20, First Street, SW3 2LD
20 First Street is a 141 m² / 1,518 sq ft terraced home in South Kensington. It sold for £3,500,000 in June 2017. Indexed forward to today's value, that sale is roughly £3,404k. Recent local prices imply a broad valuation context of £2,085k to £3,250k based on its internal area. The Land Registry and EPC data was last updated 2 July 2026.
- Sale history
-
£3,500,000 on Jun 2017
- Floor plan
-
Archived estate agent floor plan for 20, First Street.
- Internal area
- 141 square metres (1,518 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £24,822 per square metre (£2,306 per square foot) in Jun 2017. Indexed forward to today's value, this is roughly £24,142 per square metre (£2,243 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Jun 2017 £3,500,000 £24,823 £3,404,012 £24,142 Calculated using the latest EPC internal area of 141 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 £3,404,012. 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 £14,790 and £23,050 per square metre (£1,374 and £2,141 per square foot). Based on an internal area of 141 m², this implies a valuation between £2,085,000 and £3,250,000. 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
- 74 square metres (797 square feet) - map showing freehold boundary lines
- Planning ref:
- September 2016 PP/16/04092
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- 20 First Street, LONDON,
- Description:
- Variation of condition 2 (compliance with approved drawings) of planning permission 15/02611 (Mansard roof extension with dormers, lower ground floor rear extension, closet wing extension) to increase in height of approved roof dormers
- Planning ref:
- August 2016 CON/16/03185
- Type:
- Discharge of conditions imposed on an existing application
- Status:
- Application approved with conditions
- Address:
- 20 First Street, LONDON,
- Description:
- Details required by Condition 3 (submission of details) of planning permission PP/15/02611 (Mansard roof extension with front and rear dormer sash windows, full width lower ground floor rear extension, closet wing extension at ground and first floor level, lowering of front vaults and lightwell and introduction of lightwell stair)
- Planning ref:
- June 2015 PP/15/02611
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- 20 First Street, LONDON,
- Description:
- Mansard roof extension with front and rear dormer sash windows, full width lower ground floor rear extension, closet wing extension at ground and first floor level, lowering of front vaults and lightwell and introduction of lightwell stair
- Summary:
- 12 September 2016 - 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 5 habitable rooms. Estimated year built before 1900
- Area:
- 141 sqm (1,518 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: Roof room(s), insulated (assumed). Heating: Boiler and radiators, mains gas.
- Summary:
- 04 April 2014 - energy performance certificate grade E
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- Rental
- Tenure:
- Private rental
- Property type:
- Mid-Terrace House , has 4 habitable rooms. Estimated year built 1900 to 1929
- Area:
- 99 sqm (1,066 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: Flat, no insulation. Heating: Boiler and radiators, mains gas.
20 First Street 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 £3,404,012.
- Based on an internal area of 141 m² and recent prices in South Kensington, this implies a lower and upper quartile range from £2,085,000 to £3,250,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.