18 Colts Croft is a three-bedroom detached house in Great Chishill, Royston, Royston (SG8 8SF). It has a recorded floor area of 102 m² (around 1102 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (July 2011) shows a D (score 57), a step below the typical UK home. The rating has held steady at D across 2 certificates since November 2008. Between certificates, lighting dropped from Average to Very Poor. Main heating runs on oil. The latest certificate is from July 2011, so improvements made since then won't be reflected. Records show the property has been extended at some point in its history.
Sale prices here have outpaced England HPI: 4.6% per year against 0% for the wider region. Today's modelled estimate of £439,000 is 17.1% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£340/sq ft) was about 31.2% above the typical sold price in the postcode. Most recent transfer: July 2020 at £375,000. One historical planning record sits against the property in 2010.
18 Colts Croft's EPC is over a decade old — improvements since won't be reflected.
This certificate is over 10 years old and is no longer valid.Expired 19 Jul 2021
Certificate of lawfulness for extension to dwelling
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£439,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.6% per year over 11 years.
£375,000
Growth on file: 4.6% per year over 11 years.
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18 Colts Croft is notably below the street on floor area.
Price per m²
£3,664
Street avg £3,435
Floor Area
102 m²
Street avg 135 m²
Habitable Rooms
7 rooms
Street avg 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.
Nearest stop
2.3 km

Daytime· 07:00 – 23:00
44.3dB

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Changes detected from historical EPC data
Windows upgraded, improving insulation
Loft insulation upgraded to recommended levels
Low energy lighting percentage decreased
Full planning data for 18 Colts Croft, Great Chishill, Royston, SG8 8SF
Every application and decision on this property and nearby, in full, in the report.
31 July 2020Most recent
£375,000
+50.0%over 7 years16 August 2012
£250,000
+7.5%over 2 years26 November 2009
£232,500
Median price across the last 5 sales in SG8 8SF: £495,000 (2024–2020).
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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CO₂ Emissions
5.5 t/year
Street avg 8.0 t/year
SG8 8QL
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
37.4dB