4, Montagu Square has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 19 Dec 2016.

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

4, Montagu Square last changed hands on 12th July 2001, selling for £1,200,000. The transaction was logged as a leasehold flat by HM Land Registry.

In total it has sold twice since 1995.

• Sold Jul 2001£1,200,000
• Sold Mar 1998£183,000

Land Registry records and our Estate Agent network show 34 sales of comparable properties within 270 metres of 4, Montagu Square since 2010.

Most recently, Flat 3, 2, Montagu Square, London, W1H 2LA, a leasehold flat, sold at £2,800,000 on the 16th September 2025.

Read more about house prices in W1.

• Sold Sep 2025£2,800,000 | 3 Bed FlatFlat 3, 2, Montagu Square, London, W1H 2LAFlat 3, 2, Montagu Square, London, W1H 2LA
• 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 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 Aug 2023£2,100,000 | 3 Bed Flat77 Portman Towers, George Street, London, W1H 7HW77 Portman Towers, George Street, London, W1H 7HW
• Sold Jan 2023£2,500,000 | 3 Bed FlatFlat 3, 3, Montagu Square, London, W1H 2LAFlat 3, 3, Montagu Square, London, W1H 2LA
• 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 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£3,380,000 | 3 Bed FlatFlat 2, 40, Montagu Square, London, W1H 2LLFlat 2, 40, Montagu Square, London, W1H 2LL
• 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 Oct 2014£2,200,000 | 3 Bed FlatFlat 4, 7, Bryanston Square, London, W1H 2DHFlat 4, 7, Bryanston Square, London, W1H 2DH
• Sold Jan 2014£3,450,000 | 3 Bed FlatFlat 4, 18, Montagu Square, London, W1H 2LEFlat 4, 18, Montagu Square, London, W1H 2LE
• Sold Nov 2013£1,100,000 | 3 Bed FlatFlat 1, 14, Bryanston Square, London, W1H 2DNFlat 1, 14, Bryanston Square, London, W1H 2DN
• 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
• Sold Dec 2010£1,400,000 | 3 Bed FlatFlat 5, 54, Montagu Square, London, W1H 2LPFlat 5, 54, Montagu Square, London, W1H 2LP
• Sold Jun 2010£1,695,000 | 3 Bed FlatFlat 3, 13, Montagu Square, London, W1H 2LDFlat 3, 13, Montagu Square, London, W1H 2LD

Our analysis of the public data ranks 4, Montagu Square as the 80th largest and the 89th most expensive of the 237 addresses on Montagu Square, London, W1.

Against the W1 postcode district average, it is £67k more 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.