HM Land Registry records the plot of land for 42, Markham Square as measuring 106 m².

That makes it the 15th largest plot in the postcode, where 14 of the 15 other houses have recorded plot data.

42, Markham Square has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 15 Sep 2017.

The property is connected to mains gas and has some double glazing. It is heated using a boiler and radiators (mains gas).

Since 2007 48 properties similar to 42, Markham Square have sold within a radius of 240 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 10th September 2025, was 30, Smith Street, London, SW3 4EP, a freehold house which sold for £4,500,000.

Read more about house prices in SW3.

• Sold Sep 2025£4,500,000 | 5 Bed House30, Smith Street, London, SW3 4EP30, Smith Street, London, SW3 4EP
• Sold Jul 2025£5,100,000 | 5 Bed House47, Markham Square, London, SW3 4XA47, Markham Square, London, SW3 4XA
• Sold Jun 2025£4,550,000 | 5 Bed House8, Markham Square, London, SW3 4UY8, Markham Square, London, SW3 4UY
• Sold Sep 2024£5,350,000 | 5 Bed House17, Royal Avenue, London, SW3 4QE17, Royal Avenue, London, SW3 4QE
• Sold Oct 2023£5,375,000 | 5 Bed House22, Royal Avenue, London, SW3 4QF22, Royal Avenue, London, SW3 4QF
• Sold Jul 2023£5,750,000 | 5 Bed House21, Markham Square, London, SW3 4UY21, Markham Square, London, SW3 4UY
• Sold Jun 2023£4,475,000 | 5 Bed House13, Jubilee Place, London, SW3 3TD13, Jubilee Place, London, SW3 3TD
• Sold May 2022£4,700,000 | 4 Bed House33, Wellington Square, London, SW3 4NR33, Wellington Square, London, SW3 4NR
• Sold Feb 2022£4,550,000 | 4 Bed House31, St. Leonards Terrace, London, SW3 4QG31, St. Leonards Terrace, London, SW3 4QG
• Sold Aug 2021£5,800,000 | 5 Bed House6, Wellington Square, London, SW3 4NJ6, Wellington Square, London, SW3 4NJ
• Sold Jun 2021£5,500,000 | 5 Bed House9, Walpole Street, London, SW3 4QP9, Walpole Street, London, SW3 4QP
• Sold May 2021£5,295,000 | 5 Bed House41, Smith Terrace, London, SW3 4DH41, Smith Terrace, London, SW3 4DH
• Sold Apr 2021£4,730,000 | 5 Bed House39, Markham Street, London, SW3 3NR39, Markham Street, London, SW3 3NR
• Sold Mar 2021£5,200,000 | 5 Bed House32, Markham Square, London, SW3 4XA32, Markham Square, London, SW3 4XA
• Sold Mar 2021£5,400,000 | 5 Bed House18, Radnor Walk, London, SW3 4BN18, Radnor Walk, London, SW3 4BN
• Sold Mar 2020£5,700,000 | 4 Bed House33, Markham Square, London, SW3 4XA33, Markham Square, London, SW3 4XA
• Sold Sep 2018£6,525,000 | 5 Bed House41, Markham Square, London, SW3 4XA41, Markham Square, London, SW3 4XA
• Sold May 2013£6,000,000 | 5 Bed House34, Markham Square, London, SW3 4XA34, Markham Square, London, SW3 4XA
• Sold Jun 2008£3,825,000 | 5 Bed House43, Markham Square, London, SW3 4XA43, Markham Square, London, SW3 4XA
• Sold Sep 2007£4,651,000 | 5 Bed House35, Markham Square, London, SW3 4XA35, Markham Square, London, SW3 4XA

Of the 62 addresses on Markham Square, London, SW3, 42, Markham Square comes out as the 29th largest and the 36th most expensive in our analysis of the public data.

It is also £3.156m more expensive than the average property across the SW3 district.

• Marlborough Primary School

  300 m away
• St Joseph's Catholic Primary School

  400 m away
• Oratory Roman Catholic Primary School

  400 m away

• St. Thomas More Language College

  400 m away
• Saint John Bosco College

  1.8 km away
• Chelsea Academy

  1.9 km away

• Sloane Square

  |

  600 m away
• South Kensington

  |

  800 m away
• Knightsbridge

  |

  1.1 km away

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