6C Merthyr Street, Cathays, Cardiff, CF24 4JJ

UPRN:100100029863Detached House3 bedsBuilt 1996-2002

FreeholdCouncil Tax: Band EEPC: C (72)

Data freshness:Listing· freshPlanning· 5mo agoOwnership· freshRisk· 2y agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 4mo ago

6C Merthyr Street, Cathays, Cardiff, CF24 4JJ

HP Score

/ 100

Strong

Verdict

today

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

Evidence

18 of 21 sources

Sale Estimate

£293,000

£278k - £307kHigh

Estimate

£293k

Range

£278k – £307k

Rent Estimate (pcm)

£1,750

£2k - £2k

Monthly

£1,750

Yield

7.78%

Verdict

Derived from HomePortfolio scores

6C Merthyr Street earns an INVESTIGATE rating with HP Score 84/100. Investment score 68/100 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 NationsOfcom mobile coverageMarket estimates (third-party AVM)HM Land Registry sales matched to addressONS 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

84/ 100

Strong

Investment Score

68/ 100

Moderate

Crime Score

12/ 100

Low

Walkability

No data

Transit & Bike

No data

Opportunity

Why this could be an opportunity

High confidence3 independent sourcesListing checked 9 Nov 2026

Every component scored, and three or more independent sources agree.

Valuation edge1.5/15
claims [AVM +7.8% (HIGH), sold-comps +1.8%, £/sqft +1.8%] → measured edge +0.30pp 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 100100029863· as of 12 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 10.5%· as of 6 Nov 2026
Rental economics21.6/40
gross yield 7.8%; range width penalty ×0.97
- valuation_snapshotsrent estimate 1750/mo (range 1650-1850)· as of 12 Oct 2026· verify before relying on this
Stress margin1/30
stressed cash flow +17/mo, +1% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); passes the stress
- underwriting_assumptionscosts not disclosed by the advert· as of 9 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 32 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 9 Nov 2026
Risk & liquidity14.7/15
447 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 sensitivityScores 70+ up to £209,000

£202,500£310,500

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£270,000

At the asking price

Monthly rent£1,750/mo

Evidenced range £1,650-£1,850

Interest rate5.4%

Loan to value75%

Cash required: £85,800
Net cash flow: £300/mo
Cash on cash: 4.2%
Score at this price: 39

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.92 - 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 100100029863Valuation edge · as of 12 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 10.5%Valuation edge · as of 6 Nov 2026
valuation_snapshotsrent estimate 1750/mo (range 1650-1850)Rental economics · as of 12 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 9 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 9 Nov 2026

Risks

What could kill this deal

Rental economics needs verification before you rely on it
rent estimate 1750/mo (range 1650-1850)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 32 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 →flood, subsidence, crime, environment - the full domain

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. Set your walk-away price before viewing - above £209,000 the deal stops scoring well.
Computed by re-running the score at higher prices.
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£293,000

Rent Estimate (pcm)£1,750

Gross Yield7.78%

1y Growth+10.0%

3y Growth+2.5%

5y Growth+3.4%

10y Growth+3.9%

Last Sold Price£260,000 (2023-07-17)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonLow
MiningLow
LandslideModerate
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

1CF24 4JJ

Approval Rate

100%12mo

Development

low

26/02271/VAR
Proposed Rear Extension (Approved 12/09/2023 - 23/00804/HSE) Variation of Condition 2 (approved plans) of 23/00804/HSE - To reduce the scope of works to only include the rear single storey lean to element with the approved side return extension to be omitted along with proposed first floor annex works
Pending
26/02256/DOC
Discharge of Condition 9 (Repositioning of Ladders) of 24/02796/LBC.
Pending
26/02230/DOC
Discharge of Condition 8 (Flat Roof Replacement) of 24/02796/LBC
Pending

View Planning Timeline