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Get started11 William Mews, Westminster, London, SW1X 9HF
About 11 William Mews
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
11 William Mews is a semi-detached house in Westminster, London, London (SW1X 9HF). It has a recorded floor area of 108 m² (around 1163 sq ft), construction records dating it to before 1900 and council tax band F. The latest certificate (August 2018) shows an E (score 43), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 75), a 2-band jump.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
11 William Mews sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
A
B
C
D
E
E43
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Poor
CO2 Emissions
6.8 t/year
Occupancy
Owner Occupied
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
11 William Mews has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
Current estimate
See how we calculated this£1,843,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Launch offer · 33% off
The complete analysis of 11 William Mews, Westminster, London, SW1X 9HF
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
An AI-written breakdown of everything that matters
Versus other William Mews homes
Four headline reads against 14 similar houses on this street, drawn from the latest EPC and Land Registry data.
11 William Mews is notably below the street on epc rating.
EPC Rating
43 (E)
Street avg 65 (D)
Floor Area
108 m²
Street avg 110 m²
CO₂ Emissions
6.8 t/year
Street avg 4.3 t/year
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the London district page.
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.
Road noise across the postcode
Modelled day and night-time noise levels around SW1X 9HF from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
59.7dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 79 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about 11 William Mews, Westminster, London, SW1X 9HF. Each answer is also embedded as structured data for search engines.
