Flat 9, Harmont House, 20 Harley Street, London, W1G 9PH is a leasehold flat built between 1950-1966. The property offers approximately 872 square feet of living space and is situated on the 2nd floor. In this location, apartments of similar size usually have three bedrooms.

The estimated current market value of the property is £1,346,222 , which equates to approximately £1,544 per square foot. It was last sold on 19 Jun 2015 for £1,425,000. Since then, the value has decreased by £78,778, representing a 5.5% decrease, or approximately 0.5% per year.

The current estimated value of £1,346,222 is:

  • 38.8% lower than the average property price on Harley Street
  • 24.8% higher than the average in the W1G 9PH postcode area
  • and 53.8% higher than the average price for London as a whole

This property has had 2 EPC inspections with recorded tenure information. It was recorded once as rented and once as owner-occupied, indicating a change in how it was used over time.

At the most recent EPC inspection on 5 March 2025, the property was recorded as rented.

View sold house prices in W1G 9PH

Building approximate location

About Property

Type
Flat
Built
1950-1966
Interior Size
872 sq ft
Tenure
Leasehold
Floor level
2nd floor
Price (estimate)
£1,346,222
Price Per sq ft (estimate)
£1,544
Bedroom Count (estimate)
3 bedrooms

EPC Summary

Flat 9, Harmont House, 20 Harley Street, London, City Of Westminster, Greater London, W1G 9PH has an Energy Performance Certificate (EPC) rating of C, based on the latest assessment carried out on 5 Mar 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 single glazed.

The previous EPC assessment was conducted on 30 Jan 2015. The rating of C is unchanged, though the energy efficiency score decreased by 5.5%.

Since the previous assessment, several changes were observed:

  • The hot water energy efficiency changing from good to average, while the system remained as from main system.
  • The lighting was updated from low energy lighting in 20% of fixed outlets to low energy lighting in all fixed outlets, with efficiency improving from poor to very good.
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Average
Walls
Cavity wall, as built, no insulation (assumed)
Poor
Windows
Single glazed
Very Poor
Lighting
Low energy lighting in all fixed outlets
Very Good

Compared to W1G 9PH

3 rd / 21
Price Rank
25% higher than average
11 th / 18
Size Rank
10% smaller than average
2 nd / 18
Price Per Sq FT Rank
39% higher than average

Compared to other properties in W1G 9PH , this flat's estimated value ranks 3rd out of 21. Based on price per square foot, it ranks 2nd out of 18 properties. This suggests a relatively high price per square foot, which may reflect quality, location, or recent upgrades. In terms of size, this home ranks 11th out of 18 properties in its postcode area.

Sale History

Today
£1,346,222
streetscan.co.uk estimate
-6 %
19 Jun 2015
£1,425,000
Leasehold
+1692.5 %
31 Jan 2006
£79,500
Leasehold
-70 %
18 Jun 1999
£265,000
Leasehold

Area Insights

Similar Properties Sold Nearby

rooms: 3
size: 818 sq ft
sale price: £1,100,000
sale date: 17 Aug 2022
rooms: 3
size: 872 sq ft
sale price: £1,330,000
sale date: 19 Sep 2019
rooms: 3
size: 893 sq ft
sale price: £1,350,000
sale date: 18 Jul 2014
rooms: 3
size: 764 sq ft
sale price: £202,500
sale date: 10 Sep 2009
rooms: 3
size: 883 sq ft
sale price: £737,500
sale date: 2 Nov 2007

Data Sources

The property at Flat 9, Harmont House, 20 Harley Street, London, W1G 9PH appears three times in the Land Registry records, with the latest transaction recorded on 19 Jun 2015. It also has two Energy Performance Certificates (EPC) entries, the earliest dating back to 5 Mar 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.