31 Church Street is a detached house in Guilden Morden, Royston, Royston (SG8 0JD). It has a recorded floor area of 208 m² (around 2239 sq ft), construction records dating it to before 1900 and council tax band F. The latest certificate (September 2020) shows an F (score 33), near the bottom of the EPC scale. The recommended improvements would lift it to B (score 88), a 4-band jump. Main heating runs on oil.
Sale prices here have outpaced England HPI: 5% per year against 0% for the wider region. Today's modelled estimate of £746,000 is 12.2% above the 2021 sale price. At 208 m² the property is well over the postcode median (111 m² across 28 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs). Most recent transfer: March 2021 at £665,000. 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 2023.
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
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31 Church Street's carbon output runs well above what efficient homes in the postcode produce.
T.1: Yew - Fell to ground level and remove stump. New landscaping project and a replacement tree will be planted.
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31 Church Street has more than doubled in price since the earliest registered sale in 1999.
£746,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.0% per year over 21 years.
£665,000
Growth on file: 5.0% per year over 21 years.
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
31 Church Street is notably below the street on epc rating.
Price per m²
£3,197
Street avg £4,288
Floor Area
208 m²
Street avg 130 m²
Habitable Rooms
7 rooms
Street avg 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

Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
26 March 2021Most recent
£665,000
+26.7%over 13 years18 January 2008
£525,000
+123.4%over 8 years22 October 1999
£235,000
Median price across the last 5 sales in SG8 0JD: £603,000 (2025–2022).

CO₂ Emissions
15.0 t/year
Street avg 8.2 t/year
Guilden Morden CofE Primary Academy. 2 schools nearby.
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The full report breaks down crime, transport links, schools and air quality in depth.
Night-time· 23:00 – 07:00
36.1dB