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Get startedCastle Court is a one-bedroom end-of-terrace house in Marlborough (SN8 1XG). It has a recorded floor area of 44 m² (around 474 sq ft), construction records dating it to 1991-1995 and council tax band C. At 44 m² this is the 6th smallest of 43 units on EPC record in Castle Court, where floor areas span 40–93 m². The building's EPC ratings span F to B across 43 units on file. The latest certificate (October 2017) shows a C (score 73). Main heating runs on electricity.
Sale prices here have outpaced England HPI: 4.7% per year against 0% for the wider region. Today's modelled estimate of £138,000 is 11% below the 2018 sale of £155,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£327/sq ft) was about 27.9% above the typical sold price in the postcode. Last changed hands 8 years ago, in April 2018. Across the public record there are 4 sales, relatively high churn for a single property. At 44 m² it's 22.8% smaller than the typical home in the postcode (57 m² median across 42 EPCs).
Sale price has at least doubled since 1995.
£138,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.7% per year over 23 years.
£155,000
Growth on file: 4.7% per year over 23 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
Castle Court is notably below the street on floor area.
Price per m²
£3,523
Street avg £3,132
Floor Area
44 m²
Street avg 58 m²
Habitable Rooms
2 rooms
Street avg 3 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
48.6dB

30 April 2018Most recent
£155,000
+115.3%over 18 years11 June 1999
£72,000
+20.0%over 1 year9 June 1998
£60,000
+9.1%over 2 years8 August 1995
£55,000
Median price across the last 5 sales in SN8 1XG: £125,000 (2025–2024).
Castle Court Flat 14 River Park Marlborough
Sold Nov 2025
Castle Court Flat 28 River Park Marlborough
Sold Jul 2025
Castle Court Flat 17 River Park Marlborough
Sold Jun 2025
Castle Court Flat 41 River Park Marlborough
Sold Mar 2025
Castle Court Flat 29 River Park Marlborough
Sold Dec 2024
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CO₂ Emissions
2.8 t/year
Street avg 2.7 t/year
SN8 1XG
Ducks Meadow — bus stop.
Closest school
0.3 km
Marlborough St Mary's CE Primary School. 3 schools nearby.
Flood risk
Low
From the Environment Agency.
Night-time· 23:00 – 07:00
41.0dB