Flat 4 97, Onslow Square, SW7 3LU
Flat 4 97 Onslow Square is a 212 m² / 2,282 sq ft flat in South Kensington. It sold for £5,575,497 in May 2019. Indexed forward to today's value, that sale is roughly £4,644k. Recent local prices imply a broad valuation context of £2,868k to £4,238k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.
Property data
- Sale history
-
£5,575,497 on May 2019
- Floor plan
-
Archived estate agent floor plan for Flat 4 97, Onslow Square.
- Internal area
- 212 square metres (2,282 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £26,299 per square metre (£2,443 per square foot) in May 2019. Indexed forward to today's value, this is roughly £21,907 per square metre (£2,035 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm May 2019 £5,575,497 £26,300 £4,644,346 £21,907 Calculated using the latest EPC internal area of 212 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 £4,644,346. 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 212 m², this implies a valuation between £2,868,000 and £4,238,000. 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
- 3
- Type
- Flat
- Council tax band
- H
Archived listings
Planning applications
- Planning ref:
- January 2021 CON/20/06177
- Type:
- Discharge of conditions imposed on an existing application
- Status:
- Application approved with conditions
- Address:
- Flat 4, 97 Onslow Square, LONDON,
- Description:
- Details required by Condition 3 (submission of details - a) methodology and materials of works to front balcony surfacing, including drainage details) of Listed Building consent LB/19/05405 (Internal refurbishment and alterations, refurbishment of front fenestration and balcony, refurbishment and replacement of rear fenestration and guarding)
- Planning ref:
- September 2020 CON/20/03248
- Type:
- Discharge of conditions imposed on an existing application
- Status:
- Application approved with conditions
- Address:
- Flat 4, 97 Onslow Square, LONDON,
- Description:
- Details required by condition 3a (drawings of new cornice and/or ceiling rose, at 1:5 or 1:1 in profile with details of materials and method submitted to local planning authority and approved in writing before relevant part of work is begun) of listed building consent 20/01063 (Internal alterations including reinstatement of original plan layout of front reception room by removing partitions; enlargement of entrance hallway and reduction of bathroom 3 by removing partition and constructing lightweight partition; consolidation of heights of openings in hallway through party and spine walls.)
- Planning ref:
- September 2020 CON/20/03246
- Type:
- Discharge of conditions imposed on an existing application
- Status:
- Application approved with conditions
- Address:
- Flat 4, 97 Onslow Square, LONDON,
- Description:
- Details required by condition 3b (details of new cornices at 1:5 or 1:1 in profile with details of materials and methods as well as ceiling plans showing locations of retained historic cornices and proposed locations of new cornicing;) of listed building consent 19/05405 (Internal refurbishment and alterations, refurbishment of front fenestration and balcony, refurbishment and replacement of rear fenestration and guarding.)
- Planning ref:
- August 2020 CON/20/03232
- Type:
- Discharge of conditions imposed on an existing application
- Status:
- Application approved with conditions
- Address:
- Flat 4, 97 Onslow Square, LONDON,
- Description:
- Details required by condition 3 (Submission of details) of listed building consent 20/01063 (Internal alterations including reinstatement of original plan layout of front reception room by removing partitions; enlargement of entrance hallway and reduction of bathroom 3 by removing partition and constructing lightweight partition; consolidation of heights of openings in hallway through party and spine walls)
- Planning ref:
- April 2020 LB/20/01063
- Type:
- Heritage application - conservation issues and listed buildings
- Status:
- Application approved
- Address:
- Flat 4, 97 Onslow Square, LONDON,
- Description:
- Internal alterations including reinstatement of original plan layout of front reception room by removing partitions; enlargement of entrance hallway and reduction of bathroom 3 by removing partition and constructing lightweight partition; consolidation of heights of openings in hallway through party and spine walls.
- Planning ref:
- February 2020 CON/19/08484
- Type:
- Discharge of conditions imposed on an existing application
- Status:
- Application approved with conditions
- Address:
- Flat 4, 97 Onslow Square, LONDON,
- Description:
- Details required by condition 3c (all new external windows) and 3d (scope & methodology of window repair works) of listed building consent 19/05405 (internal refurbishment and alterations, refurbishment of front fenestration and balcony, refurbishment and replacement of rear fenestration and guarding)
- Planning ref:
- November 2019 LB/19/05405
- Type:
- Heritage application - conservation issues and listed buildings
- Status:
- Application approved
- Address:
- Flat 4, 97 Onslow Square, LONDON,
- Description:
- Internal refurbishment and alterations, refurbishment of front fenestration and balcony, refurbishment and replacement of rear fenestration and guarding.
- Planning ref:
- November 2019 PP/19/05404
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- Flat 4, 97 Onslow Square, LONDON,
- Description:
- Internal refurbishment and alterations, refurbishment of front fenestration and balcony, refurbishment and replacement of rear fenestration and guarding.
- Planning ref:
- October 2019 LB/19/05796
- Type:
- Heritage application - conservation issues and listed buildings
- Status:
- Application approved
- Address:
- Flat 4, 97 Onslow Square, LONDON,
- Description:
- Works including removal of non-historic wall finishes and building fabric to provide structural upgrades to internal partition walls
EPC Inspections
- Summary:
- 01 April 2019 - 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 6 habitable rooms. Estimated year built before 1900
- Area:
- 212 sqm (2,282 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 4 97 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 £4,644,346.
- Based on an internal area of 212 m² and recent prices in South Kensington, this implies a lower and upper quartile range from £2,868,000 to £4,238,000, using HouseMetric's implied valuation methodology.
According to HM Land Registry price paid data, Flat 4 97 Onslow Square last sold for
£5,575,497 in
May 2019.
HouseMetric shows Flat 4 97 Onslow Square as 212 m²
(2,282 sq ft), based on the latest internal area data available for this property.
The bedroom count is shown as 3 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 01 April 2019.
EPC information comes from the public Energy Performance Certificate data for England and Wales.
When we last checked, Flat 4 97 Onslow Square was in council tax band H.
Council Tax bands can change, so check the latest
Valuation Office Agency Council Tax list.
Flat 4 97 Onslow Square is in postcode SW7 3LU, in South Kensington.
You can also view HouseMetric's sold-price page for
Onslow Square, SW7 3LU
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.