Flat 3 73, Onslow Square, SW7 3LS
Flat 3 73 Onslow Square is a 69 m² / 743 sq ft flat in South Kensington. It sold for £390,000 in April 2001. Indexed forward to today's value, that sale is roughly £1,075k. Recent local prices imply a broad valuation context of £934k to £1,379k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.
- Sale history
-
£390,000 on Apr 2001
- Internal area
- 69 square metres (743 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £5,652 per square metre (£525 per square foot) in Apr 2001. Indexed forward to today's value, this is roughly £15,577 per square metre (£1,447 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Apr 2001 £390,000 £5,652 £1,074,843 £15,577 Calculated using the latest EPC internal area of 69 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 £1,074,843. 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 69 m², this implies a valuation between £934,000 and £1,379,000. 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
- Title number
- BGL56463
- Tenure
- Leasehold/other
- Title address
- Flat 3, 73 Onslow Square, London and basement storeroom and coal cellar 3
- Owner
-
WALLENIUS (UK) LIMITED
(Company reference number: 1971125)
Proprietor address: 4 Hill Street, London W1J 5NE, 110 Cannon Street, London EC4N 6AR
Ownership record added to Land Registry's corporate ownership dataset 18 Jan 2006
- Summary:
- 12 August 2021 - energy performance certificate grade F
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- Rental
- Tenure:
- Private rental
- Property type:
- 3rd floor flat on the top floor in an apartment block with 1 storeys , has 2 habitable rooms. Estimated year built before 1900
- Area:
- 69 sqm (743 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: Flat, no insulation (assumed). Heating: Community scheme.
- Summary:
- 10 May 2011 - energy performance certificate grade E
- Reason for EPC:
- None
- Tenure:
- Private rental
- Property type:
- None , has 2 habitable rooms. Estimated year built before 1900
- Area:
- 63 sqm (678 square foot) total internal area
- Comments:
Flat 3 73 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 £1,074,843.
- Based on an internal area of 69 m² and recent prices in South Kensington, this implies a lower and upper quartile range from £934,000 to £1,379,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.