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Get started21 Princes Mews is a two-bedroom mid-terrace house in Westminster, London, London (W2 4NX). It has a recorded floor area of 134 m² (around 1442 sq ft), construction records dating it to before 1900 and council tax band G. Tenure is freehold. The latest certificate (December 2024) shows a C (score 72). When first surveyed in April 2011 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Average and window efficiency went from Very Poor to Good. The recommended improvements would push it to B (score 85).
Sale prices here have outpaced London HPI: 21.7% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£1,629/sq ft) was about 93.6% above the typical sold price in the postcode. 12 years since the last transfer (October 2014). Across the public record there are 4 sales, relatively high churn for a single property. 8 planning records sit against the property, 4 approved, 3 refused. Past consents include a basement excavation and change of use to residential, meaningful when judging how the property has evolved.
21 Princes Mews has been through 4 approved planning applications — a well-evolved property.
Use as two residential dwellings (Class C3) with excavation of two storey basement, and alterations to front elevation and lightwell to rear.
Price for 21 Princes Mews has grown more than fourfold since the 2000 starting point.
£2,331,000
Modelled from EPC, postcode comparables and a sale-price growth of 21.7% per year over 15 years.
£2,350,000
Growth on file: 21.7% per year over 15 years.
21 Princes Mews outperforms the street on floor area by a wide margin.
Price per m²
£17,537
Street avg £14,367
Floor Area
134 m²
Street avg 119 m²
Habitable Rooms
4 rooms
Rail-style transport is unusually close for this postcode.
Crime
19/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Whiteleys — bus stop.

Daytime· 07:00 – 23:00
59.2dB

Changes detected from historical EPC data
Heating controls changed
Single glazing replaced with double or better glazing
More low energy lighting installed
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
Floor insulation added or improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
Details of refuse & recycling storage and construction management plan pursuant to Conditions 5 and 6 of planning permission dated 27 June 2012 (RN: 12/03537).
6 more applications for this property
Join to see all planning history.
10 October 2014Most recent
£2,350,000
+1368.8%over 7 years18 October 2006
£160,000
-31.9%over 4 years7 March 2002
£235,000
+80.8%over 2 years21 January 2000
£130,000
Median price across the last 5 sales in W2 4NX: £1,750,000 (2025–2022).
Street avg 4 rooms
CO₂ Emissions
3.6 t/year
Street avg 4.4 t/year
W2 4LZ
Closest school
0.4 km
Hallfield Primary School. 73 schools nearby.
Night-time· 23:00 – 07:00
50.1dB
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