51 Ermine Way is a five-bedroom detached house in Arrington, Royston, Royston (SG8 0AG). It has a recorded floor area of 228 m² (around 2454 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (April 2024) shows a D (score 59), a step below the typical UK home. When first surveyed in October 2008 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Average to Good and lighting went from Very Poor to Average; while main heating dropped from Average to Poor. Main heating runs on electricity. Other recorded features include notable views and attached land beyond the plot. Records show the property has been extended at some point in its history.
At 228 m² the property is well over the postcode median (89 m² across 19 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £751,000 sits 95.1% above the 2015 sale of £385,000. On a £-per-square-foot basis, the last sale (£157/sq ft) was about 47.6% below the postcode norm. 4 planning records sit against the property, 4 approved, 0 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. Last changed hands 11 years ago, in July 2015.
51 Ermine Way'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 51 Ermine Way.
Extension: Single storey · Side of property
Single storey side extension.
51 Ermine Way valuation sits well clear of the typical sold price in this postcode.
£751,000
Modelled from EPC, postcode comparables.
£385,000
Recorded with HM Land Registry.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed analysis
A written breakdown of everything that matters
Price per m² for 51 Ermine Way lags the street by a wide margin.
Price per m²
£1,689
Street avg £3,721
Floor Area
228 m²
Street avg 116 m²
Habitable Rooms
7 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.
Closest school
2.9 km

Daytime· 07:00 – 23:00
48.4dB

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Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
More low energy lighting installed
Heating controls changed
Hot water efficiency decreased
Window efficiency improved
Floor insulation added or improved
More low energy lighting installed
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Low energy lighting percentage decreased
Extension: Single storey · Side of property
Single storey side extension and roof extension to create loft rooms.
Full planning data for 51 Ermine Way, Arrington, Royston, SG8 0AG
2 more on this property, plus every nearby application and full decision details, in the report.
24 July 2015Most recent
£385,000
Median price across the last 5 sales in SG8 0AG: £383,110 (2025–2023).
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 5 rooms
CO₂ Emissions
7.4 t/year
Street avg 6.1 t/year
SG8 0PT
Petersfield CofE Aided Primary School. 1 school nearby.
Night-time· 23:00 – 07:00
40.9dB