10 Clayfields, Penn, High Wycombe, HP10 8AT
About 10 Clayfields
10 Clayfields is a four-bedroom detached house in Penn, High Wycombe, High Wycombe (HP10 8AT). It has a recorded floor area of 165 m² (around 1776 sq ft), construction records dating it to 1976-1982 and council tax band G. The latest certificate (December 2025) shows a C (score 73). When first surveyed in August 2012 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good; while window efficiency dropped from Average to Poor. Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position.
At 165 m² the property is well over the postcode median (115 m² across 22 EPCs), placing it in the larger end of the local stock. Across 1999–2014, sale prices on this property compounded at 7.2% per year. Today's modelled estimate of £791,000 sits 53.6% above the 2014 sale of £515,000. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and a porch, meaningful when judging how the property has evolved. On the market in March 2014 and unlisted since — roughly 12 years.
What this property has
Inside
- Bedrooms4
- Open-plan layoutYes
- Dining roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenYes
- Cul-de-sacYes
Building
- Previously extendedYes
Energy performance
EPC Rating
Certificate validity
Valid until 8 December 2035
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,220 · Includes VAT
Planning history
10 Clayfields has an approved single-storey rear extension on the planning record.
2 applications on record at 10 Clayfields, Penn, High Wycombe, HP10 8AT
- May 2004ExtensionFullOutcome in report
Extension: Single storey · Rear of property
Construction of single storey rear pitched roof extension
- Documents
- 8 docs on file
- Reference
- 04/05903/FUL
- More recent applications — locked
- PorchFeb 2007Decision
Unlock 10 Clayfields, Penn, High Wycombe, HP10 8AT's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full
- The 21 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
10 Clayfields has more than doubled in price since the earliest registered sale in 1999.
£791,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.2% per year over 15 years.
£515,000
Growth on file: 7.2% per year over 15 years.
Sales timeline
14 March 2014Most recent
£515,000
+186.2%over 15 years29 January 1999
£179,950
Median price across the last 5 sales in HP10 8AT: £600,000 (2025–2020).
Nearby sales in HP10 8AT
9 Clayfields, Penn, High Wycombe, HP10 8AT
Sold Nov 2025
£700,00023 Clayfields, Penn, High Wycombe, HP10 8AT
Sold Nov 2022
£600,00045 Clayfields, Penn, High Wycombe, HP10 8AT
Sold Jun 2022
£582,5008 Clayfields, Penn, High Wycombe, HP10 8AT
Sold Jan 2022
£615,00012 Clayfields, Penn, High Wycombe, HP10 8AT
Sold Aug 2020
£550,000
Versus other Clayfields homes
Floor Area for 10 Clayfields runs comfortably ahead of the street norm.
Price per m²
£3,121
Street avg £4,087
Floor Area
165 m²
Street avg 114 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
4.4 t/year
Street avg 4.2 t/year
Similar properties nearby
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1 Greenridge, Penn
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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
Hazlemere Road — bus stop.
Closest school
0.4 km
Manor Farm Junior School. 18 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
46.7dB

Night-time· 23:00 – 07:00
38.4dB







