12 Chiltern Avenue, High Wycombe, HP12 3UR
About 12 Chiltern Avenue
12 Chiltern Avenue is a semi-detached house in High Wycombe (HP12 3UR). It has a recorded floor area of 120 m² (around 1292 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (December 2013) shows a D (score 59), a step below the typical UK home. The recommended improvements would push it to C (score 76). The latest certificate is from December 2013, so improvements made since then won't be reflected.
At 120 m² the property is well over the postcode median (73 m² across 29 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved.
Energy performance
12 Chiltern Avenue's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 14 Dec 2023
EPC Rating
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Planning history
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
2 applications on record at 12 Chiltern Avenue, High Wycombe, HP12 3UR
- Jan 2009ExtensionFullOutcome in report
Extension: Part single, part two storey · Rear of property
Construction of part single / part two storey rear extensions to 12 & 14 Chiltern Avenue
- Documents
- 11 docs on file
- Reference
- 08/07494/FUL
- More recent applications — locked
- Loft ConversionJan 2017Decision
Unlock 12 Chiltern Avenue, High Wycombe, HP12 3UR's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 10 notable nearby
- The 18 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
12 Chiltern Avenue has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£383,000
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 3UR: £265,000 (2024–2018).
Nearby sales in HP12 3UR
4 Chiltern Avenue, High Wycombe, HP12 3UR
Sold Dec 2024
£380,00028 Chiltern Avenue, High Wycombe, HP12 3UR
Sold Jul 2024
£310,0005 Chiltern Avenue, High Wycombe, HP12 3UR
Sold Jul 2022
£265,0007 Chiltern Avenue, High Wycombe, HP12 3UR
Sold Apr 2019
£200,00015 Chiltern Avenue, High Wycombe, HP12 3UR
Sold Nov 2018
£220,000
Versus other Chiltern Avenue homes
On floor area, 12 Chiltern Avenue stands well clear of the street.
EPC Rating
59 (D)
Street avg 64 (D)
Floor Area
120 m²
Street avg 106 m²
CO₂ Emissions
5.4 t/year
Street avg 4.6 t/year
Habitable Rooms
5 rooms
Street avg 6 rooms
Similar properties nearby
The neighbourhood at a glance
Crime
8/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Rutland Avenue Shops — bus stop.
Closest school
0.4 km
Castlefield School. 16 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
50.7dB

Night-time· 23:00 – 07:00
40.0dB







