Longdown House, Letter Box Lane, Askett, Princes Risborough, HP27 9LX

UPRN:200000799522Detached House4 bedsBuilt 2003-2006

FreeholdCouncil Tax: Band GEPC: C (78)

Data freshness:Listing· freshPrice Paid· freshPlanning· 4mo agoEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 1mo agoArea· Census 2021

Longdown House, Letter Box Lane, Askett, Princes Risborough, HP27 9LX

HP Score

/ 100

Mixed

Verdict

yesterday

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Mixed signals - investigate

Evidence

16 of 21 sources

Sale Estimate

£1,157,000

£1.10M - £1.22MHigh

Estimate

£1.16M

Range

£1.10M – £1.22M

Rent Estimate (pcm)

£3,700

£3k - £4k

Monthly

£3,700

Yield

3.72%

Verdict

Derived from HomePortfolio scores

Longdown House earns an INVESTIGATE rating with HP Score 70/100. Investment score 63/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is limited (26/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. Tenure is freehold. Every figure here comes from the live HomePortfolio API; anything it does not publish is left out.

Key SourcesEPC RegisterPortal listingsOfcom Connected NationsMarket estimates (third-party AVM)HM Land Registry sales matched to addressDefra strategic noise mapping, England Round 4 (Contains Defra data © Crown copyright and database right 2023-2024, Open Government Licence v3.0)Walk ScoreONS Census 2021Police.ukHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

70/ 100

Mixed

Investment Score

63/ 100

Moderate

Crime Score

7/ 100

Low

Walkability

26/ 100

Low

Transit & Bike

Transit 10Bike 23

Walk Score, out of 100

Opportunity

Not scored as an opportunity

We will not put a number on this one.

listing is 'Sold subject to contract' - sale already progressing, not an actionable opportunity

Withholding a score is deliberate. A number built on missing or stale inputs would look more certain than the evidence allows.

Economics

What happens to your money

Your assumptions

Purchase price£1,195,000

At the asking price

Monthly rent£3,700/mo

Evidenced range £3,200-£4,150

Interest rate5.4%

Loan to value75%

Cash required: £423,050
Net cash flow: -£1,472/mo
Cash on cash: -4.2%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.92 - below the usual 1.25 test. These are your assumptions, not evidence: only the pre-filled rent and price come from the record.

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion

Property risk deep-dive →flood, subsidence, crime, environment - the full domain

Plan

Before you offer

1. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Every step above was generated from a specific gap or flag in the evidence - no generic advice, no invented tasks.

Valuation & Market

Sale Estimate£1,157,000

Rent Estimate (pcm)£3,700

Gross Yield3.72%

1y Growth-

3y Growth+1.7%

5y Growth+0.2%

10y Growth+1.8%

Last Sold Price£900,000 (2019-09-13)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningLow
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0HP27 9LX

Approval Rate

-12mo

Development

low

PL/26/08583/KA
Pollarding by 4-5m of a weeping willow (T1) and height reduction of just over 1m to conifers and holly on boundary
Pending
PL/26/08081/CONDA
Application for approval of details subject to condition 3 (trees) of planning approval PL/26/04104/FA
Pending
PL/26/07943/VRC
Variation of condition 1 (temporary limit) attached to planning permission 22/06255/FUL (approved under (approved under APP/K0425/W/22/3302360) (Change of Use of land for stationing of 3 x caravans and 3 x mobile homes for residential occupation for Gypsy-Traveller site with associated development (creation/alteration of access from highway, fencing, hard standing and utility block) (Part Retrospective)) to allow for the removal of the four year temporary limitation allowing authorised use to continue on a permanent basis
Pending

View Planning Timeline

Ownership

Corporate Ownership73.4%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsNone
Lease TypeFreehold
Last Ownership Change2019-09-13
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

7 Mbps

Mobile 4G/5G Coverage

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£35,937

Population Density-

Owner Occupied85%

Age Distribution

0-15 16%16-64 53%65+ 31%

View Area Profile

Schools Nearby

Monks Risborough CofE Primary School
0.5 mi
Report card2026
Ofsted no longer awards a single overall grade.
Great Kimble Church of England School
0.8 mi
Requires improvement
Princes Risborough Primary School
0.8 mi
Good
Red Kite School
0.9 mi
Report card2026
Ofsted no longer awards a single overall grade.

6 of 10 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

Shangri-La Letter Box Lane
-
£750k
-
Shangri-La Letter Box Lane
-
£826k
-
Coronation Cottage Letter Box Lane
-
£1.00M
-
Longdown House Letter Box Lane
-
£900k
-

Boundary data not available for this property

No registered title polygon, building footprint, or street match for this property yet.

Why: No HMLR INSPIRE / OSM footprint / OS Open USRN match for this UPRN

Source: HM Land Registry INSPIRE / OpenStreetMap / OS Open USRN