3-bedroom flat · W1K 7PN
For saleListed 606 days
Opportunity summary
See Archie’s verdict, returns by strategy and what to check before viewing.
About
Set behind an elegant stone façade on Upper Grosvenor Street, the building presents a discreet Mayfair frontage with secure entry and a live-in caretaker.
Its refined architectural lines and impeccably maintained common parts create an immediate sense of arrival, while the central position places Hyde Park and the best of Mayfair’s dining, clubs and boutiques within a short walk.
Expertly furnished to the highest standards, this duplex apartment features direct lift access to a grand entertaining floor with a large terrace, a formal dining room and a separate fully equipped kitchen.
A striking glass staircase by Eva Jiřičná leads to the bedroom floor, where a lavish primary suite benefits from its own private terrace, an extensive walk-in wardrobe and a steam room.
State-of-the-art technology, including Lutron lighting, underfloor heating and CCTV, enhances the living experience, and the stone-clad building includes a live-in caretaker.
Situated on Upper Grosvenor Street, one of London's most sought-after addresses, this extraordinary residence is steps away from Hyde Park, and the finest restaurants, members clubs and boutiques Mayfair has to offer Exterior Interior Location
Value & comps
No previous sales on record.
Returns
Set an offer; the calculator follows it.
Short-let restrictions apply
We're still gathering serviced-accommodation data for this area.
Archie refurb estimate: a Pro feature
0.0% below asking
This is not financial or investment advice. Prop AI Deals is not authorised by the Financial Conduct Authority (FCA) to provide investment advice.
All investment calculators, property analyses, and AI-generated insights are for informational purposes only. Property investment carries risk and may result in financial loss. All calculations should be independently verified and you should consult with FCA-authorised financial advisers before making any investment decisions.
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
.png){kind=logo}
FAQ
About Flat 3, 17, Upper Grosvenor Street, London
Explore nearby
