27 Heol Waun Wen, Cwmgelli, Blackwood, NP12 1FZ

UPRN:43178587Detached House3 bedsBuilt 2023

FreeholdCouncil Tax: Band EEPC: A (93)

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

27 Heol Waun Wen, Cwmgelli, Blackwood, NP12 1FZ

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

£387,000

£348k - £425kMedium

Estimate

£387k

Range

£348k – £425k

Rent Estimate (pcm)

£1,200

£1k - £1k

Monthly

£1,200

Yield

3.79%

Verdict

Derived from HomePortfolio scores

27 Heol Waun Wen earns an INVESTIGATE rating with HP Score 83/100. Investment score 75/100 reflects strong 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 listingsMarket 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

83/ 100

Strong

Investment Score

75/ 100

High

Crime Score

13/ 100

Low

Walkability

No data

Transit & Bike

No data

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 28 Oct 2026

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

Valuation edge0/15
claims [AVM +1.8% (MEDIUM), sold-comps -18.8%, £/sqft -18.6%] → 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 (MEDIUM confidence) · snapshot 13 Oct 2026
- valuation_snapshotsestimate for 43178587· as of 13 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 8.1%· as of 18 Oct 2026
Rental economics0/40
gross yield 3.8%; range width penalty ×0.70
- valuation_snapshotsrent estimate 1200/mo (range 1050-1350)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -851/mo, -71% 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 28 Oct 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 64 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 28 Oct 2026
Risk & liquidity12.9/15
289 sales/12mo in area; valuation range width 20%
- 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

£285,000£437,000

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£380,000

At the asking price

Monthly rent£1,200/mo

Evidenced range £1,050-£1,350

Interest rate5.4%

Loan to value75%

Cash required: £124,300
Net cash flow: -£452/mo
Cash on cash: -4.4%
Score at this price: 13

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.94 - below 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 43178587Valuation edge · as of 13 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 8.1%Valuation edge · as of 18 Oct 2026
valuation_snapshotsrent estimate 1200/mo (range 1050-1350)Rental economics · as of 13 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 28 Oct 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 28 Oct 2026

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 1200/mo (range 1050-1350)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 64 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. 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.
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£387,000

Rent Estimate (pcm)£1,200

Gross Yield3.79%

1y Growth-

3y Growth+5.8%

5y Growth+3.7%

10y Growth+5.5%

Last Sold Price£340,000 (2025-06-27)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonModerate
MiningUnknown
LandslideSignificant
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

0NP12 1FZ

Approval Rate

-12mo

Development

low

26/0719/NMA
Seek approval of a non-material amendment to planning consent 19/1024/RM (Seek approval of the reserved matters regarding details of appearance, landscaping, layout and scale of planning consent 15/0252/OUT (granted on appeal reference APP/K6920/A/15/3137884) (Erect residential development, public open space, landscaping, highway improvements and associated engineering works with all matters reserved except for access) (as renewed by planning consent 18/1059/NCC)) to amend the approved retaining wall arrangement serving plots 150-158 to provide a PHI permacrib interlocking timber retaining wall together with associated land regrading, landscaping, drainage and boundary treatment
Pending
26/0632/COU
Change the use of existing property into three dwellings & extension to front elevation
Pending
26/0617/RET
Retain construction of raised decking in rear garden
Pending

View Planning Timeline