Property data
Sale history
Date Paid price Annual growth After inflation
Sep 2023 £2,750,000 -1.2% -3.9%
Jul 2013 £3,125,000 6.9% 4.1%
May 2006 £1,950,000 194.8% 187.8%
Sep 2005 £900,000 na na
Floor plan

Archived estate agent floor plan for Flat 8 61, Onslow Square.

Floorplan 61
View floorplan
Internal area
124 square metres (1,335 square feet) according to latest EPC inspection
Price per internal area

This property sold for £22,177 per square metre (£2,060 per square foot) in Sep 2023. Indexed forward to today's value, this is roughly £17,079 per square metre (£1,587 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Sep 2023 £2,750,000 £22,177 £2,117,819 £17,079
Jul 2013 £3,125,000 £25,202 £2,697,131 £21,751
May 2006 £1,950,000 £15,726 £3,538,971 £28,540
Sep 2005 £900,000 £7,258 £1,820,210 £14,679

Calculated using the latest EPC internal area of 124 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 £2,117,819. 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 £13,530 and £19,990 per square metre (£1,256 and £1,857 per square foot). Based on an internal area of 124 m², this implies a valuation between £1,678,000 and £2,479,000. 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
H
Archived listings
History:
Archived sales listing for Flat 8 61 Onslow Square. Advertised on multiple portals. It was reduced on 05/06/2023. It last appeared Nov 2023.
Photos:

There are 11 archived estate agent listing photos for Flat 8 61 Onslow Square.

Photos for 61 Onslow Square
View photos
Advertiser remarks:
  • 2 bedrooms
  • 2 bathrooms
Planning applications
Planning ref:
November 2024 CON/24/07088
Type:
Discharge of conditions imposed on an existing application
Status:
Application approved with conditions
Address:
Flat 8, 61 Onslow Square, LONDON,
Description:
Details required by condition 3 (submission of details) of listed building consent 24/03971 (Internal refurbishment and enlarging external doors to terrace at top floor level)

Planning ref:
November 2024 PP/24/05850
Type:
Full and householder planning application
Status:
Application approved
Address:
Flat 8, 61 Onslow Square, LONDON,
Description:
Replacement of 2 external doors

Planning ref:
August 2024 LB/24/03971
Type:
Heritage application - conservation issues and listed buildings
Status:
Application approved
Address:
Flat 8, 61 Onslow Square, LONDON,
Description:
Internal refurbishment and enlarging external doors to terrace at top floor level
EPC Inspections
Summary:
16 October 2008 - energy performance certificate grade D
Reason for EPC:
None
Tenure:
Private rental
Property type:
None , has 3 habitable rooms. Estimated year built before 1900
Area:
124 sqm (1,335 square foot) total internal area
Comments:
Frequently asked questions

Flat 8 61 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 £2,117,819.
  • Based on an internal area of 124 m² and recent prices in South Kensington, this implies a lower and upper quartile range from £1,678,000 to £2,479,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, Flat 8 61 Onslow Square last sold for £2,750,000 in September 2023.

HouseMetric shows Flat 8 61 Onslow Square as 124 m² (1,335 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 D, from an inspection dated 16 October 2008. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, Flat 8 61 Onslow Square was in council tax band H. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

Flat 8 61 Onslow Square is in postcode SW7 3LS, in South Kensington. You can also view HouseMetric's sold-price page for Onslow Square, SW7 3LS 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 1 June 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.