4 Hartwell Close, Penn, High Wycombe, HP10 8AP
About 4 Hartwell Close
4 Hartwell Close is a detached house in Penn, High Wycombe, High Wycombe (HP10 8AP). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (March 2024) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since October 2010. Between certificates, roof efficiency went from Good to Very Good, window efficiency went from Average to Good and lighting went from Average to Very Good; while wall efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Good. The recommended improvements would lift it to B (score 88), a 2-band jump.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 24 March 2034
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Window efficiency improved
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
More low energy lighting installed
Get a survey for this property
Level 2 HomeBuyer Report
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Planning history
4 Hartwell Close has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
4 Hartwell Close has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£390,000
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.
Versus other Hartwell Close homes
On co₂ emissions, 4 Hartwell Close runs well behind the street norm.
EPC Rating
67 (D)
Street avg 68 (D)
Floor Area
42 m²
Street avg 43 m²
CO₂ Emissions
2.1 t/year
Street avg 1.9 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Similar properties nearby
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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
59/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Rose Avenue Shops — bus stop.
Closest school
0.2 km
Manor Farm Community Infant School. 19 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
48.0dB

Night-time· 23:00 – 07:00
38.8dB







