52 Lon Mafon, Sketty, Swansea, SA2 9ER

UPRN:100100343522Semi-Detached House3 bedsBuilt 1930-1949

FreeholdCouncil Tax: Band EEPC: D (58)

Data freshness:Listing· freshEPC· 5mo agoRisk· 2y agoAmenities· 1mo agoArea· Census 2021

HP Score

/ 100

Strong

Verdict

yesterday

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

Evidence

17 of 21 sources

Sale Estimate

£338,000

£271k - £406kLow

Estimate

£338k

Range

£271k – £406k

Rent Estimate (pcm)

£1,600

£2k - £2k

Monthly

£1,600

Yield

5.73%

Verdict

Derived from HomePortfolio scores

52 Lon Mafon earns an INVESTIGATE rating with HP Score 80/100. Investment score 73/100 reflects strong fundamentals. Crime intensity is 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

80/ 100

Strong

Investment Score

73/ 100

High

Crime Score

27/ 100

Moderate

Walkability

No data

Transit & Bike

No data

Opportunity

Not scored as an opportunity

We will not put a number on this one.

headline score requires valuation_edge (estimate confidence LOW below scoring floor)

What we could establish

Rental economics5.2/40
gross yield 5.7%; range width penalty ×0.89
- valuation_snapshotsrent estimate 1600/mo (range 1500-1750)· as of 10 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -367/mo, -23% 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 23 Oct 2026
Risk & liquidity9.3/15
368 sales/12mo in area; valuation range width 40%
- property_intelligencetransactions_12mo

Withholding a score is deliberate. A number built on missing or stale inputs would look more certain than the evidence allows.

Economics

What happens to your money

Your assumptions

Purchase price£335,000

At the asking price

Monthly rent£1,600/mo

Evidenced range £1,500-£1,750

Interest rate5.4%

Loan to value75%

Cash required: £108,550
Net cash flow: -£23/mo
Cash on cash: -0.3%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.42 - 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_snapshotsrent estimate 1600/mo (range 1500-1750)Rental economics · as of 10 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 23 Oct 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 23 Oct 2026
property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth Valuation methodology

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion
Valuation edge could not be scored
estimate confidence LOW below scoring floor
Rental economics needs verification before you rely on it
rent estimate 1600/mo (range 1500-1750)

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. Fill the valuation edge gap before relying on the score.
estimate confidence LOW below scoring floor
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£338,000

Rent Estimate (pcm)£1,600

Gross Yield5.73%

1y Growth+39.3%

3y Growth+2.1%

5y Growth+3.5%

10y Growth+4.1%

Last Sold Price£173,500 (2017-06-23)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonLow
MiningUnknown
LandslideModerate
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

7SA2 9ER

Approval Rate

66.7%12mo

Development

low

2026/1735/PRE
PRE APP - Rebuilding of two existing garages
Pending
2026/1716/PLD
Removal of side store and construction of a single storey side extension (application for a Certificate of Proposed Lawful Development)
Pending
2026/1697/S73
Proposed change of use of two units: Class A1 (Dry Cleaner) and Unique Use (Taxi Rank) to a single Class A3 Cafe/Bakery/Coffee Shop) - Variation of Condition 05 (transmission of sound energy) of Planning Permission 2026/0239/FUL granted 03/06/2026 to allow an amendment to lower the requirement for the minimum airborne sound insulation performance between the units.
Pending

View Planning Timeline