Flat 7, 23 Lowndes Square, London, SW1X 9HD is a leasehold flat built between 1900-1929. The property offers approximately 850 square feet of living space and is situated on the 2nd floor of a 1-storey building. In this location, apartments of similar size usually have two bedrooms.

The estimated current market value of the property is £1,563,792 , which equates to approximately £1,839 per square foot. It was last sold on 5 Jul 2001 for £615,000. Since then, the value has increased by £948,792, representing a 154.3% increase, or approximately 6.2% per year.

The current estimated value of £1,563,792 is:

  • 54.7% lower than the average property price on Lowndes Square
  • 82.3% lower than the average in the SW1X 9HD postcode area
  • and 93.2% higher than the average price for London as a whole

At the most recent EPC inspection on 24 February 2026, the property was recorded as owner-occupied.

View sold house prices in SW1X 9HD

Building approximate location

About Property

Type
Flat
Built
1900-1929
Interior Size
850 sq ft
Tenure
Leasehold
Floor level
2nd floor of 1
Price (estimate)
£1,563,792
Price Per sq ft (estimate)
£1,839
Bedroom Count (estimate)
2 bedrooms

EPC Summary

Flat 7, 23 Lowndes Square, London, City Of Westminster, Greater London, SW1X 9HD has an Energy Performance Certificate (EPC) rating of C, based on the latest assessment carried out on 24 Feb 2026.

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 single glazed.

Heating Type
Community scheme
Average
Hot Water
Community scheme
Average
Walls
Solid brick, as built, no insulation (assumed)
Very Poor
Windows
Single glazed
Very Poor
Lighting
Good lighting efficiency
Good

Compared to SW1X 9HD

19 th / 20
Price Rank
82% lower than average
9 th / 12
Size Rank
74% smaller than average
12 th / 12
Price Per Sq FT Rank
31% lower than average

Sale History

Today
£1,563,792
streetscan.co.uk estimate
+154 %
5 Jul 2001
£615,000
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: 2
size: 861 sq ft
sale price: £1,300,000
sale date: 21 Oct 2022
rooms: 2
size: 861 sq ft
sale price: £460,000
sale date: 21 Feb 2024
rooms: 2
size: 904 sq ft
sale price: £700,000
sale date: 26 Oct 2021
rooms: 2
size: 797 sq ft
sale price: £1,200,000
sale date: 30 Sep 2021
rooms: 2
size: 732 sq ft
sale price: £1,900,000
sale date: 30 Mar 2016

Data Sources

The property at Flat 7, 23 Lowndes Square, London, SW1X 9HD appears once in HM Land Registry records, with the transaction recorded on 5 Jul 2001. It also has a single Energy Performance Certificate (EPC) recorded on 24 Feb 2026. 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.