12, Markham Square, SW3 4UY
12 Markham Square is a 279 m² / 3,003 sq ft terraced home in Sloane Square. It sold for £8,500,000 in March 2025. Indexed forward to today's value, that sale is roughly £8,351k. Recent local prices imply a broad valuation context of £4,004k to £5,747k based on its internal area. The Land Registry and EPC data was last updated 8 October 2026.
- Sale history
-
Date Paid price Annual growth After inflation Mar 2025 £8,500,000 9.4% 5.4% Aug 2018 £4,700,000 na na - Floor plan
-
Archived estate agent floor plan for 12, Markham Square.
- Internal area
- 279 square metres (3,003 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £30,465 per square metre (£2,830 per square foot) in Mar 2025. Indexed forward to today's value, this is roughly £29,931 per square metre (£2,781 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Mar 2025 £8,500,000 £30,466 £8,350,687 £29,931 Aug 2018 £4,700,000 £16,846 £4,951,357 £17,747 Calculated using the latest EPC internal area of 279 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 £8,350,687. 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 £14,350 and £20,600 per square metre (£1,333 and £1,913 per square foot). Based on an internal area of 279 m², this implies a valuation between £4,004,000 and £5,747,000. 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
- 5
- Type
- Terrace
- Council tax band
- H
- Plot size
- 109 square metres (1,173 square feet) - map showing freehold boundary lines
- Planning ref:
- July 2019 PP/19/03303
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- 12 Markham Square, LONDON,
- Description:
- Installation of air conditioning unit in rear garden at lower ground floor level within acoustic enclosure
- Planning ref:
- April 2019 PP/19/01657
- Type:
- Full and householder planning application
- Status:
- Application withdrawn before a decision was taken
- Address:
- 12 Markham Square, LONDON,
- Description:
- Installation of air conditioning condenser plant on rear balcony at third floor level with acoustic enclosure, timber trellis and planters around the balcony edge
- Planning ref:
- February 2019 PP/18/08400
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- 12 Markham Square, LONDON,
- Description:
- Variation of condition 2 (compliance with approved drawings) of planning permission 18/04254 (Creation of traditional mansard roof extension, insertion of rooflights at roof and second floor level, installation of steps to garden, and alterations to rear fenestration) to reconfigure the fenestration on the infill extension, to the rear of the building
- Planning ref:
- December 2018 NMA/18/07275
- Type:
- Amendments or alterations arising from an existing or previous application
- Status:
- Application approved
- Address:
- 12 Markham Square, LONDON,
- Description:
- Non-material amendment to planning permission 18/04254 (Creation of traditional mansard roof extension, insertion of rooflights at roof and second floor level, installation of steps to garden, and alterations to rear fenestration). To the addition of rainwater pipe (in cast iron painted black) with hopper head to front elevation; removal of redundant soil vent and rainwater pipes to rear elevation; reduction in size of first floor sash window and reconfiguration of rear steps to the garden.
- Planning ref:
- September 2018 PP/18/04254
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- 12 Markham Square, LONDON,
- Description:
- Creation of traditional mansard roof extension, insertion of rooflights at roof and second floor level, installation of steps to garden, and alterations to rear fenestration.
- Summary:
- 04 February 2021 - energy performance certificate grade C
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- marketed sale
- Tenure:
- Owner-occupied
- Property type:
- Mid-Terrace House , has 7 habitable rooms. Estimated year built before 1900
- Area:
- 279 sqm (3,003 square foot) total internal area
- Comments:
- Walls: Solid brick, with internal insulation. Roof: Flat, insulated (assumed). Heating: Boiler and radiators, mains gas.
- Summary:
- 19 February 2018 - energy performance certificate grade D
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- marketed sale
- Tenure:
- Owner-occupied
- Property type:
- Mid-Terrace House , has 6 habitable rooms. Estimated year built before 1900
- Area:
- 220 sqm (2,368 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: Flat, no insulation (assumed). Heating: Boiler and radiators, mains gas.
12 Markham 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 £8,350,687.
- Based on an internal area of 279 m² and recent prices in Sloane Square, this implies a lower and upper quartile range from £4,004,000 to £5,747,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.