4 Stillwater Mews, St. Marys Island, Chatham, ME4 3SL

UPRN:44111032Semi-Detached House2 bedsBuilt 1996-2002

FreeholdCouncil Tax: Band DEPC: C (73)

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

4 Stillwater Mews, St. Marys Island, Chatham, ME4 3SL

HP Score

/ 100

Mixed

Verdict

today

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

Evidence

17 of 21 sources

Sale Estimate

£378,000

£360k - £397kHigh

Estimate

£378k

Range

£360k – £397k

Rent Estimate (pcm)

£1,700

£2k - £2k

Monthly

£1,700

Yield

5.83%

Verdict

Derived from HomePortfolio scores

4 Stillwater Mews earns an INVESTIGATE rating with HP Score 71/100. Investment score 61/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is limited (35/100). 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 covenantsHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

71/ 100

Mixed

Investment Score

61/ 100

Moderate

Crime Score

14/ 100

Low

Walkability

35/ 100

Mixed

Transit & Bike

Transit 5Bike 54

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceListing checked 2 Nov 2026

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

Valuation edge2.5/15
claims [AVM +7.4% (HIGH), sold-comps +6.4%, £/sqft +6.5%] → measured edge +0.50pp 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 12 Oct 2026
- valuation_snapshotsestimate for 44111032· as of 12 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 12.8%· as of 4 Nov 2026
Rental economics6/40
gross yield 5.8%; range width penalty ×0.91
- valuation_snapshotsrent estimate 1700/mo (range 1600-1850)· as of 12 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -357/mo, -21% 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 2 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 242 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 2 Nov 2026
Risk & liquidity14.7/15
333 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

£262,500£402,500

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£350,000

At the asking price

Monthly rent£1,700/mo

Evidenced range £1,600-£1,850

Interest rate5.4%

Loan to value75%

Cash required: £113,800
Net cash flow: -£4/mo
Cash on cash: -0.0%
Score at this price: 23

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.44 - 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 44111032Valuation edge · as of 12 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 12.8%Valuation edge · as of 4 Nov 2026
valuation_snapshotsrent estimate 1700/mo (range 1600-1850)Rental economics · as of 12 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 2 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 2 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 1700/mo (range 1600-1850)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 242 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£378,000

Rent Estimate (pcm)£1,700

Gross Yield5.83%

1y Growth+6.5%

3y Growth-2.7%

5y Growth-0.4%

10y Growth+3.1%

Last Sold Price£370,000 (2023-07-31)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonLow
MiningModerate
LandslideLow
Air QualityLow
NoiseBelow 40 dB

View Full Risk Report

Planning Activity

Recent Apps

0ME4 3SL

Approval Rate

-12mo

Development

low

MC/26/2085
Retrospective application for replacement and extension of rear existing garden patio area
Pending
MC/26/2048
Removal and replacement of existing cladding systems and associated facade components with non-combustible materials, installation of cavity barriers and fire-stopping, localised remediation to masonry and rendered wall systems, replacement and remediation of glazed spandrel panels, and associated ancillary works.
Pending
MC/26/1995
Retrospective application for that replacement of window to French doors to rear
Pending

View Planning Timeline