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Get started12a, Berkeley Mews, Westminster, London, W1H 7AT
4 sales on record
About 12a
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
12a is a three-bedroom mid-terrace house in Westminster, London, London (W1H 7AT). It has a recorded floor area of 126 m² (around 1356 sq ft), construction records dating it to 1983-1990 and council tax band G. The latest certificate (August 2025) shows a C (score 71). The rating has held steady at C across 2 certificates since May 2011. Between certificates, lighting went from Very Poor to Good; while roof efficiency dropped from Good to Average.
Sale prices here have outpaced London HPI: 12.1% per year against 0% for the wider region. Today's modelled estimate of £2,803,000 sits 75.2% above the 2014 sale of £1,600,000. On a £-per-square-foot basis, the last sale (£1,180/sq ft) was about 138.1% above the typical sold price in the postcode. Last sold in June 2014, so it's been off the market for around 12 years. Across the public record there are 4 sales, relatively high churn for a single property.
What this property has
Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.
Inside
- Bedrooms3
- Bathrooms3
- Dining roomYes
- CloakroomYes
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Current Certificate(1 of 2)
Aug 2025
EPC Rating
A
B
C
C71
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Poor
CO2 Emissions
3.4 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.
12a has more than quadrupled in price since its earliest registered sale in 1997.
Current estimate
See how we calculated this£2,803,000
Modelled from EPC, postcode comparables and a sale-price growth of 12.1% per year over 17 years.
Last sold (2014)
£1,600,000
Growth on file: 12.1% per year over 17 years.
Sales timeline
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
8/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Portman Street — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around W1H 7AT from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
63.1dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 93 points of interest in total.
Beautiful places to visit nearby
Curated scenic spots within reach of this postcode, served by Beautifulplaces.ai. Photography and tagging come from their open dataset.
Common questions
The questions buyers, sellers and homeowners most often ask about 12a, Berkeley Mews, Westminster, London, W1H 7AT. Each answer is also embedded as structured data for search engines.