9a, Chester Square Mews, SW1W 9DS

9a Chester Square Mews is a 50 m² / 538 sq ft flat in Sloane Square. It sold for £830,000 in September 2013. Indexed forward to today's value, that sale is roughly £1,045k. Recent local prices imply a broad valuation context of £465k to £1,242k based on its internal area. The Land Registry and EPC data was last updated 1 November 2026.

Property data
Sale history
£830,000 on Sep 2013
Floor plan

Archived estate agent floor plan for 9a, Chester Square Mews.

Floorplan 9a
View floorplan
Internal area
50 square metres (538 square feet) according to latest EPC inspection
Price per internal area

This property sold for £16,600 per square metre (£1,542 per square foot) in Sep 2013. Indexed forward to today's value, this is roughly £20,902 per square metre (£1,942 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Sep 2013 £830,000 £16,600 £1,045,105 £20,902

Calculated using the latest EPC internal area of 50 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 £1,045,105. 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 £9,300 and £24,850 per square metre (£863 and £2,308 per square foot). Based on an internal area of 50 m², this implies a valuation between £465,000 and £1,242,000. 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
1
Type
Flat
Council tax band
E
Archived listings
History:
Archived rental listing for 9a Chester Square Mews. Advertised on multiple portals. It was added on 17/06/2022. It last appeared Jun 2022.
Photos:

There are 9 archived estate agent listing photos (taken in December 2013) for 9a Chester Square Mews.

Photos for 9a Chester Square Mews
View photos
Advertiser remarks:
  • 1 bedrooms
  • 1 bathrooms
Planning applications
Planning ref:
May 2024 24/03758/P3JPA
Type:
Outline application - proposal prior to a full application, including assessments and scoping opinions.
Status:
Decision has yet to be made
Address:
9A Chester Square Mews London
Description:
Notification for Prior Approval for change of use of ground floor (Class E) into one bedroom flat (Class C3) under Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).
EPC Inspections
Summary:
04 April 2023 - energy performance certificate grade D
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
marketed sale
Tenure:
Owner-occupied
Property type:
1st floor flat in an apartment block with 1 storeys , has 2 habitable rooms. Estimated year built before 1900
Area:
50 sqm (538 square foot) total internal area
Comments:
Walls: Solid brick, as built, no insulation (assumed). Roof: (another dwelling above). Heating: Boiler and radiators, mains gas.
Summary:
07 January 2013 - energy performance certificate grade C
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
marketed sale
Tenure:
Unknown
Property type:
2nd floor flat in an apartment block with 1 storeys , has 2 habitable rooms. Estimated year built 1900 to 1929
Area:
50 sqm (538 square foot) total internal area
Comments:
Walls: Solid brick, as built, no insulation (assumed). Roof: (another dwelling above). Heating: Boiler and radiators, mains gas.
Summary:
30 November 2009 - energy performance certificate grade C
Reason for EPC:
None
Tenure:
Owner-occupied
Property type:
None , has 2 habitable rooms. Estimated year built before 1900
Area:
49 sqm (527 square foot) total internal area
Comments:
Frequently asked questions

9a Chester Square Mews 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 £1,045,105.
  • Based on an internal area of 50 m² and recent prices in Sloane Square, this implies a lower and upper quartile range from £465,000 to £1,242,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 9a Chester Square Mews last sold for £830,000 in September 2013.

HouseMetric shows 9a Chester Square Mews as 50 m² (538 sq ft), based on the latest internal area data available for this property. The bedroom count is shown as 1 bedroom. 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 04 April 2023. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 9a Chester Square Mews was in council tax band E. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

9a Chester Square Mews is in postcode SW1W 9DS, in Sloane Square. You can also view HouseMetric's sold-price page for Chester Square Mews, SW1W 9DS or analysis of the Sloane Square 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 November 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.