6-bedroom flat · W1K 2HN
To rentListed 34 days · slow let
Opportunity summary
See Archie’s verdict, returns by strategy and what to check before viewing.
About
A rare duplex penthouse offering grand proportions, private terraces and panoramic Mayfair views.
Description A remarkable duplex penthouse overlooking the heart of Mayfair, combining grand proportions, elegant interiors and exceptional private outdoor space.
The beautifully considered accommodation unfolds across generous reception and dining spaces, with expansive windows and private terraces creating a natural connection to the surrounding cityscape.
The principal suite occupies its own upper-floor setting, complemented by a generous dressing room and private en suite, while additional bedrooms provide exceptional flexibility for family, guests or staff.
A sophisticated kitchen with adjoining dining room forms the heart of the home, while the panelled room offers a more intimate setting for relaxing or entertaining.
A dedicated conservatory provides a peaceful, light-filled retreat throughout the seasons.
With its graceful proportions, refined architectural detailing and elevated views across Mayfair, this is a rare penthouse residence designed for both impressive entertaining and effortless everyday living.
Square Footage: 4,354 sq ft
Value & comps
No previous sales on record.
Rental comparables are shown in the Rental section below. Sold comparables remain for area capital context only.
Returns
Short-let restrictions apply
We're still gathering serviced-accommodation data for this area.
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Past performance does not guarantee future results. Tax implications vary by individual circumstances.
Deal
Properties like this can earn 2–3x BTL yields when converted to HMO, with retrofit costs around £10k/room. Sign in to see the full tier, yield projection, and cost breakdown.
Commercial properties like this can earn 30-50% higher yields when converted to residential under Class MA / Q / P / PA, with prior approval costing ~GBP 96/unit. Sign in to see the recommended route, yield uplift, and cost breakdown.
BRRR-suited properties can recycle 80-100% of investor capital on refi, leaving a high-yielding rental with most of the money out. Sign in to see the refurb cost stack, ARV projection, and refinance maths.
Detached + large garden = sub-division play. Pro tier unlocks the tier badge, plot size, uplift estimate, and regional land benchmark.
Short-lease flats trade at deep discount, but extending under the 1993 Act often costs far less than the discount. Pro tier unlocks the tier badge, premium breakdown, long-lease ARV and arbitrage maths.
See projected short-stay revenue vs a vanilla BTL for this property.
See real sub-let margins (HMO room rates & SA nightly rates) vs the landlord rent.
Area
Agent & docs
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FAQ
About Flat 29, 35-37,, Grosvenor Square, London
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