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£316,000 below fair value

SW7 3LY

Onslow Gardens, South Kensington, London

3 Beds
2 Baths
145 m² Floor area
Type Flat
Listed 15 May 2026
Asking price £3,000,000
Price per m² £22,414 / m²

This marvellous upper maisonette apartment benefits from LIFT ACCESS as well as exceptional structural bones, the luminescent living room boasts three large windows that allow light to pour in from the southerly aspect as well as a central period fireplace. There is a bright, separate and modernised kitchen that is well proportioned and accommodates a spacious dining area.
The apartment has 3 bedrooms; the principal bedroom has an en-suite bathroom with double sinks a additionally there is a Juliette balcony that adorns the principal suite. The are two additional double bedrooms located on the same floor, both with built in wardrobes offering ample storage. one bedroom provides access to the attic this is a rare find and great for extra storage space. The family bathroom in the hallway is well equipped with a bath / shower to accommodate these additional bedrooms
On the top floor there is a large south facing roof terrace and a second access to the attic. The roof terrace has been newly tiled and enjoys sought after views over the neighbourhood and communal gardens whilst still offering rare privacy.

Onslow Gardens is the stalwart address for apartments in South Kensington. Nestled quietly between the Old Brompton Road, Fulham Road and Gloucester road, it is an address that is very close to many brilliant boutique shops, restaurants, preparatory and senior schools with South Kensington or Gloucester Road Underground stations very nearby (Piccadilly, District & Circle Lines). There is a saturday farmers market on Bute Street that that the new owner can enjoy just moments away.

How the asking price has moved

May 2026
£3,250,000
Listed at original asking price
Jun 2026
£3,000,000
Current 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 3, 6, 6 ONSLOW GARDENS, SW7 3LY £2,650,000 Jun 2023 Flat
Flat 1, 6, 6 ONSLOW GARDENS, SW7 3LY £5,350,000 Apr 2021 Flat
Flat 11, 5, 5 ONSLOW GARDENS, SW7 3LY £1,919,000 Mar 2021 Flat
Flat 3, 6, 6 ONSLOW GARDENS, SW7 3LY £2,300,000 Mar 2019 Flat
Source: HM Land Registry · SW7 3LY · Sorted by date

Onslow Gardens, South Kensington, London

Our fair price estimate
£3,316,000
Nearby sold prices per m² × UK HPI × 145 m² floor area (EPC-declared)
Asking price £3,000,000
Fair price £3,316,000
Difference ↓ £316,000 under
Price per m² £22,414 / m²
Contact landlord
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 145 m². Updated daily.