Flat 3 5, Onslow Square, SW7 3NJ
Flat 3 5 Onslow Square is a 112 m² / 1,206 sq ft flat in South Kensington. It sold for £518,619 in September 2012. Indexed forward to today's value, that sale is roughly £713k. Recent local prices imply a broad valuation context of £1,515k to £2,239k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.
- Sale history
-
Date Paid price Annual growth After inflation Sep 2012 £518,619 -31.7% -33.7% Oct 2009 £1,600,000 5.8% 3.2% May 2005 £1,248,000 na na - Internal area
- 112 square metres (1,206 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £4,630 per square metre (£430 per square foot) in Sep 2012. Indexed forward to today's value, this is roughly £6,367 per square metre (£592 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Sep 2012 £518,619 £4,631 £713,136 £6,367 Oct 2009 £1,600,000 £14,286 £1,953,973 £17,446 May 2005 £1,248,000 £11,143 £2,463,922 £21,999 Calculated using the latest EPC internal area of 112 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 £713,136. 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 112 m², this implies a valuation between £1,515,000 and £2,239,000. 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
- na
- Type
- Flat
- Council tax band
- na
- Summary:
- 07 January 2022 - energy performance certificate grade D
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- marketed sale
- Tenure:
- Private rental
- Property type:
- 2nd floor flat in an apartment block with 1 storeys , has 5 habitable rooms. Estimated year built 1900 to 1929
- Area:
- 117 sqm (1,259 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: (another dwelling above). Heating: Community scheme.
- Summary:
- 24 June 2009 - energy performance certificate grade E
- Reason for EPC:
- None
- Tenure:
- Private rental
- Property type:
- None , has 3 habitable rooms. Estimated year built before 1900
- Area:
- 112 sqm (1,206 square foot) total internal area
- Comments:
Flat 3 5 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 £713,136.
- Based on an internal area of 112 m² and recent prices in South Kensington, this implies a lower and upper quartile range from £1,515,000 to £2,239,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.