Flat 9, 20 Princes Square, London, W2 4NP is a leasehold flat built between 1900-1929. The property offers approximately 441 square feet of living space and is situated on the 3rd floor of a 4-storey building. In this location, apartments of similar size usually have one bedroom.

The estimated current market value of the property is £705,452 , which equates to approximately £1,598 per square foot. It was last sold on 30 Apr 2015 for £855,000. Since then, the value has decreased by £149,548, representing a 17.5% decrease, or approximately 1.6% per year.

The current estimated value of £705,452 is:

  • 58.1% lower than the average property price on Princes Square
  • 47.7% lower than the average in the W2 4NP postcode area
  • and 12.9% lower than the average price for London as a whole

At the most recent EPC inspection on 6 August 2025, the property was recorded as rented.

View sold house prices in W2 4NP

Building approximate location

About Property

Type
Flat
Built
1900-1929
Interior Size
441 sq ft
Tenure
Leasehold
Floor level
3rd floor of 4
Price (estimate)
£705,452
Price Per sq ft (estimate)
£1,598
Bedroom Count (estimate)
1 bedroom

EPC Summary

Flat 9, 20 Princes Square, London, City Of Westminster, Greater London, W2 4NP has an Energy Performance Certificate (EPC) rating of B, based on the latest assessment carried out on 6 Aug 2025.

This property uses electric storage heaters as its main heating source. Hot water is provided from off-peak electric immersion heater. The windows are fully double glazed.

The previous EPC assessment was conducted on 18 Mar 2015, when the property was rated C. Since then, the rating has improved to B, with the energy efficiency score increasing by 11%.

Since the previous assessment, several changes were observed:

  • The heating system was upgraded from electric underfloor heating to electric storage heaters, improving energy efficiency from very poor to average.
  • The hot water system was changed from electric immersion, standard tariff to electric immersion, off-peak, with its energy efficiency improving from very poor to average.
  • The wall construction or insulation changed from solid brick, with internal insulation to solid brick, as built, no insulation (assumed), changing energy efficiency from good to poor.
  • The lighting was updated from low energy lighting in all fixed outlets to good lighting efficiency, with efficiency changing from very good to good.
Heating Type
Electric storage heaters
Average
Hot Water
Electric immersion, off-peak
Average
Walls
Solid brick, as built, no insulation (assumed)
Poor
Windows
Fully double glazed
Average
Lighting
Good lighting efficiency
Good

Compared to W2 4NP

11 th / 19
Price Rank
48% lower than average
13 th / 15
Size Rank
50% smaller than average
2 nd / 15
Price Per Sq FT Rank
5% higher than average

Sale History

Today
£705,452
streetscan.co.uk estimate
-17 %
30 Apr 2015
£855,000
Leasehold

Flood Risk for this Property

Flood risk from rivers and the sea
Very low flood risk
Flood risk from surface water
Low flood risk
Surface water flood hazard
Low

* 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 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 Very low
  • 0.3m depth Very low
  • 0.6m depth Very low
  • 0.9m depth Very low
  • 1.2m depth Very low

Area Insights

Similar Properties Sold Nearby

rooms: 2
size: 506 sq ft
sale price: £550,000
sale date: 23 Dec 2021
rooms: 2
size: 474 sq ft
sale price: £900,000
sale date: 19 Oct 2015
rooms: 2
size: 452 sq ft
sale price: £899,380
sale date: 8 Sep 2015
rooms: 2
size: 441 sq ft
sale price: £797,200
sale date: 2 Jun 2015
rooms: 1
size: 452 sq ft
sale price: £220,000
sale date: 6 Aug 2004

Data Sources

The property at Flat 9, 20 Princes Square, London, W2 4NP appears once in HM Land Registry records, with the transaction recorded on 30 Apr 2015. It also has three Energy Performance Certificate (EPC) records, the earliest dating back to 6 Aug 2025. 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.