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Not valued

SW7 3QF

Onslow Gardens, South Kensington, London, SW7

2 Beds
2 Baths
150 m² Floor area
Type Flat
Listed 05 Aug 2026
Asking price £3,250,000
Price per m² £21,667 / m²

Positioned on one of South Kensington’s most distinguished garden squares, this exceptional penthouse apartment crowns an elegant period building on Onslow Gardens, offering refined lateral living, direct lift access and expansive private terraces.

Occupying the upper floors and extending to approximately 1,619 sq ft, the apartment is centred around a striking 33 ft reception and kitchen space, a beautifully proportioned room with impressive ceiling heights and an abundance of natural light.

The fourth floor also hosts two generous bedrooms. The 21 ft principal suite is elegantly arranged with a private en suite bathroom, while the second bedroom benefits from a walk in wardrobe and access to a separate bathroom.
A sculptural spiral staircase leads to the upper level, where two interconnecting roof terraces unfold. Generous in size and wonderfully private, they offer far reaching views across South Kensington’s iconic rooftops, a rare outdoor setting for al-fresco dining, sunset drinks, or quiet retreat above the city.

Onslow Gardens is synonymous with grand architecture and prime positioning. Moments from the boutiques and cafés of the King’s Road, Old Brompton Road and Fulham Road, and within easy reach of Gloucester Road and South Kensington Underground stations (District, Circle and Piccadilly lines), the address perfectly balances connectivity with village-style charm.

How the asking price has moved

Aug 2026
£3,250,000
Listed at original asking price

What similar homes actually sold for

Nearby Land Registry transactions — the data behind our fair price estimate.

Address Sold price Date Type
Flat 5, 49, 49 ONSLOW GARDENS, SW7 3QF £1,050,000 Dec 2025 Flat
Flat 8, 49, 49 ONSLOW GARDENS, SW7 3QF £1,600,000 May 2024 Flat
Flat B, 55, 55 ONSLOW GARDENS, SW7 3QF £980,000 Mar 2024 Flat
Flat 9, 49, 49 ONSLOW GARDENS, SW7 3QF £722,500 Jul 2023 Flat
Flat 9, 49, 49 ONSLOW GARDENS, SW7 3QF £547,500 Jul 2023 Flat
Flat 7, 55, 55 ONSLOW GARDENS, SW7 3QF £1,130,000 Jun 2023 Flat
Flat 1, 53, 53 ONSLOW GARDENS, SW7 3QF £1,400,000 Feb 2023 Flat
Flat 9, 49, 49 ONSLOW GARDENS, SW7 3QF £680,000 Jun 2022 Flat
Flat 2, 55, 55 ONSLOW GARDENS, SW7 3QF £2,400,000 Jul 2021 Flat
Flat 12, 49, 49 ONSLOW GARDENS, SW7 3QF £1,395,000 Nov 2020 Flat
Flat 10, 49, 49 ONSLOW GARDENS, SW7 3QF £1,400,000 Oct 2020 Flat
Flat B, 59, 59 ONSLOW GARDENS, SW7 3QF £1,250,000 Apr 2018 Flat
Source: HM Land Registry · SW7 3QF · Sorted by date

Onslow Gardens, South Kensington, London, SW7

We don't have enough nearby Land Registry sales matched to EPC floor-area data for this postcode and property type to calculate a fair price estimate. All other details are still available.

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About this valuation

Fair price calculated from HM Land Registry sold prices in the same postcode area, adjusted by the UK House Price Index, and multiplied by the EPC-declared floor area of 150 m². Updated daily.