20 Copperfields, High Wycombe, HP12 4AN
About 20 Copperfields
20 Copperfields is a detached house in High Wycombe (HP12 4AN). It has a recorded floor area of 104 m² (around 1119 sq ft), construction records dating it to 1983-1990 and council tax band F. The latest certificate (September 2020) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 79).
One planning record on file: an extension approved in 2002. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs).
Energy performance
EPC Rating
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Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
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Planning history
20 Copperfields has an approved rear extension on the planning record.
1 application on record at 20 Copperfields, High Wycombe, HP12 4AN
- Dec 2002ConservatoryFullOutcome in report
Extension: Rear of property
Construction of rear conservatory
Extension- Documents
- 6 docs on file
- Reference
- 02/07331/FUL
Unlock 20 Copperfields, High Wycombe, HP12 4AN's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 2 notable nearby
- The 6 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
20 Copperfields has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£551,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in HP12 4AN: £540,000 (2025–2024).
Nearby sales in HP12 4AN
74 Copperfields, High Wycombe, HP12 4AN
Sold Aug 2025
£730,00070 Copperfields, High Wycombe, HP12 4AN
Sold Mar 2025
£445,00015 Copperfields, High Wycombe, HP12 4AN
Sold Sept 2024
£585,00050 Copperfields, High Wycombe, HP12 4AN
Sold Jul 2024
£255,00030 Copperfields, High Wycombe, HP12 4AN
Sold Apr 2024
£540,000
Versus other Copperfields homes
On habitable rooms, 20 Copperfields stands well clear of the street.
EPC Rating
66 (D)
Street avg 70 (C)
Floor Area
104 m²
Street avg 105 m²
CO₂ Emissions
3.7 t/year
Street avg 3.7 t/year
Habitable Rooms
7 rooms
Street avg 6 rooms
Similar properties nearby
The neighbourhood at a glance
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
Railway Bridge — bus stop.
Closest school
0.6 km
Millbrook Combined School. 12 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
49.4dB

Night-time· 23:00 – 07:00
41.2dB







