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Get started3 Coldharbour Lane is a semi-detached house in Marlborough (SN8 1BN). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (March 2023) shows a D (score 66), on the cusp of jumping into the C band. When first surveyed in September 2009 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Poor to Good, lighting went from Average to Very Good and main heating went from Average to Good. The recommended improvements would lift it to B (score 85), a 2-band jump.
Sale prices here have outpaced England HPI: 3.8% per year against 0% for the wider region. Sold August 2023 for £308,250. Across the public record there are 4 sales, relatively high churn for a single property. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include a loft conversion and an extension, meaningful when judging how the property has evolved.
Recommended upgrades on file would lift this property by multiple EPC bands.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
Loft Conversion
Sale price has at least doubled since 2003.
£316,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.8% per year over 20 years.
£308,250
Growth on file: 3.8% per year over 20 years.
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Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km

Daytime· 07:00 – 23:00
47.3dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Roof insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Rear of property
Two storey & single storey rear extension
4 August 2023Most recent
£308,250
+20.4%over 4 years22 October 2018
£256,000
+4.5%over 2 years9 September 2016
£245,000
+69.0%over 13 years30 July 2003
£145,000
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Comparable homes and street-level pricing
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SN8 1HT
Laineys Close — bus stop.
Closest school
0.9 km
Marlborough St Mary's CE Primary School. 3 schools nearby.
Night-time· 23:00 – 07:00
39.8dB