Flat 21, 1 Ambrosden Avenue, London, SW1P 1QQ is a leasehold flat built between 1900-1929. The property offers approximately 452 square feet of living space and is situated on the 2nd 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 £415,876 , which equates to approximately £920 per square foot. It was last sold on 6 Jan 2015 for £485,000. Since then, the value has decreased by £69,124, representing a 14.3% decrease, or approximately 1.3% per year.

The current estimated value of £415,876 is:

  • 58.4% lower than the average property price on Ambrosden Avenue
  • 18.0% lower than the average in the SW1P 1QQ postcode area
  • and 50.2% lower than the average price for London as a whole

Based on EPC inspection history, this property has been mostly owner-occupied (3 out of 4 inspections). This suggests the property has typically been lived in by its owners, which often reflects longer-term residency and more consistent maintenance.

At the most recent EPC inspection on 4 August 2025, the property was recorded as rented.

View sold house prices in SW1P 1QQ

Building approximate location

About Property

Type
Flat
Built
1900-1929
Interior Size
452 sq ft
Tenure
Leasehold
Floor level
2nd floor of 6
Price (estimate)
£415,876
Price Per sq ft (estimate)
£920
Bedroom Count (estimate)
1 bedroom

EPC Summary

Flat 21, 1 Ambrosden Avenue, London, City Of Westminster, Greater London, SW1P 1QQ has an Energy Performance Certificate (EPC) rating of D, based on the latest assessment carried out on 4 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 single glazed.

The previous EPC assessment was conducted on 11 Aug 2015, when the property was rated E. Since then, the rating has improved to D, with the energy efficiency score increasing by 16.7%.

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 energy efficiency improving from poor to average, while the system remained as electric immersion, off-peak.
  • The wall energy efficiency improving from very poor to poor, with the construction or insulation remaining solid brick, as built, no insulation (assumed).
  • The lighting was updated from no low energy lighting to good lighting efficiency, with efficiency improving from very poor to good.
Heating Type
Room heaters, electric
Poor
Hot Water
Electric immersion, off-peak
Average
Walls
Solid brick, as built, no insulation (assumed)
Poor
Windows
Single glazed
Very Poor
Lighting
Good lighting efficiency
Good

Compared to SW1P 1QQ

27 th / 32
Price Rank
18% lower than average
15 th / 29
Size Rank
2% bigger than average
27 th / 29
Price Per Sq FT Rank
19% lower than average

Compared to other properties in SW1P 1QQ , this flat's estimated value ranks 27th out of 32. Based on price per square foot, it ranks 27th out of 29 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 15th out of 29 properties in its postcode area.

Sale History

Today
£415,876
streetscan.co.uk estimate
-14 %
6 Jan 2015
£485,000
Leasehold

Area Insights

Similar Properties Sold Nearby

rooms: 1
size: 441 sq ft
sale price: £467,500
sale date: 15 Sep 2023
rooms: 2
size: 474 sq ft
sale price: £525,000
sale date: 24 Feb 2023
rooms: 1
size: 398 sq ft
sale price: £430,000
sale date: 29 Apr 2022
rooms: 2
size: 484 sq ft
sale price: £550,000
sale date: 28 Jun 2021
rooms: 2
size: 484 sq ft
sale price: £537,500
sale date: 30 Mar 2021

Data Sources

The property at Flat 21, 1 Ambrosden Avenue, London, City Of Westminster, Greater London, SW1P 1QQ appears once in the Land Registry records, with the transaction recorded on 6 Jan 2015. It also has four Energy Performance Certificates (EPC) entries, the earliest dating back to 4 Aug 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.