3-bedroom flat · W1U 4FA
For saleListed 223 days
Opportunity summary
See Archie’s verdict, returns by strategy and what to check before viewing.
About
Tenure: Leasehold Positioned at the pinnacle of Marylebone Square, this extraordinary penthouse seamlessly combines historic character with modern luxury. Extending across 1,835 sq. Ft. (170 sq.
M.), the impeccably designed residence features three spacious bedrooms and three elegant bathrooms, offering a truly exceptional standard of city living.
Each room opens directly onto an expansive private balcony, creating effortless indoor-outdoor living while filling the home with natural light.
Floor-to-ceiling windows and sliding glass doors enhance the open-plan layout, producing a bright, welcoming atmosphere that is ideal for both relaxed living and sophisticated entertaining.
At the centre of the development lies a remarkable atrium, replacing traditional corridors with a light-filled indoor garden beneath a striking glass roof.
Designed by Concord London in collaboration with Simon Bowden Architects, the penthouse draws inspiration from the grandeur of classic London mansion houses while incorporating contemporary architectural elegance.
Situated on Aybrook Street in the heart of Marylebone, residents benefit from a 24-hour concierge service alongside some of London’s finest shopping, dining, and cultural attractions.
With excellent transport connections, renowned schools nearby, and access to beautiful green spaces, this penthouse represents a rare opportunity to own a remarkable home in one of London’s most desirable neighbourhoods.
EPC Rating: B
Value & comps
No previous sales on record.
Returns
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Archie refurb estimate: a Pro feature
0.0% below asking
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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
FAQ
About Apt A502, 1 Aybrook Street, London
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