Courtleigh, 19 St Martin's Road, Caerphilly, CF83 1EF

UPRN:43025740-Beds -Built 1900-1929

Tenure: -Council Tax: Band FEPC: D (60)

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

Courtleigh, 19 St Martin's Road, Caerphilly, CF83 1EF

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

£547,000

£520k - £575kHigh

Estimate

£547k

Range

£520k – £575k

Rent Estimate (pcm)

£2,450

£2k - £3k

Monthly

£2,450

Yield

5.35%

Verdict

Derived from HomePortfolio scores

Courtleigh earns an INVESTIGATE rating with HP Score 60/100. Investment score 63/100 reflects moderate fundamentals. Crime intensity is elevated. Flood risk is not assessed: check the Environment Agency long-term flood map before offering. 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)ONS 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

60/ 100

Mixed

Investment Score

63/ 100

Moderate

Crime Score

75/ 100

Elevated

Walkability

No data

Transit & Bike

No data

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 30 Oct 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 10 Oct 2026
- valuation_snapshotsestimate for 43025740· as of 10 Oct 2026
Rental economics2.4/40
gross yield 5.3%; range width penalty ×0.87
- valuation_snapshotsrent estimate 2450/mo (range 2250-2650)· as of 10 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -650/mo, -27% 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 30 Oct 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 97 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 30 Oct 2026
Risk & liquidity14.6/15
552 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

£412,500£632,500

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£550,000

At the asking price

Monthly rent£2,450/mo

Evidenced range £2,250-£2,650

Interest rate5.4%

Loan to value75%

Cash required: £183,800
Net cash flow: -£160/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 43025740Valuation edge · as of 10 Oct 2026
valuation_snapshotsrent estimate 2450/mo (range 2250-2650)Rental economics · as of 10 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 30 Oct 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 30 Oct 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 2450/mo (range 2250-2650)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 97 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£547,000

Rent Estimate (pcm)£2,450

Gross Yield5.35%

1y Growth-

3y Growth+3.9%

5y Growth+5.6%

10y Growth+4.8%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonLow
MiningUnknown
LandslideModerate
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

0CF83 1EF

Approval Rate

-12mo

Development

low

26/0697/FULL
Erect two storey and single storey rear extensions with internal alterations to extend an existing two storey dental practice, works include the erection of a detached refuse storage area
Pending
26/0691/HH
Erect a new porch, new pool enclosure, adjustments to windows and doors
Pending
26/0680/COND
Discharge conditions 17 (Scheme for control of odour), 19 (Illumination- site lighting), 25 (Travel plan (commercial development) and 27 (Odour - ventilation scheme) of planning consent 24/0120/LA (Erect new leisure and wellbeing hub including swimming pool, studios and fitness suite, along with associated car parking and landscaping)
Pending

View Planning Timeline