50 Heydon Road is a four-bedroom detached house in Great Chishill, Royston, Royston (SG8 8SR). It has a recorded floor area of 174 m² (around 1873 sq ft), construction records dating it to before 1900 and council tax band F. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. The latest certificate (September 2013) shows an E (score 47), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 68). Main heating runs on oil. The latest certificate is from September 2013, so improvements made since then won't be reflected.
Sale prices here have outpaced England HPI: 6.9% per year against 0% for the wider region. Today's modelled estimate of £704,000 is 40.8% above the 2014 sale price. At 174 m² the property is well over the postcode median (124 m² across 22 EPCs), placing it in the larger end of the local stock. 12 years since the last transfer (July 2014). 3 planning records sit against the property, 2 approved, 1 refused.
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
50 Heydon Road's carbon output runs well above what efficient homes in the postcode produce.
This certificate is over 10 years old and is no longer valid.Expired 18 Sept 2023
Replacement of existing garage. New garage is proposed to move approximately 2m further back from existing garage site to allow for car turning space and a new garden room.
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.
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Sale price has grown by over 3x since 1996.
£704,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.9% per year over 18 years.
£500,000
Growth on file: 6.9% per year over 18 years.
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
EPC Rating for 50 Heydon Road lags the street by a wide margin.
Price per m²
£2,874
Street avg £3,567
Floor Area
174 m²
Street avg 134 m²
Habitable Rooms
7 rooms
Street avg 6 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.
Nearest stop
1.9 km

Daytime· 07:00 – 23:00
44.3dB

Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Replacement of existing garage. New garage is proposed to move approximately 2m further back from existing garage site to allow for car turning space. Add a new wooden shed / garden room.
29 July 2014Most recent
£500,000
+233.3%over 18 years5 July 1996
£150,000
Median price across the last 5 sales in SG8 8SR: £730,000 (2025–2021).

CO₂ Emissions
9.0 t/year
Street avg 5.9 t/year
SG8 8SB
School — bus stop.
Closest school
1.9 km
Chrishall Holy Trinity and St Nicholas CofE (Aided) Primary School and Pre-School. 2 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
37.1dB