Heydonbury, Heydon Lane, Heydon, Royston, SG8 8QB
31 planning records
About Heydonbury
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
Heydonbury is a detached house in Heydon, Royston, Royston (SG8 8QB). It has a recorded floor area of 870 m² (around 9365 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (February 2025) shows a D (score 60), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 74). Main heating runs on oil.
Today's modelled estimate of £2,991,000 is 28.8% below the 2025 sale of £4,200,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. A recent sale: £4,200,000 in September 2025. 31 planning records sit against the property, 25 approved, 1 refused. Past consents include tree works, an extension and partial demolition, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations.
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Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
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Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Heydonbury's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
A
B
C
D
D60
E
F
G
Main Heating
Electric & Gas
Main Fuel
Oil
Hot Water
Good
Windows
Poor
CO2 Emissions
28.3 t/year
Occupancy
Owner Occupied
Planning history
Applications and permits filed against Heydonbury, Heydon Lane, Heydon, Royston, SG8 8QB, sourced from the PlanIt planning register.
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Aug 2024Tree WorksTreesIn report
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We flagged 1 thing worth checking at Heydonbury
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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Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Latest sale on Heydonbury was the highest on Land Registry record across the postcode.
Current estimate
See how we calculated this£2,991,000
Modelled from EPC, postcode comparables.
Last sold (2025)
£4,200,000
Recorded with HM Land Registry.
Sales timeline
Before you offerLaunch offer · save £5
Everything we know about Heydonbury, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby
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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
1.3 km
Road noise across the postcode
Modelled day and night-time noise levels around SG8 8QB from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
42.2dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 8 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about Heydonbury, Heydon Lane, Heydon, Royston, SG8 8QB. Each answer is also embedded as structured data for search engines.
