Penthouse 9, Portman Mansions Chiltern Street, London, W1U 5AH is a leasehold flat built between 1976-1982. The property offers approximately 1,345 square feet of living space and is situated on the 6th floor. In this location, apartments of similar size usually have four bedrooms.

The estimated current market value of the property is £1,436,816 , which equates to approximately £1,068 per square foot. It was last sold on 9 Aug 1999 for £355,000. Since then, the value has increased by £1,081,816, representing a 304.7% increase, or approximately 11.6% per year.

The current estimated value of £1,436,816 is:

  • 4.3% lower than the average property price on Chiltern Street
  • 28.9% lower than the average in the W1U 5AH postcode area
  • and 64.2% higher than the average price for London as a whole

At the most recent EPC inspection on 20 December 2024, the property was recorded as rented.

View sold house prices in W1U 5AH

Building approximate location

About Property

Type
Flat
Built
1976-1982
Interior Size
1345 sq ft
Tenure
Leasehold
Floor level
6th floor
Price (estimate)
£1,436,816
Price Per sq ft (estimate)
£1,068
Bedroom Count (estimate)
4 bedrooms

EPC Summary

Penthouse 9, Portman Mansions Chiltern Street, London, City Of Westminster, Greater London, W1U 5AH has an Energy Performance Certificate (EPC) rating of C, based on the latest assessment carried out on 20 Dec 2024.

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.

Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Good
Roof
Flat, limited insulation (assumed)
Poor
Walls
Timber frame, as built, insulated (assumed)
Good
Windows
Fully double glazed
Average
Lighting
Low energy lighting in all fixed outlets
Very Good

Compared to W1U 5AH

11 th / 12
Price Rank
29% lower than average
6 th / 9
Size Rank
8% smaller than average
5 th / 9
Price Per Sq FT Rank
22% lower than average

Compared to other properties in W1U 5AH , this flat's estimated value ranks 11th out of 12. Based on price per square foot, it ranks 5th out of 9 properties. In terms of size, this home ranks 6th out of 9 properties in its postcode area.

Sale History

Today
£1,436,816
streetscan.co.uk estimate
+305 %
9 Aug 1999
£355,000
Leasehold

Area Insights

Similar Properties Sold Nearby

rooms: 4
size: 1421 sq ft
sale price: £3,050,000
sale date: 28 Aug 2024
rooms: 5
size: 1259 sq ft
sale price: £1,225,000
sale date: 28 Jun 2024
rooms: 4
size: 1335 sq ft
sale price: £2,250,000
sale date: 27 Aug 2015
rooms: 4
size: 1399 sq ft
sale price: £2,625,000
sale date: 12 Jan 2024
rooms: 4
size: 1206 sq ft
sale price: £1,425,000
sale date: 19 Dec 2023

Data Sources

The property at Penthouse 9, Portman Mansions Chiltern Street, London, City Of Westminster, Greater London, W1U 5AH appears once in the Land Registry records, with the transaction recorded on 9 Aug 1999. It also has a single Energy Performance Certificate (EPC) from 20 Dec 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.