5 The Old Grammar School, Church Street, Cowbridge, CF71 7BB

UPRN:64048534Flat/Maisonette3 bedsBuilt before 1900

LeaseholdCouncil Tax: -EPC: D (67)

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

5 The Old Grammar School, Church Street, Cowbridge, CF71 7BB

HP Score

/ 100

Strong

Verdict

yesterday

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

Evidence

15 of 21 sources

Sale Estimate

£797,000

£757k - £837kHigh

Estimate

£797k

Range

£757k – £837k

Rent Estimate (pcm)

£2,450

£2k - £3k

Monthly

£2,450

Yield

3.70%

Verdict

Derived from HomePortfolio scores

5 The Old Grammar School earns an INVESTIGATE rating with HP Score 80/100. Investment score 68/100 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 leasehold. 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 covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

80/ 100

Strong

Investment Score

68/ 100

Moderate

Crime Score

15/ 100

Low

Walkability

No data

Transit & Bike

No data

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 3 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 +0.3% (HIGH), sold-comps -3.1%, £/sqft -3.1%] → 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 12 Oct 2026
- valuation_snapshotsestimate for 64048534· as of 12 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 4 comps, dispersion 11.6%· as of 27 Oct 2026
Rental economics0/40
gross yield 3.7%; range width penalty ×0.67
- valuation_snapshotsrent estimate 2450/mo (range 2150-2800)· as of 12 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,935/mo, -79% of rent (6.75% on a 75% loan; disclosed service charge and ground rent); fails the stress - earns nothing
- listing_factsservice charge / ground rent from the advert· as of 3 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 237 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 & liquidity14.6/15
94 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

£596,000£914,000

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£795,000

At the asking price

Monthly rent£2,450/mo

Evidenced range £2,150-£2,800

Interest rate5.4%

Loan to value75%

Cash required: £269,550
Net cash flow: -£987/mo
Cash on cash: -4.4%
Score at this price: 15

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.91 - 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 64048534Valuation edge · as of 12 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 4 comps, dispersion 11.6%Valuation edge · as of 27 Oct 2026
valuation_snapshotsrent estimate 2450/mo (range 2150-2800)Rental economics · as of 12 Oct 2026 · verify before relying on this
listing_factsservice charge / ground rent from the advertStress margin · as of 3 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 3 Nov 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 2450/mo (range 2150-2800)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 237 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£797,000

Rent Estimate (pcm)£2,450

Gross Yield3.70%

1y Growth-

3y Growth-4.2%

5y Growth+0.8%

10y Growth+2.1%

Last Sold Price£531,000 (2008-01-25)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonModerate
MiningLow
LandslideModerate
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

-CF71 7BB

Approval Rate

-12mo

Development

2026/00243/FUL
Proposed Change of Use of first floor from A1 Retail (Hair Salon) to D2 Assembly and Leisure (Yoga Studio)
Rejected
2025/01074/FUL
Addition of a rear extension to the building at the rear of the property, and raising the height of a portion of the boundary wall to hide the extension roof
Approved
2025/00816/TCA
Removal of ash tree due to ash dieback. Tree is located near the Southern boundary of the property and some branches overhang the adjacent park area.
Approved

View Planning Timeline