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Get started12 William Mews is a two-bedroom mid-terrace house in Westminster, London, London (SW1X 9HF). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (June 2017) shows a D (score 59), a step below the typical UK home. The recommended improvements would lift it to B (score 82), a 2-band jump.
It hasn't traded since December 2002, a hold of 23 years that's notably long for the area. Sale prices here have outpaced London HPI: 10.5% per year against 0% for the wider region. Today's modelled estimate of £2,166,000 sits 161% above the 2002 sale of £830,000. On a £-per-square-foot basis, the last sale (£695/sq ft) was about 15.2% below the postcode norm.
Recommended upgrades on file would lift this property by multiple EPC bands.
12 William Mews's modelled value sits at over four times its earliest registered sale price (1997).
£2,166,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.5% per year over 5 years.
£830,000
Growth on file: 10.5% per year over 5 years.
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On habitable rooms, 12 William Mews runs well behind the street norm.
Price per m²
£7,477
Street avg £14,696
Floor Area
111 m²
Street avg 110 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Sloane Street / Knightsbridge Station — bus stop.

Daytime· 07:00 – 23:00
59.7dB

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11 December 2002Most recent
£830,000
+14.5%25 June 2002
£725,000
+46.5%over 4 years29 September 1997
£495,000
Median price across the last 5 sales in SW1X 9HF: £2,600,000 (2021–2020).
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Plus much more
Comparable sales, transport, crime, schools and more

CO₂ Emissions
4.8 t/year
Street avg 4.5 t/year
SW1X 9DP
Closest school
0.8 km
Holy Trinity CofE Primary School. 49 schools nearby.
Night-time· 23:00 – 07:00
51.5dB