21, Carlyle Square, SW3 6EY
21 Carlyle Square is a 543 m² / 5,845 sq ft terraced home in South Kensington. It sold for £20,000,000 in August 2025. Indexed forward to today's value, that sale is roughly £18,862k. Recent local prices imply a broad valuation context of £8,981k to £12,820k based on its internal area. The Land Registry and EPC data was last updated 2 July 2026.
- Sale history
-
Date Paid price Annual growth After inflation Aug 2025 £20,000,000 2.7% -0.3% Nov 2010 £13,600,000 na na - Floor plan
-
Archived estate agent floor plan for 21, Carlyle Square.
- Internal area
- 543 square metres (5,845 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £36,832 per square metre (£3,422 per square foot) in Aug 2025. Indexed forward to today's value, this is roughly £34,736 per square metre (£3,227 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Aug 2025 £20,000,000 £36,832 £18,861,824 £34,736 Nov 2010 £13,600,000 £25,046 £16,547,674 £30,475 Calculated using the latest EPC internal area of 543 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 £18,861,824. 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 £16,540 and £23,610 per square metre (£1,536 and £2,193 per square foot). Based on an internal area of 543 m², this implies a valuation between £8,981,000 and £12,820,000. 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
- 6
- Type
- Terrace
- Council tax band
- H
- Planning ref:
- April 2019 ARB/19/02100
- Type:
- Tree and hedge works
- Status:
- Application approved
- Address:
- 21 Carlyle Square, LONDON,
- Description:
- Prune 1 x Oak
- Planning ref:
- April 2019 ARB/19/02019
- Type:
- Tree and hedge works
- Status:
- Application approved
- Address:
- 21 Carlyle Square, LONDON,
- Description:
- Prune 1 x Ash (rear)
- Planning ref:
- July 2012 ARB/12/00425
- Type:
- Tree and hedge works
- Status:
- Application approved
- Address:
- 21 Carlyle Square, LONDON
- Description:
- Prune 1 x Ash and 1 x Variegated Sycamore (rear).
- Planning ref:
- July 2012 ARB/12/00446
- Type:
- Tree and hedge works
- Status:
- Application approved
- Address:
- 21 Carlyle Square, LONDON
- Description:
- Prune 1 x Ash (rear).
- Planning ref:
- June 2012 ARB/12/00385
- Type:
- Tree and hedge works
- Status:
- Application approved
- Address:
- 21 Carlyle Square, LONDON
- Description:
- Prune 1 x Ash (rear).
- Planning ref:
- May 2011 CL/11/01417
- Type:
- Outline application - proposal prior to a full application, including assessments and scoping opinions.
- Status:
- Application withdrawn before a decision was taken
- Address:
- 21 Carlyle Square, LONDON
- Description:
- Lawful Development Certificate for proposed rear extension. ***WITHDRAWN***
- Planning ref:
- May 2011 PP/11/01413
- Type:
- Full and householder planning application
- Status:
- Application withdrawn before a decision was taken
- Address:
- 21 Carlyle Square, LONDON
- Description:
- Extension at lower ground floor to rear and various works to garden area. New rooflights to 2nd floor and roof including extension (roof) at ground level to be used as terrace with a cast iron balcony. ***WITHDRAWN***
- Planning ref:
- July 2006 PP/06/01501
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- 21 Carlyle Square, LONDON
- Description:
- Erection of a new front boundary and gate
- Planning ref:
- June 2006 ARB/06/00325
- Type:
- Tree and hedge works
- Status:
- Application approved
- Address:
- 21 Carlyle Square, LONDON
- Description:
- FELL x Crataegus (front). FELL x 1 Ligustrum, x 1 Syringa, x 1 Laburnum, x 1 Viburnum tinus and x 1 unknown species (rear).
- Planning ref:
- February 2005 PP/04/02937
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- 21 Carlyle Square, LONDON
- Description:
- Enlargement of rear window openings, replacement of steel garden stair with access stair and gallery and excavation of existing rear and front garden lightwells in association with general refurbishment works and conversion to a single dwelling house.
- Summary:
- 16 February 2023 - energy performance certificate grade D
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- Marketed sale
- Tenure:
- Owner-occupied
- Property type:
- Semi-Detached House , has 12 habitable rooms. Estimated year built before 1900
- Area:
- 543 sqm (5,845 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: Pitched, 150 mm loft insulation. Heating: Boiler and radiators, mains gas.
- Summary:
- 27 February 2009 - energy performance certificate grade E
- Reason for EPC:
- None
- Tenure:
- Owner-occupied
- Property type:
- None , has 12 habitable rooms. Estimated year built before 1900
- Area:
- 524 sqm (5,640 square foot) total internal area
- Comments:
21 Carlyle 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 £18,861,824.
- Based on an internal area of 543 m² and recent prices in South Kensington, this implies a lower and upper quartile range from £8,981,000 to £12,820,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.