18 Highlea Avenue, Flackwell Heath, High Wycombe, HP10 9AD
About 18 Highlea Avenue
18 Highlea Avenue is a three-bedroom detached house in Flackwell Heath, High Wycombe, High Wycombe (HP10 9AD). It has a recorded floor area of 94 m² (around 1012 sq ft), construction records dating it to 1976-1982 and council tax band F. The latest certificate (July 2022) shows a D (score 56), a step below the typical UK home. The recommended improvements would lift it to B (score 85), a 2-band jump.
One planning record on file: an extension approved in 2023. Past consents include an extension and a porch, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£687/sq ft) was about 52.5% above the typical sold price in the postcode. At 94 m² it's 19% smaller than the typical home in the postcode (116 m² median across 11 EPCs). Sold February 2023 for £695,000.
Know exactly what you're buying at 18 Highlea Avenue
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- Bathrooms1
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
- Jun 2023PorchFullIn report
Extension: Side and rear of property
Householder application for roof alterations/extensions including replacement roof with dormer windows to front and rear. Construction of single storey front and rear extensions and two storey side extension with porch canopy to front
Extension- Documents
- 7 docs on file
- Reference
- 23/05685/FUL
What's in 18 Highlea Avenue, Flackwell Heath, High Wycombe, HP10 9AD's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
18 Highlea Avenue valuation sits well clear of the typical sold price in this postcode.
£753,000
Modelled from EPC, postcode comparables.
£695,000
Recorded with HM Land Registry.
Sales timeline
24 February 2023Most recent
£695,000
Median price across the last 5 sales in HP10 9AD: £750,000 (2025–2022).
Nearby sales in HP10 9AD
3 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
£650,00014 Highlea Avenue, Flackwell Heath, High Wycombe, HP10 9AD
Sold May 2022
£825,000
Everything we know about 18 Highlea Avenue, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Highlea Avenue homes
On price per m², 18 Highlea Avenue stands well clear of the street.
Price per m²
£7,394
Street avg £5,759
Floor Area
94 m²
Street avg 115 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
5.1 t/year
Street avg 4.9 t/year
Similar properties nearby
1 Cherrywood Gardens, Flackwell Heath
HP10 9AX
1 Aspen Road
HP10 9FA
1 Birfield Road, Loudwater
HP10 9TW
1 Conway Close, Loudwater
HP10 9TR
1 Bracken Way, Flackwell Heath
HP10 9JX
1 Chilterns Close, Flackwell Heath
HP10 9BB
1 Chiltern Green, Flackwell Heath
HP10 9AJ
1 Cherry Rise, Flackwell Heath
HP10 9PS
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
3/mo
Rising 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
The full 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