Our Data Sources
Flat 90, 15, Portman Square has no records in the the Land Registry and a single entry in the EPC database dated October 2021.
We combine this information with public data 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
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 90, 15, Portman Square, we estimate a market value of £1,087,729 and a rental value of £4,791 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £963,417 and £4,244 per month respectively.
Energy Efficiency
Flat 90, 15, Portman Square has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 01 Oct 2021.
The property is connected to mains gas and has single glazed windows. It is heated using Community scheme.
Similar Properties Sold Nearby
Over the past 2 years 37 properties similar to Flat 90, 15, Portman Square have sold within a radius of 320 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 14th December 2023, was Flat 89, 15, Portman Square, London, W1H 6LL, a leasehold flat which sold for £1,340,000.
Read more about house prices in W1.
- Sold Dec 2023£1,340,000 | 2 Bed FlatFlat 89, 15, Portman Square, London, W1H 6LLFlat 89, 15, Portman Square, London, W1H 6LL
- Sold Nov 2023£1,200,000 | 2 Bed FlatFlat 96, 15, Portman Square, London, W1H 6LLFlat 96, 15, Portman Square, London, W1H 6LL
- Sold Mar 2021£1,350,000 | 2 Bed FlatFlat 101, 15, Portman Square, London, W1H 6LLFlat 101, 15, Portman Square, London, W1H 6LL
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Of the 269 addresses on Portman Square, London, W1, Flat 90, 15, Portman Square comes out as the 223rd largest and the 228th most expensive in our analysis of the public data.
It is also £1.102m less expensive than the average property across the W1 district.
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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
Internet coverage here is poor, based on recent Ofcom data, and connectivity may be weak or unavailable.
According to recent data from Ofcom, Slow/none Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












