
The renovation company behind every one of these services. Start with the one you have in mind, or speak to us about the whole project.
Whole-house renovation — layout, structure, services and finishes as one programme.
Restoration-led gut-to-finish refurbishment of period homes.
The single-contract model behind everything we do.
Rear, side-return, wrap-around and double-storey extensions.
Reclaiming roof space for bedrooms and suites.
Bespoke kitchens, designed and built in-house.
Complete, whole-property refurbishment programmes.
The same integrated company, refurbishment-focused.
The clearest measure of a renovation company is its completed work. Browse the case-study hub, the wider portfolio and our client reviews.
A four-storey townhouse renovated end to end — structure, services, kitchen and three bathrooms.
View case study →Five-storey period house: full programme with basement, extension and loft works.
View case study →Read genuine reviews from clients across our completed projects.
Read reviews →Browse the full portfolio of renovations, extensions and refurbishments across London.
View portfolio →“I would like to thank Ross and his team for their consistent commitment to quality and their unerring reliability. They delivered our property to specification and on time, proving to be an extremely effective, experienced, and proactive contractor.”
“We have worked with Ross and his company many times. They are extremely professional and hardworking individuals who can work under any circumstances. There was no variation to the works.”
Book a no-obligation consultation at our Finchley Road design studio or in your home. The first meeting is free, lasts 60–90 minutes, and concludes with an honest indication of feasibility, programme and budget band. No salespeople. No pressure.
Site visit · feasibility assessment · outline cost estimate · programme indication. No obligation. Saturday appointments available.