37 Pen y Fon Street, Llanelli, SA15 2HY

UPRN:100100166184Terrace Property3 bedsBuilt 1967-1975

FreeholdCouncil Tax: Band BEPC: D (58)

Data freshness:Listing· freshPlanning· 4mo agoEPC· 6mo agoRisk· 2y agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021

HP Score

/ 100

Mixed

Verdict

3 days ago

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Mixed signals - investigate

Evidence

16 of 21 sources

Sale Estimate

£125,000

£119k - £132kHigh

Estimate

£125k

Range

£119k – £132k

Rent Estimate (pcm)

£750

£750 - £800

Monthly

£750

Yield

7.14%

Verdict

Derived from HomePortfolio scores

37 Pen y Fon Street earns an INVESTIGATE rating with HP Score 71/100. Investment score 68/100 reflects moderate fundamentals. Crime intensity is moderate. 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)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

71/ 100

Mixed

Investment Score

68/ 100

Moderate

Crime Score

41/ 100

Elevated

Walkability

No data

Transit & Bike

No data

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceListing 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 -0.8% (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 100100166184· as of 13 Oct 2026
Rental economics17.1/40
gross yield 7.1%; range width penalty ×1.00
- valuation_snapshotsrent estimate 750/mo (range 750-800)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -110/mo, -15% 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: 1 price cut(s), 197 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
362 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

£94,500£145,000

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£125,995

At the asking price

Monthly rent£750/mo

Evidenced range £750-£800

Interest rate5.4%

Loan to value75%

Cash required: £39,119
Net cash flow: £94/mo
Cash on cash: 2.9%
Score at this price: 32

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.76 - 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 100100166184Valuation edge · as of 13 Oct 2026
valuation_snapshotsrent estimate 750/mo (range 750-800)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 750/mo (range 750-800)
Seller motivation could not be scored
context, not scored: 1 price cut(s), 197 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. Ask the agent why the price was reduced and whether a previous sale fell through.
1 price cut(s) recorded on the listing history.
3. 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£125,000

Rent Estimate (pcm)£750

Gross Yield7.14%

1y Growth-

3y Growth+3.6%

5y Growth+4.2%

10y Growth+3.1%

Last Sold Price£86,500 (2006-11-02)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonModerate
MiningUnknown
LandslideModerate
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

0SA15 2HY

Approval Rate

-12mo

Development

low

PL/11521
Retrospective Change of use from D1, place of worship to D2 Assembly and leisure - community boxing hub
Pending
PL/11406
Proposed two storey extension to the rear and single storey extension to the front and side of the existing dwelling
Rejected
PL/11294
Discharge of Condition 7 (for Phase B only) on S/36948 as amended by PL/04400
Pending

View Planning Timeline