31 Grange Park, St. Arvans, Chepstow, NP16 6EA

UPRN:100100258449Detached House5 bedsBuilt 1983-1990

FreeholdCouncil Tax: -EPC: D (66)

Data freshness:Listing· freshPrice Paid· freshPlanning· 4mo agoEPC· 1mo agoRisk· 2y agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021

31 Grange Park, St. Arvans, Chepstow, NP16 6EA

HP Score

/ 100

Strong

Verdict

2 days ago

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Strong fundamentals; flood risk not assessed

Evidence

14 of 21 sources

Sale Estimate

£796,000

£756k - £836kHigh

Estimate

£796k

Range

£756k – £836k

Rent Estimate (pcm)

£2,800

£3k - £3k

Monthly

£2,800

Yield

4.20%

Verdict

Derived from HomePortfolio scores

31 Grange Park earns an INVESTIGATE rating with HP Score 75/100. Investment score 60/100 reflects moderate fundamentals. Crime intensity is very low. 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)ONS Census 2021Police.ukHM Land Registry covenantsHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

75/ 100

Strong

Investment Score

60/ 100

Moderate

Crime Score

11/ 100

Low

Walkability

No data

Transit & Bike

No data

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 -0.5% (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 13 Oct 2026
- valuation_snapshotsestimate for 100100258449· as of 13 Oct 2026
Rental economics0/40
gross yield 4.2%; range width penalty ×0.74
- valuation_snapshotsrent estimate 2800/mo (range 2500-3150)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,447/mo, -52% 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), 37 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
226 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

£600,000£920,000

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£800,000

At the asking price

Monthly rent£2,800/mo

Evidenced range £2,500-£3,150

Interest rate5.4%

Loan to value75%

Cash required: £271,300
Net cash flow: -£762/mo
Cash on cash: -3.4%
Score at this price: 15

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.04 - 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 100100258449Valuation edge · as of 13 Oct 2026
valuation_snapshotsrent estimate 2800/mo (range 2500-3150)Rental economics · as of 13 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 2800/mo (range 2500-3150)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 37 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£796,000

Rent Estimate (pcm)£2,800

Gross Yield4.20%

1y Growth-

3y Growth+0.1%

5y Growth+2.0%

10y Growth+4.0%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonModerate
MiningLow
LandslideLow
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

0NP16 6EA

Approval Rate

-12mo

Development

low

DM/2026/01091
Replacement of the existing two-storey dwelling at Piccadilly Cottage with a new single storey house, together with associated external works including the provision of a new driveway and parking for occupants.
Pending
DM/2026/00453
Cypress - section fell Pseudo Acacia - section fell Ash - section fell Chilean Myrtle - section fell Holly - reduce height.
Approved
DM/2026/00611
Rear single storey extension.
Approved

View Planning Timeline