Flat 1, 20 Hardwicks Square, London, SW18 4JS is a leasehold flat built between 2012-2021. The property offers approximately 484 square feet of living space and is situated on the 1st floor of a 6-storey building. In this location, apartments of similar size usually have one bedroom.

The estimated current market value of the property is £431,827 , which equates to approximately £891 per square foot. It was last sold on 6 Jan 2017 for £470,000. Since then, the value has decreased by £38,173, representing a 8.1% decrease, or approximately 0.9% per year.

The current estimated value of £431,827 is:

  • 11.7% lower than the average property price on Hardwicks Square
  • 5.8% lower than the average in the SW18 4JS postcode area
  • and 46.7% lower than the average price for London as a whole

At the most recent EPC inspection on 1 August 2025, the property was recorded as owner-occupied.

View sold house prices in SW18 4JS

Building approximate location

About Property

Type
Flat
Built
2012-2021
Interior Size
484 sq ft
Tenure
Leasehold
Floor level
1st floor of 6
Price (estimate)
£431,827
Price Per sq ft (estimate)
£891
Bedroom Count (estimate)
1 bedroom

EPC Summary

Flat 1, 20 Hardwicks Square, London, Wandsworth, Greater London, SW18 4JS has an Energy Performance Certificate (EPC) rating of D, based on the latest assessment carried out on 1 Aug 2025.

This property uses electric room 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 31 Oct 2016, when the property was rated E. Since then, the rating has improved to D, with the energy efficiency score increasing by 22.4%.

Since the previous assessment, several changes were observed:

  • The main heating energy efficiency improving from very poor to poor, while the heating system type remained the same (room heaters, electric).
  • 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 roof construction or insulation changed from average thermal transmittance 0.18 w/m-¦k to (another dwelling above), changing energy efficiency from good to n/a.
  • The wall construction or insulation changed from average thermal transmittance 0.62 w/m-¦k to system built, as built, insulated (assumed), improving energy efficiency from average to good.
  • The windows were upgraded from high performance glazing to fully double glazed.
  • The lighting was changed from low energy lighting in all fixed outlets to excellent lighting efficiency, with no change in efficiency (very good).
Heating Type
Room heaters, electric
Poor
Hot Water
Electric immersion, off-peak
Average
Walls
System built, as built, insulated (assumed)
Good
Windows
Fully double glazed
Poor
Lighting
Excellent lighting efficiency
Very Good

Compared to SW18 4JS

6 th / 12
Price Rank
6% lower than average
9 th / 9
Size Rank
31% smaller than average
1 st / 9
Price Per Sq FT Rank
36% higher than average

Sale History

Today
£431,827
streetscan.co.uk estimate
-8 %
6 Jan 2017
£470,000
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: 506 sq ft
sale price: £345,000
sale date: 9 Dec 2025
rooms: 2
size: 538 sq ft
sale price: £345,000
sale date: 20 Nov 2025
rooms: 2
size: 474 sq ft
sale price: £234,000
sale date: 1 Jun 2018
rooms: 2
size: 527 sq ft
sale price: £126,000
sale date: 2 May 2018
rooms: 2
size: 538 sq ft
sale price: £395,000
sale date: 18 Nov 2016

Data Sources

The property at Flat 1, 20 Hardwicks Square, London, SW18 4JS appears once in HM Land Registry records, with the transaction recorded on 6 Jan 2017. It also has two Energy Performance Certificate (EPC) records, the earliest dating back to 1 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.