59 The Grove, Biggin Hill, Westerham, TN16 3TA

UPRN:100020495161Semi-Detached House2 bedsBuilt 1950-1966

FreeholdCouncil Tax: Band DEPC: D (65)

Data freshness:Listing· freshPlanning· 3mo agoOwnership· freshEPC· 6mo agoRisk· 5mo agoCrime· freshConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 1mo ago

59 The Grove, Biggin Hill, Westerham, TN16 3TA

HP Score

/ 100

Mixed

Verdict

today

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

Evidence

19 of 21 sources

Sale Estimate

£401,000

£381k - £421kHigh

Estimate

£401k

Range

£381k – £421k

Rent Estimate (pcm)

£1,600

£1k - £2k

Monthly

£1,600

Yield

4.99%

Verdict

Derived from HomePortfolio scores

59 The Grove earns an INVESTIGATE rating with HP Score 68/100. Investment score 62/100 reflects moderate fundamentals. Crime intensity is low. Walkability is limited (36/100). 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)Defra 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 company ownershipHM Land Registry covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

68/ 100

Mixed

Investment Score

62/ 100

Moderate

Crime Score

23/ 100

Moderate

Walkability

36/ 100

Mixed

Transit & Bike

Transit 28Bike 51

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 14 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 +4.0% (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 Nov 2026
- valuation_snapshotsestimate for 100020495161· as of 9 Nov 2026
Rental economics0/40
gross yield 5.0%; range width penalty ×0.82
- valuation_snapshotsrent estimate 1600/mo (range 1450-1750)· as of 9 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -578/mo, -36% 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 14 Nov 2026
Seller motivationNot scored
context, not scored: 1 price cut(s), unknown 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 14 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

£289,000£442,500

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£385,000

At the asking price

Monthly rent£1,600/mo

Evidenced range £1,450-£1,750

Interest rate5.4%

Loan to value75%

Cash required: £126,050
Net cash flow: -£192/mo
Cash on cash: -1.8%
Score at this price: 15

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.23 - 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 100020495161Valuation edge · as of 9 Nov 2026
valuation_snapshotsrent estimate 1600/mo (range 1450-1750)Rental economics · as of 9 Nov 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 14 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 14 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 1600/mo (range 1450-1750)
Seller motivation could not be scored
context, not scored: 1 price cut(s), unknown 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. Ask the agent why the price was reduced and whether a previous sale fell through.
1 price cut(s) recorded on the listing history.
3. 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.
4. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Valuation & Market

Sale Estimate£401,000

Rent Estimate (pcm)£1,600

Gross Yield4.99%

1y Growth-

3y Growth+1.1%

5y Growth+1.9%

10y Growth+2.3%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonModerate
MiningLow
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

1TN16 3TA

Approval Rate

-12mo

Development

low

2026/1400
Front extension to ground floor with open porch, 1st floor front extension and alterations to existing front dormers, add new pitched roof with dormer above existing garage, make ground floor front extension and new pitched roof with dormer above existing lounge , make 1st floor rear/side extension to existing bathroom and dressing room , make alterations to existing terrace on 1st floor
Pending
2023/775/Cond4
Details pursuant to Condition 7 (Cycle Parking & Charging Points) Condition 8 (External Lighting) and Condition 9 (Biodoiversity Net Gain report & Biodiversity Metric) of planning permission ref: 2023/775 dated 111/10/2024 (Demolition of existing buildings and erection of three no. single storey dwellings with associated parking and landscaping.).
Pending
26/04008/LDC
Demolition of existing detached garage and construction of replacement garage/outbuilding. LAWFUL DEVELOPMENT CERTIFICATE (PROPOSED)
Pending

View Planning Timeline