12 Periwinkle Close is a two-bedroom detached house in Barkway, Royston, Royston (SG8 8DB). It has a recorded floor area of 76 m² (around 818 sq ft) and council tax band D. The latest certificate (April 2012) shows a C (score 80), near the top of the C band. The recommended improvements would push it to B (score 81). The latest certificate is from April 2012, so improvements made since then won't be reflected.
Sale prices here have outpaced England HPI: 6.4% per year against 0% for the wider region. Today's modelled estimate of £433,000 is 18.6% above the 2019 sale price. At 76 m² it's 25.6% larger than the typical home in the postcode (61 m² median across 10 EPCs). 2 bedrooms is on the smaller side for this postcode, where 4 is the typical count. 2 planning records sit against the property, 0 approved, 0 refused. Sold June 2019 for £365,000.
12 Periwinkle Close'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This certificate is over 10 years old and is no longer valid.Expired 26 Apr 2022
12 Periwinkle Close has been extended on multiple sides of the property across separate planning applications.
£433,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 6 years.
£365,000
Growth on file: 6.4% per year over 6 years.
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Detailed analysis
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Floor Area for 12 Periwinkle Close runs comfortably ahead of the street norm.
EPC Rating
80 (C)
Street avg 78 (C)
Floor Area
76 m²
Street avg 68 m²
CO₂ Emissions
1.6 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
0.1 km

Daytime· 07:00 – 23:00
43.7dB

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Extension: Rear of property
Rear conservatory
Extension: Single storey · Side of property
Single storey side extension (as amended by plan received 05/11/13).
Full planning data for 12 Periwinkle Close, Barkway, Royston, SG8 8DB
Every application and decision on this property and nearby, in full, in the report.
28 June 2019Most recent
£365,000
+46.0%over 6 years28 May 2013
£249,995
Median price across the last 3 sales in SG8 8DB: £206,500 (2013–1998).
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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Street avg 1.1 t/year
SG8 8AD
Windmill Close — bus stop.
Closest school
0.5 km
Barkway VA Church of England First School. 3 schools nearby.
Night-time· 23:00 – 07:00
36.8dB