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Get started5 William Mews, Westminster, London, SW1X 9HF
5 sales on record
About 5 William Mews
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
5 William Mews is a mid-terrace house in Westminster, London, London (SW1X 9HF). It has a recorded floor area of 106 m² (around 1141 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (May 2021) shows an E (score 47), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 83), a 3-band jump.
Sale prices here have outpaced London HPI: 6.5% per year against 0% for the wider region. Today's modelled estimate of £2,550,000 is 16.4% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£1,919/sq ft) was about 138.3% above the typical sold price in the postcode. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Most recent transfer: December 2021 at £2,190,000. Across the public record there are 5 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
5 William Mews sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
A
B
C
D
E
E47
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Average
CO2 Emissions
6.4 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.
Price for 5 William Mews has grown more than fourfold since the 1999 starting point.
Current estimate
See how we calculated this£2,550,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.5% per year over 23 years.
Last sold (2021)
£2,190,000
Growth on file: 6.5% per year over 23 years.
Sales timeline
Launch offer · 33% off
The complete analysis of 5 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.
On years held, 5 William Mews runs well behind the street norm.
Price per m²
£20,660
Street avg £13,377
Floor Area
106 m²
Street avg 110 m²
Habitable Rooms
4 rooms
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 5 William Mews, Westminster, London, SW1X 9HF. Each answer is also embedded as structured data for search engines.
