Gaer Gerrig, Maerdy, Corwen, LL21 0PE

UPRN:10035307328Detached House4 bedsBuilt before 1900

FreeholdCouncil Tax: -EPC: F (28)

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

HP Score

/ 100

Mixed

Verdict

yesterday

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

Evidence

15 of 21 sources

Sale Estimate

£572,000

£515k - £629kMedium

Estimate

£572k

Range

£515k – £629k

Rent Estimate (pcm)

£2,500

£2k - £3k

Monthly

£2,500

Yield

3.75%

Verdict

Derived from HomePortfolio scores

Gaer Gerrig earns an INVESTIGATE rating with HP Score 67/100. Investment score 60/100 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 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

67/ 100

Mixed

Investment Score

60/ 100

Moderate

Crime Score

8/ 100

Low

Walkability

No data

Transit & Bike

No data

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 2 Nov 2026

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

Valuation edge-0.6/15
claims [AVM -39.9% (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 10035307328· as of 12 Oct 2026
Rental economics0/40
gross yield 3.8%; range width penalty ×0.84
- valuation_snapshotsrent estimate 2500/mo (range 2300-2750)· as of 12 Oct 2026· verify before relying on this
- listing_factslisting text signals condition works - budget before trusting any yield· as of 2 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,668/mo, -67% 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 2 Nov 2026
Seller motivationNot scored
no listing-history inputs (first published date, price changes)
Risk & liquidity12.9/15
51 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

£600,000£920,000

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£800,000

At the asking price

Monthly rent£2,500/mo

Evidenced range £2,300-£2,750

Interest rate5.4%

Loan to value75%

Cash required: £271,300
Net cash flow: -£969/mo
Cash on cash: -4.3%
Score at this price: 12

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.93 - 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 10035307328Valuation edge · as of 12 Oct 2026
valuation_snapshotsrent estimate 2500/mo (range 2300-2750)Rental economics · as of 12 Oct 2026 · verify before relying on this
listing_factslisting text signals condition works - budget before trusting any yieldRental economics · as of 2 Nov 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 2 Nov 2026
property_intelligencetransactions_12moRisk & liquidity

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 2500/mo (range 2300-2750)
Rental economics needs verification before you rely on it
listing text signals condition works - budget before trusting any yield

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£572,000

Rent Estimate (pcm)£2,500

Gross Yield3.75%

1y Growth-

3y Growth-1.7%

5y Growth-3.2%

10y Growth+3.1%

Last Sold Price£503,000 (2021-11-29)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonModerate
MiningLow
LandslideSignificant
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

0LL21 0PE

Approval Rate

-12mo

Development

low

0/51350
Remove existing wooden storage building and replace with a single wooden stable (3.6m x 3.6m) in the same position with a 4m x 4m concrete base
Conditions
0/50199
Approval of condition no 7 (New Access) of planning approval 0/46680 (Change of use of former traditional agricultural buildings to four units of holiday accommodation, demolition of unsafe modern agricultural building and creation of additional access onto the site to improve safety accessing the site)
Approved
0/50396
Change the use of the land for the siting of bell tents, ancillary toilet/kitchen block, along with associated roads, parking areas, and re-instatement of existing access and the proposed new access.
Rejected

View Planning Timeline