21 High Street is a four-bedroom semi-detached house in Croydon, Royston, Royston (SG8 0DN). It has a recorded floor area of 134 m² (around 1442 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (June 2018) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since September 2015. Between certificates, window efficiency went from Poor to Average and lighting went from Good to Very Good. The recommended improvements would lift it to A (score 99), a 3-band jump. Main heating runs on oil. Period features are noted in the property record.
Sale prices here have outpaced England HPI: 5.3% per year against 0% for the wider region. Today's modelled estimate of £577,000 is 23.3% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£324/sq ft) was about 125.2% above the typical sold price in the postcode. At 134 m² it's 20.2% smaller than the typical home in the postcode (168 m² median across 10 EPCs). Most recent transfer: April 2019 at £468,000.
Recommended upgrades on file would lift this property by multiple EPC bands.
No planning applications are recorded against 21 High Street, Croydon, Royston, SG8 0DN. The full report also covers planning activity across the surrounding area.
Full planning data for 21 High Street, Croydon, Royston, SG8 0DN
Every application and decision on this property and nearby, in full, in the report.
21 High Street valuation sits well clear of the typical sold price in this postcode.
£577,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.3% per year over 3 years.
£468,000
Growth on file: 5.3% per year over 3 years.
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Years Held for 21 High Street lags the street by a wide margin.
Price per m²
£3,493
Street avg £3,026
Floor Area
134 m²
Street avg 167 m²
Habitable Rooms
5 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.

Daytime· 07:00 – 23:00
41.4dB

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Changes detected from historical EPC data
Window efficiency improved
More low energy lighting installed
26 April 2019Most recent
£468,000
+15.6%over 2 years4 July 2016
£405,000
Median price across the last 5 sales in SG8 0DN: £375,000 (2017–2009).
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
4.6 t/year
Street avg 6.1 t/year
SG8 0RB
Night-time· 23:00 – 07:00
35.6dB