1 Dumbarton House Court, Bryn y Mor Crescent, Swansea, SA1 4QX
UPRN:10010045028Purpose Built Flat1 bedsBuilt -
LeaseholdCouncil Tax: -EPC: -
Data freshness:●Listing· freshListing: fresh, refreshed 4d ago (2026-11-05T04:00:06.311246+00:00)●Planning· 4mo agoPlanning: stale, refreshed 4mo ago (2026-07-10T09:52:00.918714+00:00)●Risk· 2y agoRisk: stale, refreshed 2y ago (2024-12-31T00:00:00+00:00)●Connectivity· 1mo agoConnectivity: ageing, refreshed 1mo ago (2026-10-03T06:43:10.905825+00:00)●Schools· 1mo agoSchools: ageing, refreshed 1mo ago (2026-10-06T08:24:30.427161+00:00)●Amenities· 2mo agoAmenities: ageing, refreshed 2mo ago (2026-09-23T00:00:00+00:00)●Area· Census 2021Area: static reference data (Census 2021); authoritative and does not refresh
HP Score
74
/ 100
Mixed
Verdict
4 days ago
Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Mixed signals - investigate
Evidence
16 of 21 sources
Sale Estimate
£75,000
£71k - £78kHigh
Estimate
£75k
Range
£71k – £78k
Rent Estimate (pcm)
£400
£350 - £400
Monthly
£400
Yield
6.00%
Verdict
Derived from HomePortfolio scores
1 Dumbarton House Court earns an INVESTIGATE rating with HP Score 74/100. Investment score 60/100 reflects moderate fundamentals. Crime intensity is 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 SourcesPortal 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS
Demolition of outbuildings and construction of two detached dwellings - Non Material Amendment of Planning Permission 2016/1619 granted 5th January 2018 to allow the relocation of foul drainage only entry into the Welsh Water system - CMH1
Pending
2026/1803/TPO
To fell one English Elm tree, Crown Reduce and lop 3 no. Holm Oak Trees and one Scots Pine tree covered by TPO's 26 and 49
Pending
2026/1792/FUL
Change of use from a house in multiple occupation (Use Class C4), to a 7-bedroom, 7-person house in multiple occupation (Unique Use), with associated internal and external alterations, bin store and covered cycle store.
No registered title polygon, building footprint, or street match for this property yet.
Why: No HMLR INSPIRE / OSM footprint / OS Open USRN match for this UPRN
Source: HM Land Registry INSPIRE / OpenStreetMap / OS Open USRN
Opportunity
Why this could be an opportunity
8
Low confidence0 independent sourcesListing checked 5 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 -6.7% (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 10010045028· as of 13 Oct 2026
Rental economics7.6/40
gross yield 6.0%; range width penalty ×0.95
valuation_snapshotsrent estimate 400/mo (range 350-400)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -309/mo, -77% 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 5 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 347 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 5 Nov 2026
Risk & liquidity0/15
lease 70 years (under 80): most lenders refuse it - risk scores nothing; 446 sales/12mo in area; valuation range width 9%
property_intelligencetransactions_12mo
listing_factslease 70 years remaining (advert)· as of 5 Nov 2026
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
£60,000£92,000
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
£80,000
At the asking price
£400/mo
Evidenced range £350-£400
5.4%
75%
Cash required
£25,300
Net cash flow
£7/mo
Cash on cash
0.3%
Score at this price
8
After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.48 - 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 10010045028Valuation edge · as of 13 Oct 2026
valuation_snapshotsrent estimate 400/mo (range 350-400)Rental economics · as of 13 Oct 2026 · verify before relying on this
listing_factsservice charge / ground rent from the advertStress margin · as of 5 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 5 Nov 2026