Apartment 316, Castle Buildings, 32 Castle Street, Swansea, SA1 1JG

UPRN:10010045686Flat/Maisonette1 bedsBuilt 2003-2006

LeaseholdCouncil Tax: -EPC: C (77)

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

Apartment 316, Castle Buildings, 32 Castle Street, Swansea, SA1 1JG

HP Score

/ 100

Mixed

Verdict

today

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

Evidence

17 of 21 sources

Sale Estimate

£70,000

£67k - £74kHigh

Estimate

£70k

Range

£67k – £74k

Rent Estimate (pcm)

£350

£350 - £400

Monthly

£350

Yield

6.00%

Verdict

Derived from HomePortfolio scores

Apartment 316 earns an INVESTIGATE rating with HP Score 47/100. Investment score 65/100 reflects moderate fundamentals. Crime intensity is elevated. 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 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

HP Score

47/ 100

Mixed

Investment Score

65/ 100

Moderate

100

Crime Score

100/ 100

Elevated

Walkability

No data

Transit & Bike

No data

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceListing 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 +0.0% (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 10010045686· as of 13 Oct 2026
Rental economics22.4/40
gross yield 7.8% on contractual rent (listing-disclosed tenancy); contractual 675/mo far above the 350/mo estimate - credited at the 1.3x cap, verify
- listing_factscontractual rent 675/mo (tenanted)· as of 5 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -117/mo, -26% 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: 1 price cut(s), 269 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 & liquidity14.6/15
446 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

£52,500£80,500

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£70,000

At the asking price

Monthly rent£350/mo

Evidenced range £350-£400

Interest rate5.4%

Loan to value75%

Cash required: £22,300
Net cash flow: £6/mo
Cash on cash: 0.3%
Score at this price: 37

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 10010045686Valuation edge · as of 13 Oct 2026
listing_factscontractual rent 675/mo (tenanted)Rental economics · as of 5 Nov 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
property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth

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
contractual rent 675/mo (tenanted)
Seller motivation could not be scored
context, not scored: 1 price cut(s), 269 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. Ask the agent why the price was reduced and whether a previous sale fell through.
1 price cut(s) recorded on the listing history.
3. 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.
4. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Valuation & Market

Sale Estimate£70,000

Rent Estimate (pcm)£350

Gross Yield6.00%

1y Growth-

3y Growth+1.2%

5y Growth+1.5%

10y Growth+2.0%

Last Sold Price£105,000 (2006-10-24)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonModerate
MiningUnknown
LandslideModerate
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

0SA1 1JG

Approval Rate

-12mo

Development

low

2026/1812/S73
Provision of roof extension and pergola to facilitate access to new roof terrace areas - Variation of Condition 01 of Planning Permission 2021/1943/FUL granted 15/12/2021 to allow an extenson of time in which to implement the permission.
Pending
2026/1774/DOC
Repair, refurbishment and retrofitting - Discharge condition 6 (details of front elevation doors) of Listed Building Consent 2025/1485/S99 granted 17th October 2025
Pending
2026/1780/ELD
Use as a 5 bed HMO (application for a Certificate of Existing Lawful Development)
Pending

View Planning Timeline