Flat 4 81, Onslow Square, SW7 3LT
Flat 4 81 Onslow Square is a 134 m² / 1,442 sq ft flat in South Kensington. It sold for £3,325,000 in June 2021. Indexed forward to today's value, that sale is roughly £2,803k. Recent local prices imply a broad valuation context of £1,813k to £2,679k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.
- Sale history
-
£3,325,000 on Jun 2021
- Floor plan
-
Archived estate agent floor plan for Flat 4 81, Onslow Square.
- Internal area
- 134 square metres (1,442 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £24,813 per square metre (£2,305 per square foot) in Jun 2021. Indexed forward to today's value, this is roughly £20,920 per square metre (£1,944 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Jun 2021 £3,325,000 £24,813 £2,803,318 £20,920 Calculated using the latest EPC internal area of 134 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 £2,803,318. 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 134 m², this implies a valuation between £1,813,000 and £2,679,000. 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
- Summary:
- 21 May 2021 - 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 before 1900
- Area:
- 134 sqm (1,442 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: (another dwelling above). Heating: Community scheme.
- Summary:
- 06 January 2020 - energy performance certificate grade E
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- Rental
- Tenure:
- Private rental
- Property type:
- 2nd floor flat in an apartment block with 1 storeys , has 3 habitable rooms. Estimated year built 1900 to 1929
- Area:
- 128 sqm (1,378 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: (another dwelling above). Heating: Community scheme.
- Summary:
- 03 November 2008 - energy performance certificate grade D
- Reason for EPC:
- None
- Tenure:
- Social rental
- Property type:
- None , has 3 habitable rooms. Estimated year built before 1900
- Area:
- 133 sqm (1,432 square foot) total internal area
- Comments:
Flat 4 81 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 £2,803,318.
- Based on an internal area of 134 m² and recent prices in South Kensington, this implies a lower and upper quartile range from £1,813,000 to £2,679,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.