Our Data Sources
Flat 1, 9, Montagu Square has a single entry in the Land Registry from April 2024 and a single entry in the EPC database dated December 2022.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For Flat 1, 9, Montagu Square, we estimate a market value of £4,401,466 and a rental value of £14,412 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £3,898,442 and £12,765 per month respectively.
Energy Efficiency
Flat 1, 9, Montagu Square has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 16 Dec 2022.
The property is connected to mains gas and has some double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of Flat 1, 9, Montagu Square completed on 2nd April 2024 at £2,950,000 and was recorded by HM Land Registry as a leasehold flat.
Since 1995 this is the property's only sale.
Values of comparable properties have dropped by 2.4% over the period since April 2024.
- Sold Apr 2024£2,950,000
Similar Properties Sold Nearby
Over the past 2 years 19 properties similar to Flat 1, 9, Montagu Square have sold within a radius of 250 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 25th November 2025, was 87 Portman Towers, George Street, London, W1H 7HW, a leasehold flat which sold for £7,000,000.
Read more about house prices in W1.
- Sold Nov 2025£7,000,000 | 4 Bed Flat87 Portman Towers, George Street, London, W1H 7HW87 Portman Towers, George Street, London, W1H 7HW
- Sold Nov 2022£4,550,000 | 4 Bed FlatFlat 14, 35, Bryanston Square, London, W1H 2DZFlat 14, 35, Bryanston Square, London, W1H 2DZ
- Sold Jun 2022£3,200,000 | 4 Bed FlatFlat 1, 7, Bryanston Square, London, W1H 2DHFlat 1, 7, Bryanston Square, London, W1H 2DH
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 237 addresses on Montagu Square, London, W1, Flat 1, 9, Montagu Square comes out as the 39th largest and the 12th most expensive in our analysis of the public data.
It is also £2.054m more expensive than the average property across the W1 district.
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Schools Nearby
- Hampden Gurney CofE Primary School400 m away
- St Vincent's Catholic Primary School400 m away
- St Mary's Bryanston Square CofE School400 m away
- The St Marylebone CofE School700 m away
- Marylebone Boys' School1.3 km away
- Maria Fidelis Catholic School FCJ2.3 km away
More reading links
Public Transport Nearby
- Marble Arch|400 m away
- Baker Street|600 m away
- Marylebone|600 m away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












