Our Data Sources
Flat 67, 15, Portman Square has 21 entries in the Land Registry , most recently in July 2021 and a single entry in the EPC database dated August 2013.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If Flat 67, 15, Portman Square is in very good condition we estimate a sale value of £1,377,204 and a rental value of £5,845 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £1,219,810 and a rental value of £5,177 per month.
Energy Efficiency
Flat 67, 15, Portman Square has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 22 Aug 2013.
The property is not connected to mains gas and has single glazed windows. It is heated using Community scheme.
Sold Prices
According to HM Land Registry, Flat 67, 15, Portman Square was last sold on 20th July 2021 for £1,700,000 and was recorded as a leasehold flat.
The property has had 2 sales since 1995.
Since July 2021, the market for similar properties has dropped by 18.0%.
- Sold Jul 2021£1,700,000
- Sold Feb 2000£275,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 46 sales of properties similar to Flat 67, 15, Portman Square within a radius of 320 metres over the last 2 years.
The most recent example is Flat 11, Wendover Court, Chiltern Street, London, W1U 7NN, a leasehold flat which sold for £1,250,000 on the 12th June 2025.
Read more about house prices in W1.
- Sold Jun 2025£1,250,000 | 2 Bed FlatFlat 11, Wendover Court, Chiltern Street, London, W1U 7NNFlat 11, Wendover Court, Chiltern Street, London, W1U 7NN
- Sold Jun 2023£1,350,000 | 2 Bed FlatFlat 3, 1, Bryanston Square, London, W1H 2DHFlat 3, 1, Bryanston Square, London, W1H 2DH
- Sold Sep 2021£1,725,000 | 2 Bed FlatFlat 2, Fitzhardinge House, Portman Square, London, W1H 6LQFlat 2, Fitzhardinge House, Portman Square, London, W1H 6LQ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Portman Square, London, W1 has a total of 269 addresses. According to our analysis of all the public data, Flat 67, 15, Portman Square is the 205th largest and the 211th most expensive property on the street.
When compared to the postcode district it is £827k less expensive than the average property in W1.
More reading links
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
According to recent data from Ofcom, there is poor internet coverage in this area which may result in poor or no internet connectivity.
According to recent data from Ofcom, Slow/none Broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












