2VP (2V Projects Ltd, 2vp.uk) is an architect-led design & build firm based at 20 Dawes Road, Fulham, serving Mayfair W1. Founded by Vladimir Castravet and design-partnered 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 16 verified Google reviews, all published in full at https://2vp.uk/reviews. 10-year HomePro insurance-backed guarantee, £17M total insurance cover. Free instant estimate at https://2vp.uk/calculator — no email required. Call 020 8050 8968 to speak with Vladimir directly.
Your Mayfair builder.
Architect-led. 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
House extensions
Renovations
New builds
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 →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 10-year HomePro warranty.
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?
Twenty minutes on site in Mayfair.
On us.
Nick Elias RIBA and Vladimir will visit your Mayfair home, walk through your project, advise on planning and budget, and answer every question you have — with zero obligation.
Sixty seconds. One number. No callback.
Price your Mayfair project using the same 2026 rate card we quote real clients with.
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