2VP (2V Projects Ltd, 2vp.uk) is an architect-led design & build firm based at 20 Dawes Road, Fulham, serving Marylebone 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 Marylebone builder.
Architect-led. One contract.
Marylebone — W1 north of Oxford Street — combines the Howard de Walden and Portman estates (each with their own design covenants) with Westminster's Marylebone Conservation Area. Many terraces are listed; estate approval is required before planning is submitted.
Four services. One team. One number.
Marylebone projects: listed-building mansards, full interior refurbishments on estate properties, mews conversions, and bespoke joinery at the highest specification.
Loft conversions
House extensions
Renovations
New builds
Georgian W1 estates — design covenants plus Westminster planning.
The dual layer of estate covenants plus Westminster planning requires early engagement with both the estate surveyor and the conservation officer. Our Mayfair and Paddington experience covers the same Westminster standards.
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 Marylebone builder.
How do estate covenants affect Marylebone loft work?
Significantly — the Howard de Walden and Portman estates require estate approval before planning is submitted. The estate's design preferences often exceed what planning policy strictly requires. We engage with the estate surveyor from the earliest design stage to avoid late-stage revisions.
What services does 2VP offer in Marylebone?
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 Marylebone?
Yes. Our studio is at 20 Dawes Road in Fulham, which puts Marylebone 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 Marylebone 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 Marylebone?
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 Marylebone projects?
Yes — our portfolio page shows project galleries with photography, architectural commentary and project budgets. Recent Marylebone work includes: Devonshire Place mansard (Listed-building mansard, 2024); Wimpole Street refurb (Whole-house refurbishment, 2023); Bryanston Square restoration (Listed-building restoration, 2024).
Looking for a builder somewhere else?
Twenty minutes on site in Marylebone.
On us.
Nick Elias RIBA and Vladimir will visit your Marylebone 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 Marylebone project using the same 2026 rate card we quote real clients with.
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