HM Land Registry records the plot of land for 20, First Street as measuring 74 m².

That makes it the 20th largest plot in the postcode, where 24 of the 26 other houses have recorded plot data.

20, First Street has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 12 Sep 2016.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

The most recent sale of 20, First Street completed on 5th June 2017 at £3,500,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have dropped by 22.2% over the period since June 2017.

• Sold Jun 2017£3,500,000

Since 2016 80 properties similar to 20, First Street have sold within a radius of 250 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 7th April 2026, was 39, Hasker Street, London, SW3 2LE, a freehold house which sold for £3,050,000.

Read more about house prices in SW3.

• Sold Apr 2026£3,050,000 | 3 Bed House39, Hasker Street, London, SW3 2LE39, Hasker Street, London, SW3 2LE
• Sold Feb 2026£3,125,000 | 4 Bed House14, Ovington Street, London, SW3 2JB14, Ovington Street, London, SW3 2JB
• Sold Jan 2026£3,700,000 | 4 Bed House26, Ovington Street, London, SW3 2JB26, Ovington Street, London, SW3 2JB
• Sold Nov 2025£3,300,000 | 3 Bed HouseAvenue House, 97, Walton Street, London, SW3 2HPAvenue House, 97, Walton Street, London, SW3 2HP
• Sold Oct 2025£3,250,000 | 3 Bed House36, Hasker Street, London, SW3 2LQ36, Hasker Street, London, SW3 2LQ
• Sold Jul 2025£4,175,000 | 4 Bed House12, Ovington Street, London, SW3 2JB12, Ovington Street, London, SW3 2JB
• Sold Jul 2025£3,700,000 | 4 Bed House14, First Street, London, SW3 2LD14, First Street, London, SW3 2LD
• Sold Mar 2025£3,000,000 | 3 Bed House17, Ovington Street, London, SW3 2JA17, Ovington Street, London, SW3 2JA
• Sold Feb 2025£3,400,000 | 4 Bed House31, Ovington Street, London, SW3 2JA31, Ovington Street, London, SW3 2JA
• Sold Oct 2024£3,400,000 | 3 Bed House34, First Street, London, SW3 2LD34, First Street, London, SW3 2LD
• Sold Jun 2024£3,800,000 | 3 Bed House50, Hasker Street, London, SW3 2LQ50, Hasker Street, London, SW3 2LQ
• Sold Apr 2024£4,350,000 | 3 Bed House51, Ovington Street, London, SW3 2JA51, Ovington Street, London, SW3 2JA
• Sold Jun 2023£3,250,000 | 3 Bed House33, Ovington Street, London, SW3 2JA33, Ovington Street, London, SW3 2JA
• Sold Jan 2023£3,850,000 | 4 Bed House28, Ovington Street, London, SW3 2JB28, Ovington Street, London, SW3 2JB
• Sold May 2022£3,650,000 | 3 Bed House23, Hasker Street, London, SW3 2LE23, Hasker Street, London, SW3 2LE
• Sold Mar 2022£2,750,000 | 3 Bed House45, Hasker Street, London, SW3 2LE45, Hasker Street, London, SW3 2LE
• Sold Feb 2022£3,250,000 | 3 Bed House23, Ovington Street, London, SW3 2JA23, Ovington Street, London, SW3 2JA
• Sold Nov 2019£2,925,000 | 3 Bed House3, Hasker Street, London, SW3 2LE3, Hasker Street, London, SW3 2LE
• Sold Oct 2018£3,450,000 | 3 Bed House16, First Street, London, SW3 2LD16, First Street, London, SW3 2LD
• Sold Mar 2016£2,975,000 | 3 Bed House13, Hasker Street, London, SW3 2LE13, Hasker Street, London, SW3 2LE

Of the 53 addresses on First Street, London, SW3, 20, First Street comes out as the 22nd largest and the 22nd most expensive in our analysis of the public data.

It is also £1.362m more expensive than the average property across the SW3 district.

• Marlborough Primary School

  200 m away
• St Joseph's Catholic Primary School

  300 m away
• Oratory Roman Catholic Primary School

  600 m away

• St. Thomas More Language College

  300 m away
• Westminster City School

  1.9 km away
• Pimlico Academy

  2.1 km away

• South Kensington

  |

  600 m away
• Knightsbridge

  |

  600 m away
• Sloane Square

  |

  600 m away

The flood risk here is rated Very Low, based on Environment Agency data.