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Get started125a is a mid-terrace house in Westminster, London, London (W2 4BS). It has a recorded floor area of 42 m² (around 452 sq ft) and construction records dating it to 1930-1949. At 42 m² this is the smallest unit on EPC record across the building (42–105 m²). The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (January 2026) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it C (December 2014); the latest reading is one band lower. Between certificates, lighting went from Average to Very Good; while hot-water efficiency dropped from Good to Average and main heating dropped from Good to Poor. The recommended improvements would lift it to B (score 87), a 2-band jump. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition.
At 42 m² it sits well below the postcode median (83 m² across 4 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs).
125a's carbon output is low for the local stock.
125a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£570,000
Modelled from EPC, postcode comparables.
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.
On floor area, 125a runs well behind the street norm.
EPC Rating
67 (D)
Street avg 69 (C)
Floor Area
42 m²
Street avg 80 m²
CO₂ Emissions
0.6 t/year
Street avg 2.6 t/year
Rail-style transport is unusually close for this postcode.
Crime
19/mo
Rising year-on-year across the wider district.
Nearest stop
0.0 km
Bayswater — bus stop.

Daytime· 07:00 – 23:00
59.6dB

Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
Single glazing replaced with double or better glazing
More low energy lighting installed
Heating system changed
Heating controls upgraded for better temperature management
Hot water system changed
More low energy lighting installed
Heating system upgraded to a more efficient system
Hot water system upgraded
Heating system changed
Heating controls changed
Hot water system changed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Habitable Rooms
2 rooms
Street avg 4 rooms
W2 4LU
Closest school
0.2 km
Hallfield Primary School. 73 schools nearby.
Night-time· 23:00 – 07:00
50.4dB