2 Byram Park Avenue is a four-bedroom semi-detached house in Byram, Knottingley, Knottingley (WF11 9EH). It has a recorded floor area of 109 m² (around 1173 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (June 2025) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in February 2014 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and roof efficiency went from Very Poor to Average; while window efficiency dropped from Average to Poor and lighting dropped from Average to Poor. The recommended improvements would push it to C (score 75).
Sale prices here have outpaced England HPI: 2.5% per year against 0% for the wider region. Today's modelled estimate of £258,000 sits 55.4% above the 2016 sale of £166,000. On a £-per-square-foot basis, the last sale (£141/sq ft) was about 323% above the typical sold price in the postcode. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. At 109 m² it's 18.5% larger than the typical home in the postcode (92 m² median across 4 EPCs). On the market in May 2016 and unlisted since — roughly 10 years.
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
2 Byram Park Avenue has 2 separate extension applications on the council record.
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
30-day money-back guarantee
£258,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.5% per year over 2 years.
£166,000
Growth on file: 2.5% per year over 2 years.
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
2 Byram Park Avenue outperforms the street on habitable rooms by a wide margin.
EPC Rating
66 (D)
Street avg 71 (C)
Floor Area
109 m²
Street avg 106 m²
CO₂ Emissions
4.2 t/year
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km

Daytime· 07:00 – 23:00
46.4dB

Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Changes detected from historical EPC data
Wall insulation improved
Roof insulation improved
More low energy lighting installed
Extension: Two storey · Side of property
Erection of a two storey side extension (re-submission of planning reference 8/50/178/PA) at
Extension: Two storey · Side of property
Erection of a two storey side extension at
5 May 2016Most recent
£166,000
+3.8%over 1 year28 October 2014
£159,950
Median price across the last 3 sales in WF11 9EH: £36,000 (2016–1996).

Street avg 3.5 t/year
Habitable Rooms
6 rooms
Street avg 5 rooms
WF11 9LH
East Acres — bus stop.
Closest school
0.7 km
Brotherton and Byram Community Primary Academy. 9 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Night-time· 23:00 – 07:00
38.0dB