Flat 4B, Portman Mansions Chiltern Street, London, W1U 6NS is a leasehold flat built between 1900-1929. The property offers approximately 915 square feet of living space. In this location, apartments of similar size usually have three bedrooms.

The estimated current market value of the property is £836,220 , which equates to approximately £914 per square foot. It was last sold on 14 Apr 1997 for £155,500. Since then, the value has increased by £680,720, representing a 437.8% increase, or approximately 15.3% per year.

The current estimated value of £836,220 is:

  • 44.3% lower than the average property price on Chiltern Street
  • 44.3% lower than the average in the W1U 6NS postcode area
  • and 4.5% lower 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 owner-occupied and once as rented, indicating a change in how it was used over time.

At the most recent EPC inspection on 13 September 2024, the property was recorded as owner-occupied.

View sold house prices in W1U 6NS

Building approximate location

About Property

Type
Flat
Built
1900-1929
Interior Size
915 sq ft
Tenure
Leasehold
Price (estimate)
£836,220
Price Per sq ft (estimate)
£914
Bedroom Count (estimate)
3 bedrooms

EPC Summary

Flat 4B, Portman Mansions Chiltern Street, London, City Of Westminster, Greater London, W1U 6NS has an Energy Performance Certificate (EPC) rating of E, based on the latest assessment carried out on 13 Sep 2024.

This property uses an LPG-fired boiler with radiators as its main heating source. A community heating scheme is used to provide hot water. The windows are single glazed.

The previous EPC assessment was conducted on 1 Aug 2023, when the property was rated D. The current rating of E reflects a decline in energy efficiency of 15.6%.

Since the previous assessment, several changes were observed:

  • The heating system was upgraded from boiler and radiators, mains gas to boiler and radiators, lpg, changing energy efficiency from good to poor.
  • 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 low energy lighting in 67% of fixed outlets to low energy lighting in all fixed outlets, with efficiency improving from good to very good.
Heating Type
Boiler and radiators, LPG
Poor
Hot Water
Community scheme
Good
Walls
Solid brick, as built, no insulation (assumed)
Poor
Windows
Single glazed
Very Poor
Lighting
Low energy lighting in all fixed outlets
Very Good

Compared to W1U 6NS

16 th / 16
Price Rank
44% lower than average
13 th / 16
Size Rank
20% smaller than average
16 th / 16
Price Per Sq FT Rank
31% lower than average

Compared to other properties in W1U 6NS , this flat's estimated value ranks 16th out of 16. Based on price per square foot, it ranks 16th out of 16 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 13th out of 16 properties in its postcode area.

Sale History

Today
£836,220
streetscan.co.uk estimate
+438 %
14 Apr 1997
£155,500
Leasehold
+56.3 %
23 Mar 1995
£99,500
Leasehold

Area Insights

Similar Properties Sold Nearby

rooms: 3
size: 956 sq ft
sale price: £1,320,000
sale date: 15 Mar 2022
rooms: 3
size: 998 sq ft
sale price: £1,400,000
sale date: 6 Feb 2015
rooms: 3
size: 1033 sq ft
sale price: £1,060,000
sale date: 20 Jan 2014
rooms: 3
size: 818 sq ft
sale price: £525,000
sale date: 3 Sep 2004
rooms: 4
size: 920 sq ft
sale price: £390,000
sale date: 23 Jan 2004

Data Sources

The property at Flat 4B, Portman Mansions Chiltern Street, London, W1U 6NS appears two times in the Land Registry records, with the latest transaction recorded on 14 Apr 1997. It also has two Energy Performance Certificates (EPC) entries, the earliest dating back to 13 Sep 2024. 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.