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Get started20a is a mid-terrace house in Westminster, London, London (SW1X 8LB). It has a recorded floor area of 74 m² (around 797 sq ft) and construction records dating it to before 1900. At 74 m² this is the smallest unit on EPC record across the building (74–129 m²). The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (77 versus a worst of 43). The latest certificate (March 2025) shows a C (score 77), near the top of the C band. The rating has held steady at C across 3 certificates since October 2008. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to B (score 82).
At 74 m² it's 23.7% smaller than the typical home in the postcode (97 m² median across 4 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. 2 planning records sit against the property, 0 approved, 0 refused, 2 pending. An application is currently awaiting a decision.
20a ranks among the most efficient homes in the postcode for energy use.
There is a planning application currently awaiting a decision.
Display of externally illuminated measuring 0.65m X 2.5m and 1m X 0.75m 8 festive cross street star schemes, supported and secured by catenary wires 11 lamp post festive tree decorations.
20a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£1,123,000
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.
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20a outperforms the street on epc rating by a wide margin.
EPC Rating
77 (C)
Street avg 58 (D)
Floor Area
74 m²
Street avg 102 m²
CO₂ Emissions
1.8 t/year
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Pont Street — bus stop.

Daytime· 07:00 – 23:00
60.2dB

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Changes detected from historical EPC data
Hot water efficiency improved
Single glazing replaced with double or better glazing
Wall insulation improved
Hot water efficiency decreased
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Display of externally illuminated 8 festive cross street star measuring 2.5m X 0.65m and externally illuminated 11 lamp post festive tree decorations 0.75m X 1m.
Median price across the last 2 sales in SW1X 8LB: £760,000 (2021–2013).
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Plus much more
Comparable sales, transport, crime, schools and more

Street avg 5.0 t/year
Habitable Rooms
3 rooms
Street avg 4 rooms
SW1X 8RR
Closest school
0.7 km
Holy Trinity CofE Primary School. 52 schools nearby.
Night-time· 23:00 – 07:00
51.4dB