35 Mary Street, Mountain Ash, CF45 4HH

UPRN:100100712785Mid Terrace House2 bedsBuilt 1900-1929

FreeholdCouncil Tax: Band AEPC: D (66)

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

HP Score

/ 100

Strong

Verdict

3 days ago

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

Evidence

17 of 21 sources

Sale Estimate

£118,000

£113k - £124kHigh

Estimate

£118k

Range

£113k – £124k

Rent Estimate (pcm)

£900

£850 - £950

Monthly

£900

Yield

8.31%

Verdict

Derived from HomePortfolio scores

35 Mary Street earns an INVESTIGATE rating with HP Score 84/100. Investment score 70/100 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 Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

84/ 100

Strong

Investment Score

70/ 100

Moderate

Crime Score

9/ 100

Low

Walkability

No data

Transit & Bike

No data

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceListing checked 3 Nov 2026

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

Valuation edge-1.6/15
claims [AVM -10.2% (HIGH)] → measured edge -0.33pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp; asking more than 10% above the estimate (measured -0.33pp)
Market estimate used (HIGH confidence) · snapshot 12 Oct 2026
- valuation_snapshotsestimate for 100100712785· as of 12 Oct 2026
Rental economics25.9/40
gross yield 8.3%; range width penalty ×0.98
- valuation_snapshotsrent estimate 900/mo (range 850-950)· as of 12 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -17/mo, -2% 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 3 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 52 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 3 Nov 2026
Risk & liquidity14.8/15
207 sales/12mo in area; valuation range width 9%
- 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

£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£130,000

At the asking price

Monthly rent£900/mo

Evidenced range £850-£950

Interest rate5.4%

Loan to value75%

Cash required: £40,400
Net cash flow: £184/mo
Cash on cash: 5.5%
Score at this price: 39

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 2.05 - 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 100100712785Valuation edge · as of 12 Oct 2026
valuation_snapshotsrent estimate 900/mo (range 850-950)Rental economics · as of 12 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 3 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 3 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 900/mo (range 850-950)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 52 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£118,000

Rent Estimate (pcm)£900

Gross Yield8.31%

1y Growth-19.1%

3y Growth+6.3%

5y Growth+6.8%

10y Growth+5.6%

Last Sold Price£75,000 (2020-02-18)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonModerate
MiningUnknown
LandslideSignificant
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

0CF45 4HH

Approval Rate

-12mo

Development

low

26/0844/FUL
Retrospective planning application for the retention of an InPost Parcel Locker
Pending
26/0780/FUL
Proposed two-storey rear extension with additional first-floor rear patio and additional guarding around existing retaining wall.
Pending
26/0680/FUL
Proposed Single-storey Rear Extension
Approved

View Planning Timeline