149 Ermine Way is a two-bedroom mid-terrace house in Arrington, Royston, Royston (SG8 0AU). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to before 1900 and council tax band D. Tenure is freehold. The latest certificate (March 2025) shows an E (score 43), well below the UK norm with real room to improve. When first surveyed in August 2010 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good, window efficiency went from Very Poor to Good and lighting went from Poor to Very Good; while main heating dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 83), a 3-band jump. Main heating runs on electricity. Other recorded features include notable views and outbuildings. Period features are noted in the property record.
Sale prices here have outpaced England HPI: 3.4% per year against 0% for the wider region. Today's modelled estimate of £316,000 is 26.4% above the 2021 sale price. At 82 m² the property is well over the postcode median (56 m² across 8 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). 2 bedrooms is on the smaller side for this postcode, where 4 is the typical count. 2 planning records sit against the property, 1 approved, 1 refused. The record references listed-building consent, which constrain future alterations. Last sale on file: £250,000 in April 2021. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Recommended upgrades on file would lift this property by multiple EPC bands.
149 Ermine Way has a listed-building consent on record — alterations to a listed property are tightly controlled.
Discharge of condition 5 (materials for clay pot and spark guard) of Listed building consent S/3483/16/LB
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£316,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.4% per year over 16 years.
£250,000
Growth on file: 3.4% per year over 16 years.
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On co₂ emissions, 149 Ermine Way stands well clear of the street.
Price per m²
£3,049
Street avg £3,710
Floor Area
82 m²
Street avg 64 m²
Habitable Rooms
4 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.

Daytime· 07:00 – 23:00
48.7dB

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Changes detected from historical EPC data
Heating system changed
Hot water system changed
Single glazing replaced with double or better glazing
Wall insulation improved
More low energy lighting installed
Discharge of condition 4 (Materials)( Brick )and Condition 5 ( Precise details of the a) clay pot b) Spark guard ) relating to planning permission S/3483/16/LB
Full planning data for 149 Ermine Way, Arrington, Royston, SG8 0AU
Every application and decision on this property and nearby, in full, in the report.
16 April 2021Most recent
£250,000
+4.2%over 4 years28 November 2016
£240,000
+26.3%over 2 years24 February 2014
£190,000
+28.4%over 8 years6 June 2005
£148,000
Median price across the last 5 sales in SG8 0AU: £260,000 (2023–2015).
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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Street avg 3 rooms
CO₂ Emissions
4.0 t/year
Street avg 6.2 t/year
SG8 0NZ
Night-time· 23:00 – 07:00
40.6dB