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Get started12a Mayfield is an end-of-terrace house in Marlborough (SN8 2AA). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1976-1982 and council tax band C. At 65 m² this is the largest unit on EPC record across the building (47–65 m²). The building's EPC ratings span D to C, with this unit at the top. The latest certificate (January 2026) shows a C (score 75), near the top of the C band. When first surveyed in September 2010 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Average to Good, hot-water efficiency went from Very Poor to Good and lighting went from Good to Very Good. This certificate was lodged in the last six months, so the rating reflects current condition.
Sale prices here have outpaced England HPI: 6.4% per year against 0% for the wider region. Today's modelled estimate of £180,000 is 14.6% above the 2017 sale price. At 65 m² it sits well below the postcode median (105 m² across 33 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). On the market in March 2017 and unlisted since — roughly 9 years. Across the public record there are 4 sales, relatively high churn for a single property.
The EPC has just been inspected, so the rating reflects current condition.
12a Mayfield has more than tripled in price since its earliest registered sale in 1999.
£180,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 18 years.
£157,000
Growth on file: 6.4% per year over 18 years.
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EPC Rating for 12a Mayfield runs comfortably ahead of the street norm.
Price per m²
£2,415
Street avg £2,189
Floor Area
65 m²
Street avg 75 m²
Habitable Rooms
3 rooms
Street avg 4 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
0.0 km

Daytime· 07:00 – 23:00
49.5dB

Changes detected from historical EPC data
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
High performance glazing installed
Loft insulation upgraded to recommended levels
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
15 March 2017Most recent
£157,000
+20.8%over 11 years5 May 2005
£130,000
+100.0%over 5 years27 October 1999
£65,000
+25.0%14 June 1999
£52,000
Median price across the last 5 sales in SN8 2AA: £345,000 (2023–2021).
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CO₂ Emissions
1.9 t/year
Street avg 3.7 t/year
Pelhams Court — bus stop.
Closest school
0.5 km
Marlborough St Mary's CE Primary School. 3 schools nearby.
Night-time· 23:00 – 07:00
41.4dB