21 Thornton Gardens, London, SW12 0LQ is a leasehold flat built between 1950-1966. The property offers approximately 775 square feet of living space and is situated on the 2nd floor of a 3-storey building. In this location, apartments of similar size usually have two bedrooms.

The estimated current market value of the property is £386,906 , which equates to approximately £499 per square foot. It was last sold on 25 Apr 2018 for £395,000. Since then, the value has decreased by £8,094, representing a 2.0% decrease, or approximately 0.3% per year.

The current estimated value of £386,906 is:

  • 21.6% lower than the average property price on Thornton Gardens
  • 9.5% lower than the average in the SW12 0LQ postcode area
  • and 53.7% lower than the average price for London as a whole

At the most recent EPC inspection on 16 July 2025, the property was recorded as owner-occupied.

View sold house prices in SW12 0LQ

Building approximate location

About Property

Type
Flat
Built
1950-1966
Interior Size
775 sq ft
Tenure
Leasehold
Floor level
2nd floor of 3
Price (estimate)
£386,906
Price Per sq ft (estimate)
£499
Bedroom Count (estimate)
2 bedrooms

EPC Summary

21 Thornton Gardens, London, Lambeth, Greater London, SW12 0LQ has an Energy Performance Certificate (EPC) rating of D, based on the latest assessment carried out on 16 Jul 2025.

This property uses a gas-fired boiler and radiators, connected to the mains gas supply, as its main heating source. Hot water is provided from main heating system. The windows are fully double glazed.

The previous EPC assessment was conducted on 29 Jun 2009. The rating of D remains the same, but the energy efficiency score improved by 5.1%.

Since the previous assessment, several changes were observed:

  • The main heating energy efficiency changing from very good to good, while the heating system type remained the same (boiler and radiators, mains gas).
  • The hot water energy efficiency changing from very good to good, while the system remained as from main system.
  • The roof construction or insulation changed from flat, no insulation (assumed) to flat, no insulation, with no change in energy efficiency (very poor).
  • The wall construction or insulation changed from cavity wall, as built, no insulation (assumed) to solid brick, as built, no insulation (assumed), changing energy efficiency from poor to very poor.
  • The windows were upgraded from single glazed to fully double glazed.
  • The lighting was updated from low energy lighting in 25% of fixed outlets to good lighting efficiency, with efficiency improving from average to good.
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Good
Roof
Flat, no insulation
Very Poor
Walls
Solid brick, as built, no insulation (assumed)
Very Poor
Windows
Fully double glazed
Average
Lighting
Good lighting efficiency
Good

Compared to SW12 0LQ

14 th / 19
Price Rank
9% lower than average
4 th / 17
Size Rank
10% bigger than average
15 th / 17
Price Per Sq FT Rank
18% lower than average

Compared to other properties in SW12 0LQ , this flat's estimated value ranks 14th out of 19. Based on price per square foot, it ranks 15th out of 17 properties. This indicates a lower price per square foot than most, suggesting good value for the space offered. In terms of size, this home ranks 4th out of 17 properties in its postcode area.

Sale History

Today
£386,906
streetscan.co.uk estimate
-2 %
25 Apr 2018
£395,000
Leasehold

Area Insights

Similar Properties Sold Nearby

71 Thornton Gardens, London, SW12 0LQ
rooms: 4
size: 743 sq ft
sale price: £450,000
sale date: 28 Sep 2021
27 Thornton Gardens, London, SW12 0LQ
rooms: 4
size: 764 sq ft
sale price: £412,000
sale date: 24 Jul 2019
83 Thornton Gardens, London, SW12 0LQ
rooms: 4
size: 743 sq ft
sale price: £427,000
sale date: 13 Aug 2015
19 Thornton Gardens, London, SW12 0LQ
rooms: 5
size: 840 sq ft
sale price: £275,000
sale date: 5 Oct 2012

Data Sources

The property at 21 Thornton Gardens, London, Lambeth, Greater London, SW12 0LQ appears once in the Land Registry records, with the transaction recorded on 25 Apr 2018. It also has two Energy Performance Certificates (EPC) entries, the earliest dating back to 16 Jul 2025. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.
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