19 Heydon Road is a detached house in Great Chishill, Royston, Royston (SG8 8SP). It has a recorded floor area of 164 m² (around 1765 sq ft), construction records dating it to 1976-1982 and council tax band G. The latest certificate (October 2018) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2014. Between certificates, hot-water efficiency dropped from Good to Average and lighting dropped from Very Good to Good. The recommended improvements would lift it to B (score 85), a 2-band jump. Main heating runs on electricity.
Held since July 2005 — that's 21 years off the open market, well above the local norm. Today's modelled estimate of £760,000 sits 85.4% above the 2005 sale of £410,000. At 164 m² it sits well below the postcode median (266 m² across 3 EPCs), making it one of the more compact homes locally. 3 planning records sit against the property, 2 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved.
Recommended upgrades on file would lift this property by multiple EPC bands.
Planning history at 19 Heydon Road is exclusively tree-management applications — typical for a property with mature trees on or near the plot.
Birch tree growing at the northwest corner of the house. It is too close to the house and is causing uplift of the paving. It is too close to our neighbour's wall and it is blocking sunlight for both ourselves and our neighbours. I need to remove/fell it as soon as possible, as advised by our house insurance company.
£760,000
Modelled from EPC, postcode comparables.
£410,000
Recorded with HM Land Registry.
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19 Heydon Road is notably below the street on floor area.
EPC Rating
67 (D)
Street avg 53 (E)
Floor Area
164 m²
Street avg 265 m²
CO₂ Emissions
4.3 t/year
Street avg 10.1 t/year
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.
Nearest stop
2.2 km

Daytime· 07:00 – 23:00
45.0dB

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Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Hot water efficiency decreased
Floor insulation added or improved
Low energy lighting percentage decreased
Row of 11 Limes, re-pollard down to 1m below the original pollard points, remove epicormic stems from base that are becoming individual stems and sever ivy at base. Reason - routine management of established pollards.
Full planning data for 19 Heydon Road, Great Chishill, Royston, SG8 8SP
1 more on this property, plus every nearby application and full decision details, in the report.
15 July 2005Most recent
£410,000
Median price across the last 4 sales in SG8 8SP: £842,500 (2020–2008).
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
6 rooms
Street avg 7 rooms
SG8 8AN
School — bus stop.
Closest school
2.2 km
Chrishall Holy Trinity and St Nicholas CofE (Aided) Primary School and Pre-School. 2 schools nearby.
Night-time· 23:00 – 07:00
37.5dB