Flat 24, 27 Onslow Square, London, SW7 3NH is a leasehold flat built between 1976-1982. The property offers approximately 1,755 square feet of living space and is situated on the 5th floor. In this location, apartments of similar size usually have six bedrooms.

The estimated current market value of the property is £2,544,724 , which equates to approximately £1,450 per square foot. It was last sold on 27 May 2005 for £1,200,000. Since then, the value has increased by £1,344,724, representing a 112.1% increase, or approximately 5.3% per year.

The current estimated value of £2,544,724 is:

  • 19.9% higher than the average property price on Onslow Square
  • 84.0% higher than the average in the SW7 3NH postcode area
  • and 214.4% higher than the average price for London as a whole

At the most recent EPC inspection on 31 May 2023, the property was recorded as rented.

View sold house prices in SW7 3NH

Building approximate location

About Property

Type
Flat
Built
1976-1982
Interior Size
1755 sq ft
Tenure
Leasehold
Floor level
5th floor
Price (estimate)
£2,544,724
Price Per sq ft (estimate)
£1,450
Bedroom Count (estimate)
6 bedrooms

EPC Summary

Flat 24, 27 Onslow Square, London, Kensington And Chelsea, Greater London, SW7 3NH has an Energy Performance Certificate (EPC) rating of D, based on the latest assessment carried out on 31 May 2023.

This property is heated by a shared community system (community scheme). Community heating means the heat is supplied from a central source serving multiple homes. A community heating scheme is used to provide hot water. The windows are mostly double glazed.

Heating Type
Community scheme
Good
Hot Water
Community scheme
Good
Roof
Flat, limited insulation (assumed)
Poor
Walls
Cavity wall, as built, partial insulation (assumed)
Average
Windows
Mostly double glazing
Average
Lighting
Low energy lighting in all fixed outlets
Very Good

Compared to SW7 3NH

1 st / 18
Price Rank
84% higher than average
1 st / 18
Size Rank
79% bigger than average
10 th / 18
Price Per Sq FT Rank
3% higher than average

Sale History

Today
£2,544,724
streetscan.co.uk estimate
+112 %
27 May 2005
£1,200,000
Leasehold

Flood Risk for this Property

Flood risk from rivers and the sea
Very low flood risk
Flood risk from surface water
Very low flood risk
Surface water flood hazard
No mapped risk

* Results are based on Environment Agency flood risk mapping for the property UPRN where available. They are indicative and should not be treated as a site-specific flood survey.

Flood risk from rivers and the sea

This property has very low flood risk from rivers and the sea.

River and sea flooding includes flooding caused by overflowing rivers, estuaries, tidal waters and coastal surges.

Flood risk from surface water

This property has very low surface water flood risk.

Surface water flooding can happen when heavy rainfall overwhelms drains, roads, gardens or other hard surfaces.

Flood depth indicators

Rivers and Sea
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk
Surface Water
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk

Area Insights

Similar Properties Sold Nearby

rooms: 4
size: 1539 sq ft
sale price: £2,500,000
sale date: 15 Aug 2025
rooms: 5
size: 1668 sq ft
sale price: £2,288,000
sale date: 31 Jul 2024
rooms: 5
size: 1744 sq ft
sale price: £2,495,000
sale date: 16 Oct 2023
rooms: 5
size: 1722 sq ft
sale price: £2,250,000
sale date: 20 Apr 2023
rooms: 5
size: 1518 sq ft
sale price: £2,500,000
sale date: 21 Sep 2022

Data Sources

The property at Flat 24, 27 Onslow Square, London, SW7 3NH appears once in HM Land Registry records, with the transaction recorded on 27 May 2005. It also has a single Energy Performance Certificate (EPC) recorded on 31 May 2023. We use this information to estimate the property's characteristics, flood risk profile and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0 .

StreetScan.co.uk is not affiliated with, endorsed by, or associated with HM Land Registry, DESNZ, MHCLG, Defra or the Environment Agency.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure that the information provided on this website is current and accurate. However, no warranties or representations are made regarding its completeness, accuracy, suitability or reliability. Property values, flood risk assessments and other derived information are estimates based on publicly available datasets and should not be relied upon as professional, legal, surveying, environmental, financial or insurance advice. StreetScan.co.uk expressly disclaims all liability for any loss, damage, cost or expense arising directly or indirectly from the use of, or reliance upon, information provided on this website.