40 New Road is a four-bedroom detached house in Guilden Morden, Royston, Royston (SG8 0JN). It has a recorded floor area of 131 m² (around 1410 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (May 2024) shows an F (score 22), near the bottom of the EPC scale. The recommended improvements would push it to E (score 53). Main heating runs on lpg. Other recorded features include notable views, outbuildings and attached land beyond the plot. Our model identifies extension potential, subject to local planning policy.
Sale prices here have outpaced England HPI: 5% per year against 0% for the wider region. Today's modelled estimate of £550,000 is 10% above the 2024 sale price. On a £-per-square-foot basis, the last sale (£355/sq ft) was about 62.2% above the typical sold price in the postcode. At 131 m² the property is well over the postcode median (81 m² across 24 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 88% of similar EPCs). Sold November 2024 for £500,000.
40 New Road's carbon output runs well above what efficient homes in the postcode produce.
No planning applications are recorded against 40 New Road, Guilden Morden, Royston, SG8 0JN. The full report also covers planning activity across the surrounding area.
Full planning data for 40 New Road, Guilden Morden, Royston, SG8 0JN
Every application and decision on this property and nearby, in full, in the report.
40 New Road has more than tripled in price since its earliest registered sale in 1998.
£550,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.0% per year over 27 years.
£500,000
Growth on file: 5.0% per year over 27 years.
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40 New Road is notably below the street on epc rating.
Price per m²
£3,817
Street avg £3,781
Floor Area
131 m²
Street avg 111 m²
Habitable Rooms
6 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
0.6 km

Daytime· 07:00 – 23:00
43.9dB

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20 November 2024Most recent
£500,000
+265.0%over 26 years8 April 1998
£137,000
Median price across the last 5 sales in SG8 0JN: £420,000 (2025–2020).
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
7.6 t/year
Street avg 4.0 t/year
SG8 0JD
Guilden Morden CofE Primary Academy. 2 schools nearby.
Night-time· 23:00 – 07:00
35.9dB