56b is a semi-detached house in Byram, Knottingley, Knottingley (WF11 9DU). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (August 2021) shows a C (score 77), near the top of the C band. When first surveyed in July 2010 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, hot-water efficiency went from Average to Good and lighting went from Average to Very Good; while wall efficiency dropped from Good to Average. At 70 m² this is the 13th smallest of 40 units on EPC record in the building, where floor areas span 60–160 m². The building's EPC ratings span F to B across 40 units on file.
At 70 m² it's 18.6% smaller than the typical home in the postcode (86 m² median across 39 EPCs).
No planning applications are recorded against 56b, West Acres, Byram, Knottingley, WF11 9DU. The full report also covers planning activity across the surrounding area.
Full planning data for 56b, West Acres, Byram, Knottingley, WF11 9DU
Every application and decision on this property and nearby, in full, in the report.
56b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£120,000
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
EPC Rating for 56b runs comfortably ahead of the street norm.
EPC Rating
77 (C)
Street avg 69 (D)
Floor Area
70 m²
Street avg 70 m²
CO₂ Emissions
1.9 t/year
Street avg 3.2 t/year
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
East Acres — bus stop.

Daytime· 07:00 – 23:00
50.4dB

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Changes detected from historical EPC data
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Loft insulation upgraded to recommended levels
More low energy lighting installed
Median price across the last 5 sales in WF11 9DU: £153,000 (2025–2020).
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
3 rooms
Street avg 3 rooms
Closest school
0.5 km
Brotherton and Byram Community Primary Academy. 9 schools nearby.
Night-time· 23:00 – 07:00
41.8dB