According to the Land Registry and our network of Estate Agents, there have been 526 property sales within 330 metres of 43-45, Portman Square over the last 2 years.

The most recent example is Flat 40, Orchard Court, Portman Square, London, W1H 6LF, a leasehold flat which sold for £6,700,000 on the 18th September 2023.

Read more about house prices in W1.

• Sold Sep 2023£6,700,000 | 4 Bed FlatFlat 40, Orchard Court, Portman Square, London, W1H 6LFFlat 40, Orchard Court, Portman Square, London, W1H 6LF
• Sold Nov 2022£10,000,000 | 4 Bed FlatFlat 23, Orchard Court, Portman Square, London, W1H 6LEFlat 23, Orchard Court, Portman Square, London, W1H 6LE
• Sold Mar 2022£5,400,000 | 4 Bed FlatFlat 42, Orchard Court, Portman Square, London, W1H 6LFFlat 42, Orchard Court, Portman Square, London, W1H 6LF

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

Our network of Estate Agents reports 1 let within 330 metres of 43-45, Portman Square over the last 2 years.

Most recently, Apartment 2.02, 65, Duke Street, London, W1K 5NX, a leasehold flat, was let by Maplewood Property in June 2025.

• 
  Let agreed Jun 2025£ Undisclosed | 3 Bed FlatApartment 2.02, 65, Duke Street, London, W1K 5NXApartment 2.02, 65, Duke Street, London, W1K 5NX

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

• St Vincent's Catholic Primary School

  400 m away
• Hampden Gurney CofE Primary School

  700 m away
• St George's Hanover Square CofE Primary School

  800 m away

• The St Marylebone CofE School

  800 m away
• Marylebone Boys' School

  1.6 km away
• Westminster City School

  2.2 km away

• Marble Arch

  |

  300 m away
• Bond Street

  |

  400 m away
• Bond Street (Elizabeth line)

  |

  400 m away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.