Our Data Sources
Flat 1, 18, Sumner Place has no records in the Land Registry and a single entry in the EPC database dated April 2024.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
In very good condition, we estimate Flat 1, 18, Sumner Place would be worth £3,842,932, with a potential rental value of £10,497 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £3,403,740, with a rental value of £9,297 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
Flat 1, 18, Sumner Place has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 12 Apr 2024.
The property is connected to mains gas and has some double glazing. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 13 sales of comparable properties within 270 metres of Flat 1, 18, Sumner Place since 2007.
Most recently, 60, Rose Square, London, SW3 6RS, a leasehold flat, sold at £3,650,000 on the 22nd September 2025.
Read more about house prices in SW7.
- Sold Sep 2025£3,650,000 | 3 Bed Flat60, Rose Square, London, SW3 6RS60, Rose Square, London, SW3 6RS
- Sold Jul 2025£2,190,000 | 3 Bed FlatFlat 1, 23, Sumner Place, London, SW7 3EGFlat 1, 23, Sumner Place, London, SW7 3EG
- Sold Mar 2025£3,500,000 | 3 Bed FlatFlat 3, 26, Onslow Gardens, London, SW7 3AGFlat 3, 26, Onslow Gardens, London, SW7 3AG
- Sold Sep 2024£2,600,000 | 3 Bed Flat38, Rose Square, London, SW3 6RS38, Rose Square, London, SW3 6RS
- Sold Aug 2021£11,500,000 | 4 Bed Flat43, Onslow Gardens, London, SW7 3PY43, Onslow Gardens, London, SW7 3PY
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £2,187,278, ranging from £1,202,854 to £5,332,070.
- Flat 3, 18 Sumner Place
2 Bed Flat | 0 m | Est. Value: £1,449,915
- Flat 4, 18 Sumner Place
2 Bed Flat | 0 m | Est. Value: £1,329,242
- Flat 2, 18 Sumner Place
2 Bed Flat | 0 m | Est. Value: £1,377,475
- Flat 4, 19 Sumner Place
2 Bed Flat | 6 m | Est. Value: £1,329,242
- Flat 1, 19 Sumner Place
3 Bed Flat | 6 m | Est. Value: £3,333,694
Location Comparison
Our analysis of the public data ranks Flat 1, 18, Sumner Place as the 20th largest and the 19th most expensive of the 45 addresses on Sumner Place, London, SW7.
Against the SW7 postcode district average, it is £1.597m more expensive than the typical property.
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Schools Nearby
- Our Lady of Victories RC Primary School300 m away
- Oratory Roman Catholic Primary School400 m away
- Marlborough Primary School600 m away
- St. Thomas More Language College900 m away
- Chelsea Academy1.7 km away
- The London Oratory School1.8 km away
More reading links
Public Transport Nearby
- South Kensington|200 m away
- Gloucester Road|500 m away
- Knightsbridge|1.2 km away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.





