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Get started2 Castle Street is a three-bedroom end-of-terrace house in Aldbourne, Marlborough, Marlborough (SN8 2DA). It has a recorded floor area of 80 m² (around 861 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (August 2025) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since September 2009. Between certificates, wall efficiency dropped from Poor to Very Poor and window efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 82), a 2-band jump.
Untraded for 24 years, with the last transfer in May 2002. Sale prices here have outpaced England HPI: 20.1% per year against 0% for the wider region. Today's modelled estimate of £370,000 sits 141.8% above the 2002 sale of £153,000. At 80 m² it sits well below the postcode median (141 m² across 14 EPCs), making it one of the more compact homes locally.
Recommended upgrades on file would lift this property by multiple EPC bands.
2 Castle Street's modelled value sits at over four times its earliest registered sale price (1999).
£370,000
Modelled from EPC, postcode comparables and a sale-price growth of 20.1% per year over 3 years.
£153,000
Growth on file: 20.1% per year over 3 years.
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Detailed AI analysis
Floor Area for 2 Castle Street lags the street by a wide margin.
Price per m²
£1,913
Street avg £2,432
Floor Area
80 m²
Street avg 148 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
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
0.2 km

Daytime· 07:00 – 23:00
46.6dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency decreased
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
22 May 2002Most recent
£153,000
+73.9%over 3 years14 May 1999
£88,000
Median price across the last 5 sales in SN8 2DA: £425,000 (2022–2019).
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CO₂ Emissions
3.7 t/year
Street avg 6.3 t/year
SN8 2HS
The Pond — bus stop.
Closest school
0.2 km
St Michael's CofE Aided Primary. 1 school nearby.
Night-time· 23:00 – 07:00
38.6dB