Flat 3, 3, Montagu Square has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 18 Aug 2022.

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

Flat 3, 3, Montagu Square last changed hands on 13th January 2023, selling for £2,500,000. The transaction was logged as a leasehold flat by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has dropped by 17.3% since January 2023.

• Sold Jan 2023£2,500,000
• Sold May 2015£1,925,000

Land Registry records and our Estate Agent network show 40 sales of comparable properties within 270 metres of Flat 3, 3, Montagu Square since 2012.

Most recently, Flat 6, 35, Bryanston Square, London, W1H 2DZ, a leasehold flat, sold at £1,775,000 on the 19th December 2025.

Read more about house prices in W1.

• Sold Dec 2025£1,775,000 | 3 Bed FlatFlat 6, 35, Bryanston Square, London, W1H 2DZFlat 6, 35, Bryanston Square, London, W1H 2DZ
• Sold Jun 2025£1,200,000 | 3 Bed FlatFlat 4, 58, Montagu Square, London, W1H 2LSFlat 4, 58, Montagu Square, London, W1H 2LS
• Sold Apr 2025£2,600,000 | 3 Bed Flat57 Portman Towers, George Street, London, W1H 7HW57 Portman Towers, George Street, London, W1H 7HW
• Sold Jan 2025£2,750,000 | 3 Bed FlatFlat B, 44, Montagu Square, London, W1H 2LNFlat B, 44, Montagu Square, London, W1H 2LN
• Sold Jan 2025£2,750,000 | 3 Bed FlatFlat 3, 34, Bryanston Square, London, W1H 2DYFlat 3, 34, Bryanston Square, London, W1H 2DY
• Sold Oct 2024£2,500,000 | 3 Bed Flat2 Portman Towers, George Street, London, W1H 7HN2 Portman Towers, George Street, London, W1H 7HN
• Sold Jun 2024£2,000,000 | 3 Bed FlatFlat 68, 15, Portman Square, London, W1H 6LLFlat 68, 15, Portman Square, London, W1H 6LL
• Sold Feb 2024£1,450,000 | 3 Bed FlatFlat 2, 58, Montagu Square, London, W1H 2LSFlat 2, 58, Montagu Square, London, W1H 2LS
• Sold Feb 2024£2,700,000 | 3 Bed FlatFlat 2, 7, Montagu Square, London, W1H 2LBFlat 2, 7, Montagu Square, London, W1H 2LB
• Sold Oct 2021£1,750,000 | 3 Bed FlatFlat 3, 5, Bryanston Square, London, W1H 2DHFlat 3, 5, Bryanston Square, London, W1H 2DH
• Sold Aug 2021£1,850,000 | 3 Bed FlatFlat 14, Montagu Court 27-29, Montagu Square, London, W1H 2LGFlat 14, Montagu Court 27-29, Montagu Square, London, W1H 2LG
• Sold Jun 2021£950,000 | 4 Bed FlatFlat 1, 11, Montagu Square, London, W1H 2LDFlat 1, 11, Montagu Square, London, W1H 2LD
• Sold Jan 2021£3,500,000 | 3 Bed FlatFlat 27, 15, Portman Square, London, W1H 6LJFlat 27, 15, Portman Square, London, W1H 6LJ
• Sold Jan 2021£32,870,000 | 3 Bed Flat16, Bryanston Square, London, W1H 2DW16, Bryanston Square, London, W1H 2DW
• Sold Jan 2020£2,000,000 | 3 Bed FlatFlat 5, 4, Bryanston Square, London, W1H 2DHFlat 5, 4, Bryanston Square, London, W1H 2DH
• Sold Oct 2018£2,500,000 | 3 Bed FlatFlat 18, Montagu Court 27-29, Montagu Square, London, W1H 2LGFlat 18, Montagu Court 27-29, Montagu Square, London, W1H 2LG
• Sold Sep 2017£2,150,000 | 3 Bed FlatFlat 5, Montagu Court 27-29, Montagu Square, London, W1H 2LGFlat 5, Montagu Court 27-29, Montagu Square, London, W1H 2LG
• Sold Nov 2014£134,558 | 3 Bed Flat20, Bryanston Mews West, London, W1H 2DD20, Bryanston Mews West, London, W1H 2DD
• Sold Oct 2012£1,993,995 | 3 Bed FlatFlat 4, 5, Montagu Square, London, W1H 2LAFlat 4, 5, Montagu Square, London, W1H 2LA
• Sold Apr 2012£1,995,000 | 3 Bed FlatFlat 2, 54, Montagu Square, London, W1H 2LPFlat 2, 54, Montagu Square, London, W1H 2LP

Our analysis of the public data ranks Flat 3, 3, Montagu Square as the 94th largest and the 93rd most expensive of the 237 addresses on Montagu Square, London, W1.

Against the W1 postcode district average, it is £1k less expensive than the typical property.

• Hampden Gurney CofE Primary School

  400 m away
• St Vincent's Catholic Primary School

  400 m away
• St Mary's Bryanston Square CofE School

  500 m away

• The St Marylebone CofE School

  700 m away
• Marylebone Boys' School

  1.3 km away
• Maria Fidelis Catholic School FCJ

  2.3 km away

• Marble Arch

  |

  400 m away
• Baker Street

  |

  600 m away
• Marylebone

  |

  700 m away

Environment Agency data suggests this area has a Very Low risk of flooding.