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Get started23 Copperfields is a detached house in High Wycombe (HP12 4AN). It has a recorded floor area of 107 m² (around 1152 sq ft), construction records dating it to 1983-1990 and council tax band F. The latest certificate (February 2026) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2011. Between certificates, lighting went from Very Poor to Good; while window efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 79). This certificate was lodged in the last six months, so the rating reflects current condition.
Sale prices here have outpaced England HPI: 5% per year against 0% for the wider region. Today's modelled estimate of £535,000 sits 67.2% above the 2013 sale of £320,000. At 107 m² it's 17.6% larger than the typical home in the postcode (91 m² median across 51 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). On the market in June 2013 and unlisted since — roughly 13 years. One historical planning record sits against the property in 2005.
The EPC has just been inspected, so the rating reflects current condition.
Erection of wall and gate to enclose the front entrance of the house
23 Copperfields has more than doubled in price since the earliest registered sale in 1995.
£535,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.0% per year over 18 years.
£320,000
Growth on file: 5.0% per year over 18 years.
23 Copperfields is notably below the street on price per m².
Price per m²
£2,991
Street avg £3,975
Floor Area
107 m²
Street avg 105 m²
Habitable Rooms
7 rooms
Street avg 6 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
8/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km

Daytime· 07:00 – 23:00
49.4dB

Changes detected from historical EPC data
Heating controls changed
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
7 June 2013Most recent
£320,000
+135.4%over 17 years16 October 1995
£135,950
Median price across the last 5 sales in HP12 4AN: £540,000 (2025–2024).
CO₂ Emissions
3.3 t/year
Street avg 3.7 t/year
Railway Bridge — bus stop.
Closest school
0.6 km
Millbrook Combined School. 12 schools nearby.
Night-time· 23:00 – 07:00
41.2dB
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