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Get startedLongdown House, Letter Box Lane, Askett, Princes Risborough, HP27 9LX
4 sales on record
About Longdown House
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
Longdown House is a detached house in Askett, Princes Risborough, Princes Risborough (HP27 9LX). It has a recorded floor area of 183 m² (around 1970 sq ft), construction records dating it to 2003-2006 and council tax band G. The latest certificate (May 2025) shows a C (score 78), near the top of the C band. The rating has held steady at C across 2 certificates since February 2011. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Average and main heating dropped from Very Good to Good. The recommended improvements would lift it to A (score 97), a 2-band jump.
Sale prices here have outpaced England HPI: 7% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£457/sq ft) was about 19.5% above the typical sold price in the postcode. At 183 m² the property is well over the postcode median (135 m² across 3 EPCs), placing it in the larger end of the local stock. Last sale on file: £900,000 in September 2019. Across the public record there are 4 sales, relatively high churn for a single property. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Recommended upgrades on file would lift this property by multiple EPC bands.
Current Certificate(1 of 2)
May 2025
EPC Rating
A
B
C
C78
D
E
F
G
Main Heating
Electric & Gas
Main Fuel
Gas
Hot Water
Average
Windows
Good
CO2 Emissions
4.2 t/year
Occupancy
Owner Occupied
Planning history
Applications and permits filed against Longdown House, Letter Box Lane, Askett, Princes Risborough, HP27 9LX, sourced from the PlanIt planning register.
- Oct 2017ExtensionFullGranted
Householder application for single storey front/side/rear extension & roof alteration to detached double garage to create single garage/storage/studio & utility rooms with guest accommodation in roofspace
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Longdown House has more than doubled in price since the earliest registered sale in 2004.
Current estimate
See how we calculated this£975,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 15 years.
Last sold (2019)
£900,000
Growth on file: 7.0% per year over 15 years.
Sales timeline
Versus other Letter Box Lane homes
Four headline reads against 3 similar houses on this street, drawn from the latest EPC and Land Registry data.
On epc rating, Longdown House stands well clear of the street.
EPC Rating
78 (C)
Street avg 64 (D)
Floor Area
183 m²
Street avg 126 m²
CO₂ Emissions
4.2 t/year
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Princes Risborough district page.
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Roundabout — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around HP27 9LX from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
49.9dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 34 points of interest in total.
Beautiful places to visit nearby
Curated scenic spots within reach of this postcode, served by Beautifulplaces.ai. Photography and tagging come from their open dataset.
Common questions
The questions buyers, sellers and homeowners most often ask about Longdown House, Letter Box Lane, Askett, Princes Risborough, HP27 9LX. Each answer is also embedded as structured data for search engines.