66, Eaton Square, SW1W 9BQ
66 Eaton Square is a 131 m² / 1,410 sq ft flat in Sloane Square. It sold for £3,850,000 in December 2025. Indexed forward to today's value, that sale is roughly £3,517k. Recent local prices imply a broad valuation context of £1,324k to £2,902k 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 Dec 2025 £3,850,000 7.4% 3.0% Oct 2019 £2,490,000 na na - Floor plan
-
Archived estate agent floor plan for 66, Eaton Square.
- Internal area
- 131 square metres (1,410 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £29,389 per square metre (£2,730 per square foot) in Dec 2025. Indexed forward to today's value, this is roughly £26,848 per square metre (£2,494 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Dec 2025 £3,850,000 £29,389 £3,517,055 £26,848 Oct 2019 £2,490,000 £19,008 £2,062,515 £15,744 Calculated using the latest EPC internal area of 131 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 £3,517,055. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Sloane Square are now selling for between £10,110 and £22,150 per square metre (£939 and £2,057 per square foot). Based on an internal area of 131 m², this implies a valuation between £1,324,000 and £2,902,000. 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
- Planning ref:
- May 2024 24/03340/FULL
- Type:
- Full and householder planning application
- Status:
- Decision has yet to be made
- Address:
- 66 Eaton Square London
- Description:
- Installation of replacement entrance portico steps. Linked with 24/03341/LBC
- Planning ref:
- May 2024 24/03341/LBC
- Type:
- Heritage application - conservation issues and listed buildings
- Status:
- Decision has yet to be made
- Address:
- 66 Eaton Square London
- Description:
- Installation of replacement entrance portico steps. Linked with 24/03340/FULL
- Planning ref:
- August 2019 19/00765/LBC
- Type:
- Heritage application - conservation issues and listed buildings
- Status:
- Application approved
- Address:
- 66 Eaton Square Londo
- Description:
- Internal alterations including redecoration, replacement carpets with hardwood and stone floors, replacement kitchen and two bathrooms. Installation of air conditioning unit.
- Planning ref:
- September 2004 04/05902/LBC
- Type:
- Heritage application - conservation issues and listed buildings
- Status:
- Application approved
- Address:
- 66 Eaton Square Londo
- Description:
- Installation of domestic boiler flue terminal on rear elevation of 66 Eaton Square.
- Summary:
- 04 September 2024 - 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 4 habitable rooms. Estimated year built 1900 to 1929
- Area:
- 131 sqm (1,410 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: (another dwelling above). Heating: Boiler and radiators, mains gas.
66 Eaton 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 £3,517,055.
- Based on an internal area of 131 m² and recent prices in Sloane Square, this implies a lower and upper quartile range from £1,324,000 to £2,902,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.