High House, Long Mill Lane, Crouch, Borough Green, Sevenoaks, TN15 8QD

UPRN:200000969089Detached House5 bedsBuilt 1950-1966

FreeholdCouncil Tax: Band FEPC: D (64)

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

High House, Long Mill Lane, Crouch, Borough Green, Sevenoaks, TN15 8QD

HP Score

/ 100

Mixed

Verdict

today

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

Evidence

18 of 21 sources

Sale Estimate

£1,464,000

£1.39M - £1.54MHigh

Estimate

£1.46M

Range

£1.39M – £1.54M

Rent Estimate (pcm)

£5,450

£5k - £6k

Monthly

£5,450

Yield

4.37%

Verdict

Derived from HomePortfolio scores

High House earns an INVESTIGATE rating with HP Score 62/100. Investment score 59/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is limited (5/100). 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 NationsOfcom mobile coverageMarket 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 covenantsHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

62/ 100

Mixed

Investment Score

59/ 100

Moderate

Crime Score

14/ 100

Low

Walkability

5/ 100

Low

Transit & Bike

Transit 37Bike 27

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 4 Nov 2026

This rests largely on a single source. Treat the score as a prompt to investigate, not a conclusion.

Valuation edge0/15
claims [AVM -2.1% (HIGH), sold-comps -28.2%, £/sqft -28.3%] → measured edge +0.00pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp
Market estimate used (HIGH confidence) · snapshot 9 Oct 2026
- valuation_snapshotsestimate for 200000969089· as of 9 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 7 comps, dispersion 22.7%· as of 22 Oct 2026
Rental economics0/40
gross yield 4.4%; range width penalty ×0.78
- valuation_snapshotsrent estimate 5450/mo (range 4850-6000)· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -2,431/mo, -45% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); fails the stress - earns nothing
- underwriting_assumptionscosts not disclosed by the advert· as of 4 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 171 days on market; homes with a cut sold 0.2-0.3pp further below the cut ask, which is not an edge
- portal_listingsprice_changes + first_published_date· as of 4 Nov 2026
Risk & liquidity14.6/15
231 sales/12mo in area; valuation range width 10%
- property_intelligencetransactions_12mo

4 of 4 components scored. Ranks on gross yield, the stress margin, risk and disclosed facts. A pricing claim earns only its measured edge: today 0 for the market estimate and at most +0.5pp for sold evidence. The score itself is not yet checked against the outcomes of homes it scored.

Economics

What happens to your money

Price sensitivity

£1,121,000£1,719,000

The same scorer re-run at hypothetical asking prices, holding rent, comps and listing history constant. Not a prediction of what the seller would accept.

Your assumptions

Purchase price£1,495,000

At the asking price

Monthly rent£5,450/mo

Evidenced range £4,850-£6,000

Interest rate5.4%

Loan to value75%

Cash required: £543,050
Net cash flow: -£1,273/mo
Cash on cash: -2.8%
Score at this price: 15

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.08 - below the usual 1.25 test. These are your assumptions, not evidence: only the pre-filled rent and price come from the record.

Evidence

Where every number comes from

valuation_snapshotsestimate for 200000969089Valuation edge · as of 9 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 7 comps, dispersion 22.7%Valuation edge · as of 22 Oct 2026
valuation_snapshotsrent estimate 5450/mo (range 4850-6000)Rental economics · as of 9 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 4 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 4 Nov 2026

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion
Rental economics needs verification before you rely on it
rent estimate 5450/mo (range 4850-6000)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 171 days on market; homes with a cut sold 0.2-0.3pp further below the cut ask, which is not an edge

Property risk deep-dive →

Plan

Before you offer

1. Get two written rental appraisals from local lettings agents.
The rent estimate rests on area-level evidence, not lettings on this street.
2. 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£1,464,000

Rent Estimate (pcm)£5,450

Gross Yield4.37%

1y Growth-

3y Growth-1.8%

5y Growth+0.9%

10y Growth+2.2%

Last Sold Price£1,050,000 (2018-07-12)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningLow
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0TN15 8QD

Approval Rate

-12mo

Development

low

26/01866/FL
Demolition of existing stables/equestrian buildings and erection of a detached 4-bed dwelling, utilising existing access
Pending
26/01706/FL
Erection of outbuilding
Pending
26/01367/FL
Demolition of existing carport. Erection of two storey front, side and rear extensions incorporating a vaulted entrance hall, front and rear dormers, replacement photovoltaic panels to new flat roof, associated fenestration alterations and external works
Approved

View Planning Timeline