27 Church Street is a three-bedroom semi-detached house in Guilden Morden, Royston, Royston (SG8 0JD). It has a recorded floor area of 93 m² (around 1001 sq ft), construction records dating it to 1991-1995 and council tax band C. The latest certificate (February 2022) shows a D (score 59), a step below the typical UK home. The rating has held steady at D across 2 certificates since August 2011. Between certificates, roof efficiency went from Average to Good. The recommended improvements would push it to C (score 80). Main heating runs on oil.
Sale prices here have outpaced England HPI: 6% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£440/sq ft) was about 70% above the typical sold price in the postcode. At 93 m² it's 22.5% smaller than the typical home in the postcode (120 m² median across 28 EPCs). Most recent transfer: August 2022 at £440,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. One historical planning record sits against the property in 2025.
T1 - Purple Plum - Fell.
Price for 27 Church Street has grown more than fourfold since the 1995 starting point.
£450,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.0% per year over 28 years.
£440,000
Growth on file: 6.0% per year over 28 years.
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Detailed analysis
A written breakdown of everything that matters
On price per m², 27 Church Street stands well clear of the street.
Price per m²
£4,731
Street avg £4,232
Floor Area
93 m²
Street avg 135 m²
Habitable Rooms
5 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.
Closest school
0.2 km

Daytime· 07:00 – 23:00
44.1dB

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Changes detected from historical EPC data
Roof insulation improved
Full planning data for 27 Church Street, Guilden Morden, Royston, SG8 0JD
Every application and decision on this property and nearby, in full, in the report.
26 August 2022Most recent
£440,000
+66.0%over 7 years29 October 2014
£265,000
+140.9%over 16 years8 July 1998
£110,000
+6.8%over 12 months22 July 1997
£103,000
+15.1%over 2 years24 February 1995
£89,500
Median price across the last 5 sales in SG8 0JD: £603,000 (2025–2022).
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 6 rooms
CO₂ Emissions
4.6 t/year
Street avg 8.6 t/year
SG8 0LP
Guilden Morden CofE Primary Academy. 2 schools nearby.
Night-time· 23:00 – 07:00
36.1dB