12 Heydon Road, Great Chishill, Royston, SG8 8SR
Listed building
About 12 Heydon Road
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
12 Heydon Road is a four-bedroom detached house in Great Chishill, Royston, Royston (SG8 8SR). It has a recorded floor area of 154 m² (around 1658 sq ft), construction records dating it to before 1900 and council tax band G. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. Other recorded features include a self-contained annexe. Period features are noted in the property record. The latest certificate (June 2025) shows an E (score 54), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since June 2025. Between certificates, hot-water efficiency went from Poor to Average and lighting went from Poor to Average; while wall efficiency dropped from Good to Very Poor and roof efficiency dropped from Good to Average. The recommended improvements would push it to D (score 60). Main heating runs on oil.
Sale prices here have outpaced England HPI: 3.6% per year against 0% for the wider region. Today's modelled estimate of £804,000 is 10.1% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£440/sq ft) was about 65% above the typical sold price in the postcode. Most recent transfer was July 2025 at £730,000 — fresh data. At 154 m² it's 24.4% larger than the typical home in the postcode (124 m² median across 22 EPCs). One historical planning record sits against the property in 2017.
What this property has
Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.
Inside
- Bedrooms4
- Bathrooms2
Building
- Listed buildingYes
- Period features
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
12 Heydon Road's carbon output runs well above what efficient homes in the postcode produce.
Current Certificate(1 of 2)
Jun 2025
EPC Rating
A
B
C
D
E
E54
F
G
Main Heating
Gas
Main Fuel
Oil
Hot Water
Average
Windows
Poor
CO2 Emissions
8.9 t/year
Occupancy
Owner Occupied
Planning history
Applications and permits filed against 12 Heydon Road, Great Chishill, Royston, SG8 8SR, sourced from the PlanIt planning register.
- Apr 2017RenovationHeritageGranted
Repair and rebuild weathered redundant chimney stack at west end of property and increase its height. Increase height of central chimney stack and pot (in use) in line with current health and safety recommendations. The thatcher has advised that both chimneys will require this increase in height prior to rethatching scheduled for 2018.
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Sale price has at least doubled since 1999.
Current estimate
See how we calculated this£804,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.6% per year over 26 years.
Last sold (2025)
£730,000
Growth on file: 3.6% per year over 26 years.
Sales timeline
Launch offer · 33% off
The complete analysis of 12 Heydon Road, Great Chishill, Royston, SG8 8SR
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed analysis
A written breakdown of everything that matters
Versus other Heydon Road homes
Four headline reads against 22 similar houses on this street, drawn from the latest EPC and Land Registry data.
Years Held for 12 Heydon Road lags the street by a wide margin.
Price per m²
£4,740
Street avg £3,443
Floor Area
154 m²
Street avg 135 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Royston district page.
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
Road noise across the postcode
Modelled day and night-time noise levels around SG8 8SR from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
44.3dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 12 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about 12 Heydon Road, Great Chishill, Royston, SG8 8SR. Each answer is also embedded as structured data for search engines.
