5 Henderson Grove, Biggin Hill, Westerham, TN16 3GG

UPRN:10070000353End Terrace House3 bedsBuilt 2003-2006

FreeholdCouncil Tax: Band DEPC: C (76)

Data freshness:Price Paid· freshPlanning· 4mo agoEPC· 3mo agoRisk· 5mo agoConnectivity· 1mo agoAmenities· 1mo agoArea· Census 2021

5 Henderson Grove, Biggin Hill, Westerham, TN16 3GG

HP Score

/ 100

Mixed

Verdict

3 days ago

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

Evidence

19 of 21 sources

Sale Estimate

£450,000

£428k - £473kHigh

Estimate

£450k

Range

£428k – £473k

Rent Estimate (pcm)

£1,900

£2k - £2k

Monthly

£1,900

Yield

5.36%

Verdict

Derived from HomePortfolio scores

5 Henderson Grove earns an INVESTIGATE rating with HP Score 62/100. Investment score 63/100 reflects moderate fundamentals. Crime intensity is low. Walkability is limited (22/100). 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

62/ 100

Mixed

Investment Score

63/ 100

Moderate

Crime Score

32/ 100

Moderate

Walkability

22/ 100

Low

Transit & Bike

Transit 16Bike 26

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 +5.6% (HIGH)] → 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 10070000353· as of 9 Oct 2026
Rental economics2.6/40
gross yield 5.4%; range width penalty ×0.88
- valuation_snapshotsrent estimate 1900/mo (range 1750-2050)· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -526/mo, -28% 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), 69 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
173 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

£319,000£488,500

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£425,000

At the asking price

Monthly rent£1,900/mo

Evidenced range £1,750-£2,050

Interest rate5.4%

Loan to value75%

Cash required: £140,050
Net cash flow: -£119/mo
Cash on cash: -1.0%
Score at this price: 17

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.32 - clears 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 10070000353Valuation edge · as of 9 Oct 2026
valuation_snapshotsrent estimate 1900/mo (range 1750-2050)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
property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth

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 1900/mo (range 1750-2050)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 69 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. Treat the gap to the estimate as unproven - compare recent sold prices on the street yourself before pricing an offer around it.
On later completions, homes listed below their estimate sold at the same share of the asking price as the rest.
3. 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£450,000

Rent Estimate (pcm)£1,900

Gross Yield5.36%

1y Growth-

3y Growth+1.1%

5y Growth+1.9%

10y Growth+2.3%

Last Sold Price£317,000 (2015-11-19)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonModerate
MiningLow
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0TN16 3GG

Approval Rate

-12mo

Development

low

26/04200/LDC
Demolition of existing detached garage. Construction of single storey side with integral garage and rear extensions LAWFUL DEVELOPMENT CERTIFICATE (PROPOSED)
Pending
26/03484/HPA
Conversion of garage to habitable space, elevational alterations
Pending
26/03327/TPO
3 x Prunus trees - Reduce by approximately 1m (max diameter of branch 50mm). 1 x Birch tree - Reduce by approximately 1m (max diameter of branch 50mm). SUBJECT TO TPO 1204 (29.3.1995)
Approved

View Planning Timeline