4-bedroom flat · W1K 2XL
For saleListed 281 days
Opportunity summary
See Archie’s verdict, returns by strategy and what to check before viewing.
About
A beautifully presented 4 bedroom apartment of 2,627 Square feet on the fourth floor of a period, purpose built apartment block directly overlooking the hidden Mount Street Gardens.
51 South Street is often regarded as one of the most sought-after buildings in Mayfair, with particular focus on the rarely available apartments overlooking the serene Mount Street Gardens.
This apartment is well proportioned and has impressive ceiling heights throughout as well as full height French windows opening on to a decorative balcony onto a view which would have changed little in over a century.
Garden views can be taken in from the double reception room, principal bedroom suite and guest bedroom ensuring plenty of natural light throughout.
2 further bedroom suites can be found over the upper floor of the apartment.
The Mount Street Gardens are a tranquil space, initially created in 1889 and have been enjoyed by Mayfair residents and the local business community as a central location in which to meet and relax ever since.
Accommodation Entrance Hall Four Bedroom suites Double Reception Room Kitchen Lift 24 Hour Uniformed Porter Asking Price £8,950,000 Approx 990 year lease
Value & comps
No previous sales on record.
Returns
Set an offer; the calculator follows it.
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 advisors 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)
FAQ
About Flat 18, 51, South Street, London
Explore nearby