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Get startedCastle Court is a one-bedroom mid-terrace house in Marlborough (SN8 1XG). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1991-1995 and council tax band C. The latest certificate (December 2024) shows a C (score 78), near the top of the C band. The rating has held steady at C across 2 certificates since August 2009. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Poor to Average and lighting went from Very Poor to Very Good. The recommended improvements would push it to B (score 82). Main heating runs on electricity. At 45 m² this is the 7th 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. Other recorded features include a conservatory.
Sale prices here have outpaced England HPI: 5.8% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£299/sq ft) was about 17.4% above the typical sold price in the postcode. Last changed hands 15 years ago, in November 2011. Across the public record there are 5 sales, relatively high churn for a single property. One planning record on file: new windows approved in 2012. Past consents include new windows, meaningful when judging how the property has evolved. At 45 m² it's 21.1% smaller than the typical home in the postcode (57 m² median across 42 EPCs).
Change window in bay window of flat 6 to a door only.
Castle Court has changed hands more often than typical for the area.
£133,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.8% per year over 12 years.
£145,000
Growth on file: 5.8% per year over 12 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
On years held, Castle Court stands well clear of the street.
Price per m²
£3,222
Street avg £3,139
Floor Area
45 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

Changes detected from historical EPC data
Hot water efficiency improved
Window efficiency improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
8 November 2011Most recent
£145,000
22 December 2009
£145,000
+11.5%over 4 years22 December 2005
£130,000
+3.6%over 11 months28 January 2005
£125,500
+71.9%over 5 years27 September 1999
£73,000
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
2.3 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