21, Radnor Walk, SW3 4BP
21 Radnor Walk is a 159 m² / 1,711 sq ft terraced home in Sloane Square. It sold for £3,200,000 in April 2018. Indexed forward to today's value, that sale is roughly £3,207k. Recent local prices imply a broad valuation context of £2,396k to £3,255k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.
Property data
- Sale history
-
Date Paid price Annual growth After inflation Apr 2018 £3,200,000 3.5% 1.8% Oct 2011 £2,550,000 11.9% 8.8% Jul 2005 £1,265,000 12.0% 10.2% Sep 1996 £465,000 na na - Floor plan
-
Archived estate agent floor plan for 21, Radnor Walk.
- Internal area
- 159 square metres (1,711 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £20,125 per square metre (£1,870 per square foot) in Apr 2018. Indexed forward to today's value, this is roughly £20,172 per square metre (£1,874 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Apr 2018 £3,200,000 £20,126 £3,207,300 £20,172 Oct 2011 £2,550,000 £16,038 £2,933,187 £18,448 Jul 2005 £1,265,000 £7,956 £2,868,775 £18,043 Sep 1996 £465,000 £2,925 £2,528,028 £15,900 Calculated using the latest EPC internal area of 159 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 £3,207,300. 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 £15,070 and £20,470 per square metre (£1,400 and £1,901 per square foot). Based on an internal area of 159 m², this implies a valuation between £2,396,000 and £3,255,000. 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
- 3
- Type
- Terrace
- Council tax band
- H
- Plot size
- 79 square metres (850 square feet) - map showing freehold boundary lines
Archived listings
Planning applications
- Planning ref:
- February 2017 NMA/17/00016
- Type:
- Amendments or alterations arising from an existing or previous application
- Status:
- Application approved
- Address:
- 21 Radnor Walk, LONDON,
- Description:
- Non-material amendment to planning permission 13/00545 to allow changes to ground and first floors and garden
- Planning ref:
- December 2016 CL/16/07297
- Type:
- Outline application - proposal prior to a full application, including assessments and scoping opinions.
- Status:
- Application approved
- Address:
- 21 Radnor Walk, LONDON,
- Description:
- Confirmation that planning permission ref. PP/13/00545 has been lawfully implemented and remains extant in perpetuity. (Certificate of Lawful Existing Use or Development)
- Planning ref:
- February 2016 CON/15/07934
- Type:
- Discharge of conditions imposed on an existing application
- Status:
- Application approved with conditions
- Address:
- 21 Radnor Walk, LONDON,
- Description:
- Details required by condition 14 (desktop study, risk assessment) and 15 (remediation strategy) of planning permission 13/00545 (Demolition of rear ground, first and second additions including erection of rear single & three storey extension. Formation of basement with lightwells including alterations to rear fenestration. Air conditioning installations and limestone entrance steps)
- Planning ref:
- February 2016 PP/15/07772
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- 21 Radnor Walk, LONDON,
- Description:
- Removal of condition 10 (Eco homes) of planning permission 13/00545
- Planning ref:
- December 2015 CON/15/06684
- Type:
- Discharge of conditions imposed on an existing application
- Status:
- Application withdrawn before a decision was taken
- Address:
- 21 Radnor Walk, LONDON,
- Description:
- Details required by Conditions 14 (Contamination risk assessment) and 15 (remediation strategy for contamination risk) of planning permission PP/13/00545 (Demolition of rear ground, first and second additions including erection of rear single & three storey extension. Formation of basement with lightwells including alterations to rear fenestration. Air conditioning installations and limestone entrance steps). ***WITHDRAWN***
- Planning ref:
- April 2014 CON/14/01014
- Type:
- Discharge of conditions imposed on an existing application
- Status:
- Application approved with conditions
- Address:
- 21 Radnor Walk, LONDON,
- Description:
- Details required by condition 14 (desk top study and risk assessment) and 15 (remediation strategy for contamination and risks) of planning permission 13/00545 (Demolition of rear ground, first and second additions including erection of rear single & three storey extension. Formation of basement with lightwells including alterations to rear fenestration. Air conditioning installations and limestone entrance steps)
- Planning ref:
- January 2014 CON/13/06773
- Type:
- Discharge of conditions imposed on an existing application
- Status:
- Application approved with conditions
- Address:
- 21 Radnor Walk, LONDON,
- Description:
- Details required by conditions 5(a) and (b) (railing detail and finishes to frontage), 7 (construction traffic management plan), 8 (structural engineer appointment), and 14 and 15 (desk top study - contamination issues) of PP/13/00545 (Demolition of rear ground, first and second additions including erection of rear single & three storey extension. Formation of basement with lightwells including alterations to rear fenestration. Air conditioning installations and limestone entrance steps)
- Planning ref:
- March 2013 PP/13/00545
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- 21 Radnor Walk, LONDON,
- Description:
- Demolition of rear ground, first and second additions including erection of rear single & three storey extension. Formation of basement with lightwells including alterations to rear fenestration. Air conditioning installations and limestone entrance steps.
