15 Ashwell Road is a three-bedroom semi-detached house in Guilden Morden, Royston, Royston (SG8 0JX). It has a recorded floor area of 91 m² (around 980 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (June 2021) shows an E (score 45), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since June 2014. Between certificates, roof efficiency went from Good to Very Good and lighting went from Poor to Good. The recommended improvements would lift it to C (score 80), a 2-band jump. Main heating runs on oil. Other recorded features include notable views. Our model identifies extension potential, subject to local planning policy. The home occupies a cul-de-sac position.
Sale prices here have outpaced England HPI: 7.5% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£408/sq ft) was about 56.5% above the typical sold price in the postcode. At 91 m² it's 16.5% smaller than the typical home in the postcode (109 m² median across 10 EPCs). Most recent transfer: August 2021 at £400,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Recommended upgrades on file would lift this property by multiple EPC bands.
No planning applications are recorded against 15 Ashwell Road, Guilden Morden, Royston, SG8 0JX. The full report also covers planning activity across the surrounding area.
Full planning data for 15 Ashwell Road, Guilden Morden, Royston, SG8 0JX
Every application and decision on this property and nearby, in full, in the report.
15 Ashwell Road has more than tripled in price since its earliest registered sale in 2002.
£434,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.5% per year over 19 years.
£400,000
Growth on file: 7.5% per year over 19 years.
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Price per m² for 15 Ashwell Road runs comfortably ahead of the street norm.
Price per m²
£4,396
Street avg £3,082
Floor Area
91 m²
Street avg 111 m²
Habitable Rooms
4 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
0.9 km

Daytime· 07:00 – 23:00
41.5dB

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Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
More low energy lighting installed
13 August 2021Most recent
£400,000
+33.3%over 6 years10 October 2014
£300,000
+188.5%over 11 years2 December 2002
£104,000
Median price across the last 5 sales in SG8 0JX: £410,000 (2022–2005).
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 5 rooms
CO₂ Emissions
5.7 t/year
Street avg 7.0 t/year
SG8 0LP
Steeple Morden CofE VC Primary School. 2 schools nearby.
Night-time· 23:00 – 07:00
35.4dB