14 Highlea Avenue, Flackwell Heath, High Wycombe, HP10 9AD
About 14 Highlea Avenue
14 Highlea Avenue is a three-bedroom detached house in Flackwell Heath, High Wycombe, High Wycombe (HP10 9AD). It has a recorded floor area of 144 m² (around 1550 sq ft), construction records dating it to 2003-2006 and council tax band F. The latest certificate (October 2021) shows a C (score 77), near the top of the C band. When first surveyed in July 2009 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Average to Good and window efficiency went from Average to Good. The recommended improvements would push it to B (score 85).
At 144 m² the property is well over the postcode median (109 m² across 11 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). 4 planning records sit against the property, 2 approved, 2 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 2009–2022, sale prices on this property compounded at 10% per year. Last sale on file: £825,000 in May 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms3
- Bathrooms3
Energy performance
EPC Rating
Certificate validity
Valid until 18 October 2031
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Window efficiency improved
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
Floor insulation added or improved
More low energy lighting installed
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Planning history
A a two-storey front extension application was refused at 14 Highlea Avenue in 2024.
4 applications on record at 14 Highlea Avenue, Flackwell Heath, High Wycombe, HP10 9AD
- Jan 2010ExtensionFullOutcome in report
Extension: Two storey · Side of property
Householder application for raising of roof, insertion of 2 front and 2 rear dormer windows and construction of two storey side extension
- Documents
- 5 docs on file
- Reference
- 09/07356/FUL
- More recent applications — locked
- ExtensionJan 2024Decision
- Demolition And RebuildOct 2010Decision
+ 1 more application in the report
Unlock 14 Highlea Avenue, Flackwell Heath, High Wycombe, HP10 9AD's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (4 on record)
- All 4 applications on this property in full, plus 3 notable nearby
- The 24 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Sale price has grown by over 3x since 2009.
£846,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.0% per year over 13 years.
£825,000
Growth on file: 10.0% per year over 13 years.
Sales timeline
22 May 2022Most recent
£825,000
+22.8%over 7 years21 May 2015
£672,000
+168.9%over 5 years2 November 2009
£249,950
Median price across the last 5 sales in HP10 9AD: £650,000 (2025–2023).
Nearby sales in HP10 9AD
17 Highlea Avenue, Flackwell Heath, High Wycombe, HP10 9AD
Sold Nov 2025
£500,0003 Highlea Avenue, Flackwell Heath, High Wycombe, HP10 9AD
Sold Aug 2025
£815,00011 Highlea Avenue, Flackwell Heath, High Wycombe, HP10 9AD
Sold Nov 2024
£540,0002 Highlea Avenue, Flackwell Heath, High Wycombe, HP10 9AD
Sold Nov 2024
£750,00015 Highlea Avenue, Flackwell Heath, High Wycombe, HP10 9AD
Sold May 2023
£650,000
Versus other Highlea Avenue homes
14 Highlea Avenue outperforms the street on epc rating by a wide margin.
Price per m²
£5,729
Street avg £6,015
Floor Area
144 m²
Street avg 111 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
3.0 t/year
Street avg 5.1 t/year
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
59/mo
Falling year-on-year across the wider district.
Nearest stop
0.5 km
The Common — bus stop.
Closest school
0.5 km
Carrington Junior School. 11 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
46.7dB

Night-time· 23:00 – 07:00
38.3dB







