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See how verdicts work11-bedroom flat · SW7 3PY
For saleListed 501 days
Opportunity summary
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About
A rarely available exciting Grade II listed Freehold investment and development opportunity in the heart of South Kensington, SW7.
Description This imposing part stucco fronted period conversion presents an exciting investment and development opportunity.
The property is an exceptional, Grade II listed, freehold building, with access to private communal gardens.
Currently split into seven leasehold apartments comprising: Flat A: A lower ground floor two bedroom apartment, each with their own en suite bathroom, a reception room, separate kitchen, hall, cloakroom, vault storage and individual street access.
Flat 1: A raised ground and part upper and lower ground floor three bedroom, three bathroom apartment with an impressive reception room, separate dining room, hall, cloakroom and separate kitchen.
Note: Flat A & Flat 1 intercommunicate following part implementation of pp/09/02032 & lb/09/02033 (see Development opportunity section).
Flat 2: An impressive first floor one bedroom apartment with an en-suite bathroom and an open plan reception/kitchen containing historic features, guest W/C, mezzanine and access to front balcony and two 1st floor rear terraces.
Flat 3: A second floor two bedroom apartment with a reception room, separate kitchen and an en suite bathroom and guest bathroom.
Flat 4: A third floor two bedroom apartment with an open plan reception/kitchen, en suite bathroom and guest bathroom.
Flat 5: A fourth floor one bedroom apartment with an open plan reception/kitchen, bathroom, mezzanine and access onto a flat roof.
Flat 6: A fourth floor one bedroom apartment with an open plan reception/kitchen with access to balcony with City-facing views, bathroom and mezzanine.
The building presents an exciting opportunity to create high-end rental apartments in the heart of one of London's most desirable areas.
Development opportunity Flat A and Flat 1 are a linked maisonette arising from part implementation of pp/09/02032 & lb/09/02033 allowing the refurbishment of basement, ground and first floor accommodation including the extension of first floor bathroom at rear, replacement of existing roof, addition of rooflights over the existing lightwell, construction of new staircase and a series of internal alterations.
Recently, an alternative planning permission has been granted on Flat A and Flat 1 to refurbish basement, lower ground, ground and first floor along with external rear terrace.
Installation of rooflights over two rear lightwell areas. Creation of access stair to rear terrace. Planning reference: Pp/24/08530 and lb/2408531. Benefits include: • New accommodation (c.
250 sq ft) to be constructed incl.
In lightwells; • internal adjustments to create a 4-bed maisonette; plus, • additional reception room (or 5th bedroom) at upper ground floor; • a new stair-flight, allowing access to the rear terraces at 1st floor level, via new sliding glazed roof lights over the main staircase; • clean-air circulation and air-handling and cooling installation; • upgrading to x2-glazing to the rear of the first floor; • upgrading 1st floor terrace finishes, balustrading and insulation.
Location Located in the heart of South Kensington, Onslow Gardens is one of London's most prestigious residential addresses.
Transport connections are excellent, with South Kensington Underground Station (Piccadilly, District, and Circle Lines) just 0.3 miles away-approximately a 6-minute walk.
Gloucester Road Station is also nearby, approx. 0.4 miles or a 7-minute walk, providing additional Piccadilly, District, and Circle Line services. Earl’s Court Station lies within 0.7 miles.
This prime location places you within easy reach of Chelsea, Knightsbridge, Hyde Park, and the West End, while also providing quick access to Heathrow via the Piccadilly Line.
Square Footage: 7,081 sq ft Additional Info Council Tax Bands: Flat A = Band G Flat 1 = Band H Flat 2 = Band G Flat 3 = Band G Flat 4 = Band G Flat 5 = Band F Flat 6 = Band F EPC: Flat A = EPC C Flat 1 = EPC D Flat 2 = EPC C Flat 3 = EPC C Flat 4 = EPC E Flat 5 = EPC D Flat 6 = EPC D Please speak to the us about Stamp Duty costs for this property.
Value & comps
No previous sales on record.
Returns
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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
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FAQ
About 47, Onslow Gardens, London
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