5a, Chapman Lane, Flackwell Heath, High Wycombe, HP10 9AZ
About 5a
5a is a semi-detached house in Flackwell Heath, High Wycombe, High Wycombe (HP10 9AZ). It has a recorded floor area of 160 m² (around 1722 sq ft). The latest certificate (June 2018) returns a high B (score 86), putting the home a stone's throw from an A rating. The recommended improvements would push it to A (score 93).
One planning record on file: a loft conversion approved in 2021. Past consents include a loft conversion, meaningful when judging how the property has evolved. Its energy rating outperforms most of the postcode (better than 88% of similar EPCs). Today's modelled estimate of £901,000 is 20.9% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£433/sq ft) was about 65.6% above the typical sold price in the postcode. Last sale on file: £745,000 in December 2018.
Know exactly what you're buying at 5a
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
Energy performance
EPC Rating
Planning history
- Nov 2021Loft ConversionFullIn report
Householder application for construction of new internal staircase, insertion of 2 x rooflights in connection with loft conversion to Study/Storage
- Documents
- 17 docs on file
- Reference
- 21/07859/FUL
What's in 5a, Chapman Lane, Flackwell Heath, High Wycombe, HP10 9AZ's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
5a valuation sits well clear of the typical sold price in this postcode.
£901,000
Modelled from EPC, postcode comparables.
£745,000
Recorded with HM Land Registry.
Sales timeline
10 December 2018Most recent
£745,000
Median price across the last 5 sales in HP10 9AZ: £850,000 (2025–2019).
Nearby sales in HP10 9AZ
10 Chapman Lane, Flackwell Heath, High Wycombe, HP10 9AZ
Sold Jan 2025
£716,00013 Chapman Lane, Flackwell Heath, High Wycombe, HP10 9AZ
Sold Oct 2024
£900,00025 Chapman Lane, Flackwell Heath, High Wycombe, HP10 9AZ
Sold Oct 2022
£667,00014 Chapman Lane, Flackwell Heath, High Wycombe, HP10 9AZ
Sold Dec 2021
£870,0008 Chapman Lane, Flackwell Heath, High Wycombe, HP10 9AZ
Sold Oct 2019
£850,000
Everything we know about 5a, 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 Chapman Lane homes
On co₂ emissions, 5a stands well clear of the street.
Price per m²
£4,656
Street avg £4,183
Floor Area
160 m²
Street avg 145 m²
CO₂ Emissions
2.0 t/year
Street avg 5.0 t/year
Years Held
7 years
Street avg 11 years
Similar properties nearby
1 Cherry Rise, Flackwell Heath
HP10 9PS
1 Beckings Way, Flackwell Heath
HP10 9JN
1 Cherry Close, Flackwell Heath
HP10 9PU
1 Bracken Way, Flackwell Heath
HP10 9JX
1 Chilterns Close, Flackwell Heath
HP10 9BB
1 Cherrywood Gardens, Flackwell Heath
HP10 9AX
1 Chiltern Green, Flackwell Heath
HP10 9AJ
1 Churchill Close, Flackwell Heath
HP10 9LA
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
0.1 km
Highlands — bus stop.
Closest school
0.3 km
Juniper Hill 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
50.1dB

Night-time· 23:00 – 07:00
40.7dB