10a is a detached house in Byram, Knottingley, Knottingley (WF11 9DY). It has a recorded floor area of 36 m² (around 388 sq ft), construction records dating it to 1950-1966 and council tax band A. At 36 m² this is the smallest unit on EPC record across the building (36–109 m²). The building's EPC ratings span G to B across 37 units on file. The latest certificate (September 2010) shows an E (score 52), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 67). Main heating runs on electricity. The latest certificate is from September 2010, so improvements made since then won't be reflected.
At 36 m² it sits well below the postcode median (80 m² across 36 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs).
10a's EPC is over a decade old — improvements since won't be reflected.
This certificate is over 10 years old and is no longer valid.Expired 02 Sept 2020
No planning applications are recorded against 10a, West Acres, Byram, Knottingley, WF11 9DY. The full report also covers planning activity across the surrounding area.
Full planning data for 10a, West Acres, Byram, Knottingley, WF11 9DY
Every application and decision on this property and nearby, in full, in the report.
10a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£133,000
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.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed analysis
A written breakdown of everything that matters
10a is notably below the street on epc rating.
EPC Rating
52 (E)
Street avg 67 (D)
Floor Area
36 m²
Street avg 53 m²
CO₂ Emissions
3.1 t/year
Street avg 3.2 t/year
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
West Acres — bus stop.

Daytime· 07:00 – 23:00
50.4dB

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Median price across the last 5 sales in WF11 9DY: £189,000 (2025–2024).
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Comparable sales data
Plus transport, crime, schools and air quality
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Habitable Rooms
1 rooms
Street avg 2 rooms
Closest school
0.5 km
Brotherton and Byram Community Primary Academy. 9 schools nearby.
Night-time· 23:00 – 07:00
41.9dB