- Planning ref:
- August 2012 CC/12/02129
- Type:
- Heritage application - conservation issues and listed buildings
- Status:
- Application refused
- Address:
- 21 Radnor Walk, LONDON,
- Description:
- Demolition of three storeys, facade retention; Rebuild of three storeys with rear ground and second storey extensions. Basement extension with front and rear lightwells; Alterations to front boundary railings; Air conditioning installations , removal of chimney stacks and new roof terrace at main roof level.
- Planning ref:
- August 2012 CC/12/02134
- Type:
- Heritage application - conservation issues and listed buildings
- Status:
- Application refused
- Address:
- 21 Radnor Walk, LONDON,
- Description:
- Demolition of 3 storeys, facade retention; Rebuild of three storeys with rear ground and second storey extensions. Basement extension with front and rear lightwells; Alterations to front boundary railings; Air conditioning installations , removal of chimney stacks.
EPC Inspections
- Summary:
- 08 March 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:
- 159 sqm (1,711 square foot) total internal area
- Comments:
- Walls: Solid brick, with internal insulation. Roof: Pitched, no insulation (assumed). Heating: Boiler and radiators, mains gas.
- Summary:
- 05 March 2018 - energy performance certificate grade E
- 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:
- 159 sqm (1,711 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.
- Summary:
- 08 September 2011 - energy performance certificate grade E
- Reason for EPC:
- None
- Tenure:
- Owner-occupied
- Property type:
- None , has 6 habitable rooms. Estimated year built before 1900
- Area:
- 125 sqm (1,345 square foot) total internal area
- Comments:
- Summary:
- 09 March 2009 - energy performance certificate grade D
- Reason for EPC:
- None
- Tenure:
- Owner-occupied
- Property type:
- None , has 5 habitable rooms. Estimated year built before 1900
- Area:
- 125 sqm (1,345 square foot) total internal area
- Comments:
Frequently asked questions
21 Radnor Walk 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 £3,207,300.
- Based on an internal area of 159 m² and recent prices in Sloane Square, this implies a lower and upper quartile range from £2,396,000 to £3,255,000, using HouseMetric's implied valuation methodology.
According to HM Land Registry price paid data, 21 Radnor Walk last sold for
£3,200,000 in
April 2018.
HouseMetric shows 21 Radnor Walk as 159 m²
(1,711 sq ft), based on the latest internal area data available for this property.
The bedroom count is shown as 3 bedrooms. 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 08 March 2018.
EPC information comes from the public Energy Performance Certificate data for England and Wales.
When we last checked, 21 Radnor Walk was in council tax band H.
Council Tax bands can change, so check the latest
Valuation Office Agency Council Tax list.
21 Radnor Walk is in postcode SW3 4BP, in Sloane Square.
You can also view HouseMetric's sold-price page for
Radnor Walk, SW3 4BP
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 June 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.