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Get startedGraham House is a detached house in Marlborough (SN8 1AH). It has a recorded floor area of 100 m² (around 1076 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (May 2025) shows an E (score 54), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since December 2008. Between certificates, roof efficiency went from Average to Good and lighting went from Average to Very Good; while hot-water efficiency dropped from Very Good to Average and main heating dropped from Very Good to Good. The recommended improvements would lift it to C (score 77), a 2-band jump.
Sale prices here have outpaced England HPI: 4.2% per year against 0% for the wider region. Today's modelled estimate of £339,000 sits 99.4% above the 2025 sale of £170,000. On a £-per-square-foot basis, the last sale (£158/sq ft) was about 21.3% below the postcode norm. At 100 m² the property is well over the postcode median (49 m² across 3 EPCs), placing it in the larger end of the local stock. It changed hands recently, sold May 2025 for £170,000. One historical planning record sits against the property in 2026.
Graham House's carbon output runs well above what efficient homes in the postcode produce.
Silver Birch tree - fell
Sale price has grown by over 3x since 1997.
£339,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.2% per year over 28 years.
£170,000
Growth on file: 4.2% per year over 28 years.
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Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St Peters School — bus stop.

Daytime· 07:00 – 23:00
50.1dB

Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Roof insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
30 May 2025Most recent
£170,000
-0.6%over 13 years21 November 2011
£171,000
+219.6%over 14 years28 May 1997
£53,500
Median price across the last 4 sales in SN8 1AH: £121,000 (2021–2003).
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SN8 1RG
Closest school
0.5 km
Marlborough St Mary's CE Primary School. 3 schools nearby.
Night-time· 23:00 – 07:00
41.8dB