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Get startedApartment 6, 25 Castlereagh Street, Westminster, London, W1H 5BU
EPC B
About Apartment 6
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
Apartment 6 is a property in Westminster, London, London (W1H 5BU). It has a recorded floor area of 52 m² (around 560 sq ft), construction records dating it to 2012-2021 and council tax band F. The latest certificate (August 2025) returns a B (score 81), comfortably above the UK average. The rating has held steady at B across 2 certificates since August 2015. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Average. At 52 m² this is the 2nd smallest of 10 units on EPC record in the building, where floor areas span 45–118 m². The building's EPC ratings span C to B, with this unit at the top. On EPC score it ranks first in the building (81 versus a worst of 69).
At 52 m² it sits well below the postcode median (83 m² across 9 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the top 10% of properties in this postcode.
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Apartment 6 ranks among the most efficient homes in the postcode for energy use.
Current Certificate(1 of 2)
Aug 2025
EPC Rating
A
B
B81
C
D
E
F
G
Main Heating
Electric & Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
0.7 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.
Apartment 6 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£675,000
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.
Versus other Castlereagh Street homes
Four headline reads against 7 similar flats on this street, drawn from the latest EPC and Land Registry data.
Apartment 6 outperforms the street on epc rating by a wide margin.
EPC Rating
81 (B)
Street avg 77 (C)
Floor Area
52 m²
Street avg 83 m²
CO₂ Emissions
0.7 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
8/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
George Street (W2) — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around W1H 5BU from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
64.6dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 87 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 Apartment 6, 25 Castlereagh Street, Westminster, London, W1H 5BU. Each answer is also embedded as structured data for search engines.