20 Allen Drive, Walters Ash, High Wycombe, HP14 4SS
About 20 Allen Drive
20 Allen Drive is a three-bedroom semi-detached house in Walters Ash, High Wycombe, High Wycombe (HP14 4SS). It has a recorded floor area of 131 m² (around 1410 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (January 2021) shows a C (score 69), just inside the C band. When first surveyed in September 2013 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good; while wall efficiency dropped from Good to Average. Records show the property has been extended at some point in its history.
One planning record on file: an extension approved in 2016. Past consents include an extension, a porch and partial demolition, meaningful when judging how the property has evolved. At 131 m² it's 24.8% larger than the typical home in the postcode (105 m² median across 14 EPCs). Across 2014–2021, sale prices on this property compounded at 8.4% per year. Today's modelled estimate of £659,000 is 14.6% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£408/sq ft) was about 16.1% above the typical sold price in the postcode. Sold March 2021 for £575,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 20 Allen Drive
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- Bathrooms2
- EnsuiteYes
- FireplaceYes
Outside
- Private gardenYes
- Garageintegral
Building
- Previously extendedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
More low energy lighting installed
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Oct 2016PorchFullIn report
Extension: Two storey · Front of property
Householder application for demolition of existing single storey front entrance porch, construction of two storey front extension and new front entrance porch, with minor internal alterations
ExtensionDemolition- Documents
- 9 docs on file
- Reference
- 16/07433/FUL
We flagged 1 thing worth checking at 20 Allen Drive
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£659,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.4% per year over 7 years.
£575,000
Growth on file: 8.4% per year over 7 years.
Sales timeline
26 March 2021Most recent
£575,000
+76.9%over 7 years21 February 2014
£325,000
Median price across the last 5 sales in HP14 4SS: £525,000 (2024–2023).
Nearby sales in HP14 4SS
6 Allen Drive, Walters Ash, High Wycombe, HP14 4SS
Sold Sept 2024
£525,0009 Allen Drive, Walters Ash, High Wycombe, HP14 4SS
Sold Dec 2023
£500,0002 Allen Drive, Walters Ash, High Wycombe, HP14 4SS
Sold Nov 2023
£550,00014 Allen Drive, Walters Ash, High Wycombe, HP14 4SS
Sold Aug 2023
£522,0005 Allen Drive, Walters Ash, High Wycombe, HP14 4SS
Sold Mar 2023
£575,000
Everything we know about 20 Allen Drive, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Allen Drive homes
On habitable rooms, 20 Allen Drive stands well clear of the street.
Price per m²
£4,389
Street avg £4,425
Floor Area
131 m²
Street avg 120 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
4.2 t/year
Street avg 4.9 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
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Woodcock Avenue — bus stop.
Closest school
0.5 km
Naphill and Walters Ash School. 5 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
44.9dB

Night-time· 23:00 – 07:00
36.6dB