Flat 6, 18 Onslow Gardens, London, SW7 3AL is a leasehold flat built between 1900-1929. The property offers approximately 624 square feet of living space and is situated on the 4th floor. In this location, apartments of similar size usually have one bedroom.

The estimated current market value of the property is £877,694 , which equates to approximately £1,406 per square foot. It was last sold on 4 Aug 2006 for £450,000. Since then, the value has increased by £427,694, representing a 95.0% increase, or approximately 4.9% per year.

The current estimated value of £877,694 is:

  • 39.8% lower than the average property price on Onslow Gardens
  • 42.4% lower than the average in the SW7 3AL postcode area
  • and 0.3% higher than the average price for London as a whole

At the most recent EPC inspection on 25 February 2025, the property was recorded as rented.

View sold house prices in SW7 3AL

Building approximate location

About Property

Type
Flat
Built
1900-1929
Interior Size
624 sq ft
Tenure
Leasehold
Floor level
4th floor
Price (estimate)
£877,694
Price Per sq ft (estimate)
£1,406
Bedroom Count (estimate)
1 bedroom

EPC Summary

Flat 6, 18 Onslow Gardens, London, Kensington And Chelsea, Greater London, SW7 3AL has an Energy Performance Certificate (EPC) rating of D, based on the latest assessment carried out on 25 Feb 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 11 Mar 2015, when the property was rated E. Since then, the rating has improved to D, with the energy efficiency score increasing by 9.4%.

Since the previous assessment, several changes were observed:

  • The wall construction or insulation changed from solid brick, as built, no insulation (assumed) to timber frame, as built, no insulation (assumed), changing energy efficiency from poor to very poor.
  • The lighting was updated from low energy lighting in 10% of fixed outlets to low energy lighting in 30% of fixed outlets, with efficiency improving from poor to average.
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Good
Roof
Pitched, no insulation (assumed)
Very Poor
Walls
Timber frame, as built, no insulation (assumed)
Very Poor
Windows
Fully double glazed
Average
Lighting
Low energy lighting in 30% of fixed outlets
Average

Compared to SW7 3AL

26 th / 29
Price Rank
42% lower than average
16 th / 20
Size Rank
33% smaller than average
14 th / 20
Price Per Sq FT Rank
14% lower than average

Compared to other properties in SW7 3AL , this flat's estimated value ranks 26th out of 29. Based on price per square foot, it ranks 14th out of 20 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 16th out of 20 properties in its postcode area.

Sale History

Today
£877,694
streetscan.co.uk estimate
+95 %
4 Aug 2006
£450,000
Leasehold
+42.9 %
18 Apr 2000
£315,000
Leasehold
+76 %
27 Sep 1996
£179,000
Leasehold

Area Insights

Similar Properties Sold Nearby

Flat 4, 18 Onslow Gardens, London, SW7 3AL
rooms: 2
size: 603 sq ft
sale price: £1,080,000
sale date: 25 Sep 2024
Flat 3, 19 Onslow Gardens, London, SW7 3AL
rooms: 3
size: 614 sq ft
sale price: £1,950,000
sale date: 28 Jul 2023
Flat 1, 24 Onslow Gardens, London, SW7 3AL
rooms: 3
size: 710 sq ft
sale price: £1,100,000
sale date: 21 Sep 2022
Flat 9, 21 Onslow Gardens, London, SW7 3AL
rooms: 2
size: 692 sq ft
sale price: £358,300
sale date: 21 Dec 2020
Flat 4, 19 Onslow Gardens, London, SW7 3AL
rooms: 3
size: 624 sq ft
sale price: £275,000
sale date: 20 Aug 2014

Data Sources

The property at Flat 6, 18 Onslow Gardens, London, SW7 3AL appears three times in the Land Registry records, with the latest transaction recorded on 4 Aug 2006. It also has two Energy Performance Certificates (EPC) entries, the earliest dating back to 25 Feb 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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