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Get started31 Sim Balk Lane is a four-bedroom semi-detached house in Bishopthorpe, York, York (YO23 2QH). It has a recorded floor area of 158 m² (around 1701 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (May 2019) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 78). Our model identifies extension potential, subject to local planning policy.
Sale prices here have outpaced York HPI: 6.8% per year against 0% for the wider region. Today's modelled estimate of £726,000 is 34.4% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£318/sq ft) was about 30.7% above the typical sold price in the postcode. 3 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. Sold September 2019 for £540,000.
31 Sim Balk Lane's carbon output runs well above what efficient homes in the postcode produce.
Multiple extension applications run across more than a decade of planning history at 31 Sim Balk Lane.
Extension: Single storey · Rear of property
Single storey rear extension
31 Sim Balk Lane has more than quadrupled in price since its earliest registered sale in 1996.
£726,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.8% per year over 23 years.
£540,000
Growth on file: 6.8% per year over 23 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
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Price per m²
£3,418
Street avg £3,310
Floor Area
158 m²
Street avg 189 m²
Habitable Rooms
7 rooms
Street avg 8 rooms
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Sim Balk Lane — bus stop.

Daytime· 07:00 – 23:00
53.4dB

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Dormer to rear
1 more application for this property
See the full planning history in the property report.
12 September 2019Most recent
£540,000
+350.0%over 22 years22 November 1996
£120,000
Median price across the last 5 sales in YO23 2QH: £685,000 (2025–2020).
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

CO₂ Emissions
6.7 t/year
Street avg 8.0 t/year
YO23 2QZ
Closest school
0.1 km
Bishopthorpe Infant School. 10 schools nearby.
Flood risk
Low
From the Environment Agency.
Night-time· 23:00 – 07:00
41.5dB