17 Birchgrove Street, Porth, CF39 9YA

UPRN:100100741201Terrace Property3 bedsBuilt 1900-1929

FreeholdCouncil Tax: Band AEPC: C (70)

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

HP Score

/ 100

Mixed

Verdict

4 days ago

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

Evidence

17 of 21 sources

Sale Estimate

£134,000

£121k - £147kMedium

Estimate

£134k

Range

£121k – £147k

Rent Estimate (pcm)

£1,050

£1k - £1k

Monthly

£1,050

Yield

8.40%

Verdict

Derived from HomePortfolio scores

17 Birchgrove Street earns an INVESTIGATE rating with HP Score 70/100. Investment score 67/100 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 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

70/ 100

Mixed

Investment Score

67/ 100

Moderate

Crime Score

39/ 100

Elevated

Walkability

No data

Transit & Bike

No data

Opportunity

Why this could be an opportunity

Reduced confidence2 independent sourcesListing checked 4 Nov 2026

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

Valuation edge-0.6/15
claims [AVM -11.9% (MEDIUM)] → measured edge -0.12pp 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 (MEDIUM confidence) · snapshot 12 Oct 2026
- valuation_snapshotsestimate for 100100741201· as of 12 Oct 2026
Rental economics27.2/40
gross yield 8.4%; range width penalty ×1.00
- valuation_snapshotsrent estimate 1050/mo (range 1000-1100)· as of 12 Oct 2026· verify before relying on this
Stress margin0.9/30
stressed cash flow +9/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 4 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 4 Nov 2026
Risk & liquidity12.9/15
285 sales/12mo in area; valuation range width 19%
- 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

£112,500£172,500

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£149,950

At the asking price

Monthly rent£1,050/mo

Evidenced range £1,000-£1,100

Interest rate5.4%

Loan to value75%

Cash required: £46,785
Net cash flow: £221/mo
Cash on cash: 5.7%
Score at this price: 40

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 2.07 - 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 100100741201Valuation edge · as of 12 Oct 2026
valuation_snapshotsrent estimate 1050/mo (range 1000-1100)Rental economics · as of 12 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 reduced
fewer independent sources agree, or a component could not be scored
Rental economics needs verification before you rely on it
rent estimate 1050/mo (range 1000-1100)
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 →

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£134,000

Rent Estimate (pcm)£1,050

Gross Yield8.40%

1y Growth+29.0%

3y Growth+2.5%

5y Growth+4.3%

10y Growth+5.0%

Last Sold Price£100,000 (2023-05-03)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonModerate
MiningUnknown
LandslideSignificant
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

0CF39 9YA

Approval Rate

-12mo

Development

low

26/0845/FUL
Change of use of existing retail premises to office accommodation, including associated internal alterations.
Pending
26/0771/FUL
Convert the existing front garden into off-street parking with space for two cars, along with a dropped kerb
Pending
26/0764/FUL
Proposed demolition of existing conservatory and construction of a two storey full width extension to form a utility room and bedroom, together with the erection of a front porch.
Approved

View Planning Timeline