Flat 2 52, Onslow Square, SW7 3NX

Flat 2 52 Onslow Square is a 113 m² / 1,216 sq ft flat in South Kensington. It sold for £2,650,000 in October 2018. Indexed forward to today's value, that sale is roughly £2,238k. Recent local prices imply a broad valuation context of £1,513k to £2,257k based on its internal area. The Land Registry and EPC data was last updated 2 July 2026.

Property data
Sale history
£2,650,000 on Oct 2018

*This price paid record has been flagged by Land Registry as a 'Category B: Additional Price Paid entry'. This could be due to a variety of reasons, such as the sale being a buy-to-let purchase, a repossession or a transfer to a limited company. When Land Registry suspects that a sale does not reflect full market value (e.g. part-ownership or right to buy), these transactions can be flagged as well. For this reason, we exclude them from our area statistics.

Internal area
113 square metres (1,216 square feet) according to latest EPC inspection
Price per internal area

This property sold for £23,451 per square metre (£2,179 per square foot) in Oct 2018. Indexed forward to today's value, this is roughly £19,808 per square metre (£1,840 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Oct 2018 £2,650,000 £23,451 £2,238,257 £19,808

Calculated using the latest EPC internal area of 113 m². Earlier sale dates may not have had the same measured area available.

Valuation
The most recent sale price indexed forward to today's value is £2,238,257. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in South Kensington are now selling for between £13,390 and £19,970 per square metre (£1,243 and £1,855 per square foot). Based on an internal area of 113 m², this implies a valuation between £1,513,000 and £2,257,000. Treat this as context only. For a valuation using hand-picked comparable sales, use the Advanced search tool — create a shortlist of similar condition homes, then export a valuation report.
Bedrooms
2
Type
Flat
Council tax band
G
Company ownership
Title number
BGL126288
Tenure
Leasehold/other
Title address
Flat 2, 52 Onslow Square, London
Owner
GREEN JADE PROPERTIES INVESTMENT LIMITED
Incorporated in BRITISH VIRGIN ISLANDS
Proprietor address: Flat 1, 5 St. Georges Terrace, London NW1 8XH
Price paid on title: £2,650,000
Ownership record added to Land Registry's corporate ownership dataset 08 Feb 2019
Planning applications
Planning ref:
May 2020 CON/20/01054
Type:
Discharge of conditions imposed on an existing application
Status:
Application approved with conditions
Address:
Flat 2, 52 Onslow Square, LONDON,
Description:
Details required by condition 2 (submission of details) of listed building consent 19/04509 (Internal refurbishment of flat to include relocation of kitchen (utilising existing pipe runs), replacement of modern doors, creation of double door opening, installation of new bathroom (reusing existing kitchen pipe runs), re-wiring and new carpets)
Planning ref:
October 2019 LB/19/04509
Type:
Heritage application - conservation issues and listed buildings
Status:
Application approved
Address:
Flat 2, 52 Onslow Square, LONDON,
Description:
Internal refurbishment of flat to include relocation of kitchen (utilising existing pipe runs), replacement of modern doors, creation of double door opening, installation of new bathroom (reusing existing kitchen pipe runs), re-wiring and new carpets
EPC Inspections
Summary:
17 August 2020 - energy performance certificate grade C
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
Marketed sale
Tenure:
Owner-occupied
Property type:
2nd floor flat in an apartment block with 1 storeys , has 3 habitable rooms. Estimated year built 1900 to 1929
Area:
112 sqm (1,206 square foot) total internal area
Comments:
Walls: Solid brick, as built, no insulation (assumed). Roof: (another dwelling above). Heating: Community scheme.
Summary:
23 May 2018 - energy performance certificate grade D
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
Marketed sale
Tenure:
Owner-occupied
Property type:
2nd floor flat in an apartment block with 1 storeys , has 3 habitable rooms. Estimated year built before 1900
Area:
113 sqm (1,216 square foot) total internal area
Comments:
Walls: Solid brick, as built, no insulation (assumed). Roof: (another dwelling above). Heating: Community scheme.
Frequently asked questions

Flat 2 52 Onslow Square is worth whatever price a willing buyer and seller agree upon. However, the following can provide useful context.

  • HouseMetric estimates the most recent sale price indexed forward to today's value is £2,238,257.
  • Based on an internal area of 113 m² and recent prices in South Kensington, this implies a lower and upper quartile range from £1,513,000 to £2,257,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, Flat 2 52 Onslow Square last sold for £2,650,000 in October 2018.

HouseMetric shows Flat 2 52 Onslow Square as 113 m² (1,216 sq ft), based on the latest internal area data available for this property. The bedroom count is shown as 2 bedrooms. Bedroom numbers can come from a previous estate agency listing, an EPC record, or an estimate based on the size of the property.

The latest EPC rating shown by HouseMetric is C, from an inspection dated 17 August 2020. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, Flat 2 52 Onslow Square was in council tax band G. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

Flat 2 52 Onslow Square is in postcode SW7 3NX, in South Kensington. You can also view HouseMetric's sold-price page for Onslow Square, SW7 3NX or analysis of the South Kensington property market.

HouseMetric combines HM Land Registry price paid data, Energy Performance Certificate data and Ordnance Survey/open data. The data were last updated 2 July 2026. Figures such as indexed values and local valuation ranges are calculated estimates for context, while official records can change as public datasets are updated.

For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.