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£3,250,000

Asking price

4 bed flat for sale Onslow Gardens, South Kensington, London

4 beds 3 baths Apartment

Leasehold

Added yesterday

About this property

Set within a handsome Grade II-listed stucco-fronted building on Onslow Gardens, this beautifully positioned four-bedroom duplex offers an exceptional opportunity to create a bespoke London residence. Retaining the architectural character of its period setting, the apartment provides a generous blank canvas for an incoming owner to realise their own vision. The accommodation is arranged across two floors, with four bedrooms offering well-proportioned private spaces.

Key features

High Ceilings
Patio
Grade II Listed
Garden Square View

Floorplan

Energy performance

C 70

Current

Potential

92+

81-91

81 B

69-80

70 C

55-68

39-54

21-38

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This home is rated band C, scoring 70 out of 100. The average British home is band D. Its certificate says it could reach band B (81) if the improvements it recommends were carried out.

Read from the certificate published with this listing, so it may not be the latest one. Check the government EPC register for the full certificate and its recommendations.

Price guide

This home

£1,276 / sq ft

Area average (sold)

£1,584 / sq ft

Price per area, sold homes nearby

£899 / sq ft

£1,276 / sq ft

£2,307 / sq ft

Lowest

This home

Highest

£1,276 per sq ft, below the middle of recent sales in SW7 (£899–£2,307, 10th–90th percentile, 360 sales over 24 months).

Lowest and highest are the 10th and 90th percentiles of 360 homes sold in SW7 over the last 24 months. This home's figure uses its asking price. All sold £/sq ft in SW7 →

Location

Onslow Gardens, South Kensington, London, SW7 3PY

Open map Street View

Council tax: Band D (Approx £1,667/year)

Mortgage and stamp duty

Property price £3,250,000

£1.6m £4.9m

Deposit10% £325,000

£0 £3.3m

Interest rate 4.5%

0.5% 15%

Repayment period 25 years

5 years 40 years

A £2,925,000 mortgage. Most lenders would want a household income of about £650,000 to support it.

A guide only, for a capital repayment mortgage. The rate you are offered and what you can borrow depend on your circumstances and a full application with a lender or broker. Your home may be repossessed if you do not keep up repayments on your mortgage.

Historic sold prices nearby

HM Land Registry sales in SW7 3PY. Floor areas from Energy Performance Certificates where matched.

Address	Type	Sold	Size	Size	£/sq ft	Price
Flat 12, 35, Onslow Gardens Flat / maisonette	Flat / maisonette	Mar 2026	1,076 sq ft £1,719/sq ft	1,076 sq ft	£1,719	£1,850,000
Flat 1, 42, Onslow Gardens Flat / maisonette	Flat / maisonette	Jul 2025	1,981 sq ft £1,515/sq ft	1,981 sq ft	£1,515	£3,000,000
Flat 6, 42, Onslow Gardens Flat / maisonette	Flat / maisonette	Nov 2024	1,206 sq ft £1,680/sq ft	1,206 sq ft	£1,680	£2,025,000
Flat 2, 38, Onslow Gardens Flat / maisonette	Flat / maisonette	Oct 2024	915 sq ft £2,071/sq ft	915 sq ft	£2,071	£1,895,000
Flat I, 46, Onslow Gardens Flat / maisonette	Flat / maisonette	Sept 2023	603 sq ft £2,488/sq ft	603 sq ft	£2,488	£1,500,000
43, Onslow Gardens Flat / maisonette	Flat / maisonette	Aug 2021	5,780 sq ft £1,990/sq ft	5,780 sq ft	£1,990	£11,500,000
Flat 10, 42, Onslow Gardens Flat / maisonette	Flat / maisonette	Jul 2021	1,184 sq ft £2,238/sq ft	1,184 sq ft	£2,238	£2,650,000
Flat 6, 47, Onslow Gardens Flat / maisonette	Flat / maisonette	Mar 2021	484 sq ft £1,455/sq ft	484 sq ft	£1,455	£705,000

All sales on Onslow Gardens → All sold prices in Kensington and Chelsea →

Area insights

The neighbourhood around this property.

Marketed by

United Kingdom Sotheby's International Realty, Kensington - United Kingdom Sotheby's International Realty

48-50 Kensington Church Street, London

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Onslow Gardens, London, SW7 3PY, photo 1

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