143c, London Road, High Wycombe, HP11 1BT
About 143c
143c is a semi-detached house in High Wycombe (HP11 1BT). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to 1900-1929 and council tax band B. At 40 m² this is the 10th smallest of 54 units on EPC record in the building, where floor areas span 18–226 m². The building's EPC ratings span G to C, with this unit at the top. The latest certificate (March 2019) shows a C (score 70). When first surveyed in October 2008 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Poor to Very Good; while window efficiency dropped from Good to Average.
At 40 m² it's 27.3% smaller than the typical home in the postcode (55 m² median across 53 EPCs). Its energy rating outperforms most of the postcode (better than 81% of similar EPCs).
Energy performance
EPC Rating
Certificate validity
Valid until 7 March 2029
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
143c 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
143c has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£195,000
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 1BT: £286,500 (2025–2021).
Nearby sales in HP11 1BT
195 London Road, High Wycombe, HP11 1BT
Sold Nov 2025
£525,000Flat 6, 123 London Road, High Wycombe, HP11 1BT
Sold Aug 2023
£205,000Flat 2, 129 London Road, High Wycombe, HP11 1BT
Sold Apr 2022
£286,500147 London Road, High Wycombe, HP11 1BT
Sold Apr 2022
£560,000Flat 9, 123 London Road, High Wycombe, HP11 1BT
Sold Nov 2021
£225,000
Versus other London Road homes
CO₂ Emissions for 143c runs comfortably ahead of the street norm.
EPC Rating
70 (C)
Street avg 60 (D)
Floor Area
40 m²
Street avg 47 m²
CO₂ Emissions
1.7 t/year
Street avg 3.2 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
228/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Chestnut Avenue — bus stop.
Closest school
0.6 km
Beechview Academy. 25 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
49.7dB

Night-time· 23:00 – 07:00
40.0dB







