Boundary House, Downley Road, Naphill, High Wycombe, HP14 4QY
About Boundary House
Boundary House is a five-bedroom detached house in Naphill, High Wycombe, High Wycombe (HP14 4QY). It has a recorded floor area of 195 m² (around 2099 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (July 2013) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 77). The latest certificate is from July 2013, so improvements made since then won't be reflected.
At 195 m² the property is well over the postcode median (108 m² across 20 EPCs), placing it in the larger end of the local stock. 3 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Last changed hands 12 years ago, in May 2014. Today's modelled estimate of £966,000 is 27.9% above the 2014 sale price.
Know exactly what you're buying at Boundary House
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
- Bedrooms5
- Bathrooms2
- Dining roomYes
Outside
- Private gardenrear
- Garagedouble
Energy performance
Boundary House's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 03 Jul 2023
EPC Rating
Planning history
Boundary House has 2 separate extension applications on the council record.
- May 2004FullIn report
Erection of 2 no brick pier lamps and 1no freestanding lamp post in front garden (Retrospective)
Retrospective- Documents
- 7 docs on file
- Reference
- 04/05784/FUL
- Jan 2002ExtensionFullIn report
Extension: Single storey · Side of property
Erection of single storey side extension, amendment to pp 00/07847/FUL (retrospective)
Retrospective- Documents
- 4 docs on file
- Reference
- 01/07848/FUL
We flagged 1 thing worth checking at Boundary House
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
Boundary House valuation sits well clear of the typical sold price in this postcode.
£966,000
Modelled from EPC, postcode comparables.
£755,000
Recorded with HM Land Registry.
Sales timeline
15 May 2014Most recent
£755,000
Median price across the last 5 sales in HP14 4QY: £692,500 (2025–2022).
Nearby sales in HP14 4QY
4 Prospect Cottages, Downley Road, Naphill, High Wycombe, HP14 4QY
Sold Jan 2025
£430,0003 Charity Cottages, Downley Road, Naphill, High Wycombe, HP14 4QY
Sold Jan 2025
£692,500High Firs, Downley Road, Naphill, High Wycombe, HP14 4QY
Sold Nov 2024
£550,000Aisling, Downley Road, Naphill, High Wycombe, HP14 4QY
Sold Jul 2024
£848,500Jesselton, Downley Road, Naphill, High Wycombe, HP14 4QY
Sold Nov 2022
£1,250,000
Everything we know about Boundary House, 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 Downley Road homes
On floor area, Boundary House stands well clear of the street.
Price per m²
£3,872
Street avg £4,854
Floor Area
195 m²
Street avg 113 m²
Habitable Rooms
9 rooms
Street avg 6 rooms
CO₂ Emissions
6.9 t/year
Street avg 4.3 t/year
Similar properties nearby
1 Colliers Row, Church Lane, Bledlow Ridge
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1 Bramley End, Hughenden Valley
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1 Cherrycroft Drive, Naphill
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1 Brackenwood, Naphill
HP14 4TD
1 Cherry Tree Close, Hughenden Valley
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1 Burdett Drive, Walters Ash
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1 Chapel Cottages, Chapel Lane, Naphill
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1 Deanfield Cottages, Speen Road, North Dean
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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
0.2 km
Village Hall — bus stop.
Closest school
1.4 km
Hughenden Primary School. 8 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
43.2dB

Night-time· 23:00 – 07:00
35.9dB