4a, Chestnut Avenue, High Wycombe, HP11 1DJ
About 4a
4a is a semi-detached house in High Wycombe (HP11 1DJ). It has a recorded floor area of 89 m² (around 958 sq ft) and construction records dating it to 1930-1949. The latest certificate (July 2016) shows an F (score 35), near the bottom of the EPC scale. Earlier certificates rated it E (April 2010); the latest reading is one band lower. Between certificates, roof efficiency went from Average to Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Average to Very Poor and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 83), a 4-band jump. Main heating runs on electricity. The latest certificate is from July 2016, so improvements made since then won't be reflected.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
Everything you need to know about 4a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
4a sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 17 Jul 2026
EPC Rating
Certificate validity
Expired on 17 July 2026
Property Improvements
Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
Loft insulation upgraded to recommended levels
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
4a has no planning applications on record.
But the area is active
9 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
4a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£433,000
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 HP11 1DJ: £572,500 (2025–2020).
Nearby sales in HP11 1DJ
1 Chestnut Avenue, High Wycombe, HP11 1DJ
Sold Sept 2025
£572,5005 Chestnut Avenue, High Wycombe, HP11 1DJ
Sold Nov 2024
£487,5007 Chestnut Avenue, High Wycombe, HP11 1DJ
Sold Oct 2024
£600,000Lowlands, Chestnut Avenue, High Wycombe, HP11 1DJ
Sold Oct 2023
£618,0008b, Chestnut Avenue, High Wycombe, HP11 1DJ
Sold Dec 2020
£328,000
Versus other Chestnut Avenue homes
4a is notably below the street on epc rating.
EPC Rating
35 (F)
Street avg 59 (D)
Floor Area
89 m²
Street avg 97 m²
CO₂ Emissions
10.0 t/year
Street avg 4.8 t/year
Habitable Rooms
4 rooms
Street avg 5 rooms
Everything you need to know about 4a
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
228/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Chestnut Avenue — bus stop.
Closest school
0.6 km
Beechview Academy. 21 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
48.7dB

Night-time· 23:00 – 07:00
39.7dB






