Our Data Sources
Flat 69, 15, Portman Square has 41 entries in the Land Registry , most recently in July 2012 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate Flat 69, 15, Portman Square would be worth £1,701,255, with a potential rental value of £7,160 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £1,506,826, with a rental value of £6,342 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Sold Prices
Flat 69, 15, Portman Square last changed hands on 3rd July 2012, selling for £1,650,000. The transaction was logged as a leasehold flat by HM Land Registry.
In total it has sold 4 times since 1995.
The market for similar properties has risen by 3.5% since July 2012.
- Sold Jul 2012£1,650,000
- Sold Jul 2007£950,000
- Sold Apr 2003£525,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 56 sales of comparable properties within 320 metres of Flat 69, 15, Portman Square across the last 2 years.
Most recently, Flat 2, 3, Montagu Square, London, W1H 2LA, a leasehold flat, sold at £1,270,000 on the 24th July 2025.
Read more about house prices in W1.
- Sold Jul 2025£1,270,000 | 3 Bed FlatFlat 2, 3, Montagu Square, London, W1H 2LAFlat 2, 3, Montagu Square, London, W1H 2LA
- Sold Jul 2023£1,950,000 | 2 Bed FlatFlat 26, 15, Portman Square, London, W1H 6LJFlat 26, 15, Portman Square, London, W1H 6LJ
- Sold May 2015£2,000,000 | 2 Bed FlatFlat 42, 15, Portman Square, London, W1H 6LJFlat 42, 15, Portman Square, London, W1H 6LJ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks Flat 69, 15, Portman Square as the 148th largest and the 168th most expensive of the 269 addresses on Portman Square, London, W1.
Against the W1 postcode district average, it is £518k less expensive than the typical property.
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Schools Nearby
- St Vincent's Catholic Primary School300 m away
- Hampden Gurney CofE Primary School600 m away
- St Mary's Bryanston Square CofE School700 m away
- The St Marylebone CofE School700 m away
- Marylebone Boys' School1.5 km away
- Maria Fidelis Catholic School FCJ2.2 km away
More reading links
Public Transport Nearby
- Marble Arch|400 m away
- Bond Street|500 m away
- Bond Street (Elizabeth line)|500 m away
Available Internet Speeds
Ofcom's latest figures show poor internet coverage in this area, which may mean weak or no connectivity.
According to recent data from Ofcom, Slow/none Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
