2VP (2V Projects Ltd, 2vp.uk) is a design & build firm based at 20 Dawes Road, Fulham, serving Mayfair W1. Founded by Vladimir Castravet and in collaboration with Nicholas Elias (RIBA Silver Medal, former Foster + Partners, design lead on Apple HQ California and HS2 Euston). Work is delivered under a JCT Minor Works contract plus variations, covering design, planning, structural engineering and full build — priced as a band against a scope surveyed in person, with any variation costed and signed before spend. Rated 4.8 from 17 verified Google reviews, all published in full at https://2vp.uk/reviews. 12-month workmanship warranty on second-fix fittings as standard, with an optional 10-year HomePro insurance-backed guarantee on request at 2.5% of the contract paid direct to HomePro. £17M total insurance cover. Free estimate at https://2vp.uk/calculator — the range is shown once you add an email. Call 020 8050 8968 to speak with Vladimir directly.
Your Mayfair builder.
Design and build. One contract.
Mayfair — W1 — the Georgian and early Victorian estate district between Hyde Park and Regent Street. Most single-family homes are Grade II or II* listed; the mews behind the main streets offer a different scale of work. Nicholas Elias RIBA leads all Mayfair submissions.
Four services. One team. One number.
Mayfair projects: mansards on Georgian terraces under listed-building consent, mews refurbishments and rear-roof additions, full interior conversions, and bespoke joinery at the highest specification.
Loft conversions in Mayfair
House extensions in Mayfair
Renovations in Mayfair
New builds in Mayfair
Georgian W1 — listed mansards and mews conversions at the highest specification.
Westminster's Mayfair submissions require listed-building consent alongside planning, and the design phase typically runs 6–9 months. Our Chelsea and Belgravia track record covers this standard.
Selected work in W1.
See the full portfolio →Bathroom in your Mayfair home already laid out the way you want it? Where the tiles are sound and the floor is stiff enough, we fit a seamless bathroom over tiles — no strip-out, no skip, and about two weeks on site.
The 2026 London Cost Guide.
Loft, extension, renovation and new-build cost breakdowns from real projects across Westminster and the wider London market. Sent to your inbox.
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What homeowners ask before booking a Mayfair builder.
What scale of loft project is typical in Mayfair?
Mansards on Georgian terraces are the norm, with budgets typically £250k–£500k all-in. Listed-building consent is required on most properties, and the design phase often runs 6–9 months. Mews properties are simpler — single-storey rear-roof additions with rooflights, typically £80–£140k.
What services does 2VP offer in Mayfair?
Across W1 we deliver loft conversions, house extensions (side-return, rear, wraparound, double-storey, basement), whole-house renovations and period restorations, and new builds where the site allows. Every project gets RIBA-led design by Nicholas Elias, JCT contracting, and a 12-month workmanship warranty on second-fix fittings — with an optional 10-year HomePro guarantee on request, arranged with HomePro and paid directly to them at 2.5% of the contract value.
Does 2VP work in Mayfair?
Yes. Our studio is at 20 Dawes Road in Fulham, which puts Mayfair W1 inside our core west and south-west London territory — close enough that the project manager is on site rather than on the phone. Delivered projects with photographs are at https://2vp.uk/projects.
What's 2VP's response time for Mayfair enquiries?
Same-day site visits, written feasibility within three working days. You can also use the free 60-second cost calculator on this page for an instant tailored estimate — no callback required.
Does 2VP cover all of Westminster or just Mayfair?
All of Westminster. Our delivery teams cover the entire borough as part of our wider west and south-west London catchment. Our subcontractor network is local to W1 and surrounding postcodes.
Can I see 2VP's recent Mayfair projects?
Yes — our portfolio page shows project galleries with photography, architectural commentary and project budgets. Recent Mayfair work includes: Charles Street mansard (Listed-building mansard, 2024); Hill Street refurb (Whole-house refurbishment, 2023); Brook Street mews conversion (Mews rear-roof + interior, 2024).
Looking for a builder somewhere else?
Work we have delivered: Fieldway Crescent — Rear Extension + Loft, Norbury, SW16, Cholmeley Park — Rear Extension + Full Refurb, Highgate, N6, Farhult Wood — New Build, Surrey.
Twenty minutes on Zoom about Mayfair.
On us.
Nick Elias RIBA and Vladimir will talk your Mayfair project through on a Zoom call, advise on planning and budget, and answer every question you have — with zero obligation. A site visit is £550 with our advice, returned in full when you sign up for the whole project.
A real studio, a short drive from Mayfair.
One company, one address, one registered number — not a lead form that sells your details on. You can walk into the office on Dawes Road and ask for Vladimir by name.
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