9 James Street, Mountain Ash, CF45 3UH

UPRN:100100715019Terrace Property4 bedsBuilt 1900-1929

FreeholdCouncil Tax: Band AEPC: E (54)

Data freshness:Listing· freshPrice Paid· freshPlanning· 4mo agoEPC· 3mo agoRisk· 2y agoConnectivity· 1mo agoAmenities· 1mo agoArea· Census 2021

HP Score

/ 100

Strong

Verdict

3 days ago

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

Evidence

16 of 21 sources

Sale Estimate

£133,000

£126k - £140kHigh

Estimate

£133k

Range

£126k – £140k

Rent Estimate (pcm)

£1,000

£950 - £1k

Monthly

£1,000

Yield

9.23%

Verdict

Derived from HomePortfolio scores

9 James Street earns an INVESTIGATE rating with HP Score 76/100. Investment score 66/100 reflects moderate fundamentals. Crime intensity is 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)ONS Census 2021Police.ukHM Land Registry company ownershipHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

76/ 100

Strong

Investment Score

66/ 100

Moderate

Crime Score

19/ 100

Moderate

Walkability

No data

Transit & Bike

No data

Opportunity

Why this could be an opportunity

Reduced confidence2 independent sourcesListing checked 30 Oct 2026

Fewer independent sources agree, or a component could not be scored.

Valuation edge0/15
claims [AVM +2.3% (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 100100715019· as of 10 Oct 2026
Rental economics33.9/40
gross yield 9.2%; range width penalty ×1.00
- valuation_snapshotsrent estimate 1000/mo (range 950-1050)· as of 10 Oct 2026· verify before relying on this
Stress margin5.7/30
stressed cash flow +57/mo, +6% 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 30 Oct 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 180 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 & liquidity14.5/15
207 sales/12mo in area; valuation range width 11%
- 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 £107,000

£97,500£149,500

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£129,950

At the asking price

Monthly rent£1,000/mo

Evidenced range £950-£1,050

Interest rate5.4%

Loan to value75%

Cash required: £40,385
Net cash flow: £254/mo
Cash on cash: 7.5%
Score at this price: 54

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 2.28 - 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 100100715019Valuation edge · as of 10 Oct 2026
valuation_snapshotsrent estimate 1000/mo (range 950-1050)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 reduced
fewer independent sources agree, or a component could not be scored
Rental economics needs verification before you rely on it
rent estimate 1000/mo (range 950-1050)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 180 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. Set your walk-away price before viewing - above £107,000 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£133,000

Rent Estimate (pcm)£1,000

Gross Yield9.23%

1y Growth-

3y Growth+6.3%

5y Growth+6.8%

10y Growth+5.6%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonModerate
MiningUnknown
LandslideSignificant
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

0CF45 3UH

Approval Rate

-12mo

Development

low

26/0420/TCA
Side prune lime tree and remove overhang of National Grid apparatus.
Approved
26/0128/NMA
Application for non material amendment to condition 1 (approved plans and documents) attached to reserved matters approval 24/0213/RRM dated 9 June 2025 to substitute the use of hung tiles with facing brick in respect plots 1, 2 and 3 within Phase 4h
Rejected

View Planning Timeline