21 Castle Street, Usk, NP15 1BU

UPRN:10033371256End Terrace Property2 bedsBuilt 2024

FreeholdCouncil Tax: Band DEPC: B (84)

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

HP Score

/ 100

Strong

Verdict

2 days ago

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

Evidence

14 of 21 sources

Sale Estimate

£402,000

£362k - £443kMedium

Estimate

£402k

Range

£362k – £443k

Rent Estimate (pcm)

£1,450

£1k - £2k

Monthly

£1,450

Yield

4.64%

Verdict

Derived from HomePortfolio scores

21 Castle Street earns an INVESTIGATE rating with HP Score 88/100. 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 listingsMarket estimates (third-party AVM)HM Land Registry sales matched to addressONS Census 2021Police.ukHM Land Registry covenantsHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

88/ 100

Strong

Investment Score

No data

Crime Score

5/ 100

Low

Walkability

No data

Transit & Bike

No data

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 6 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% (MEDIUM), sold-comps -21.8%, £/sqft -21.9%] → 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 (MEDIUM confidence) · snapshot 10 Oct 2026
- valuation_snapshotsestimate for 10033371256· as of 10 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 7 comps, dispersion 16.4%· as of 6 Nov 2026
Rental economics0/40
gross yield 4.6%; range width penalty ×0.79
- valuation_snapshotsrent estimate 1450/mo (range 1300-1600)· as of 10 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -646/mo, -45% 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 6 Nov 2026
Seller motivationNot scored
no listing-history inputs (first published date, price changes)
Risk & liquidity12.8/15
74 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

£281,000£431,000

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£375,000

At the asking price

Monthly rent£1,450/mo

Evidenced range £1,300-£1,600

Interest rate5.4%

Loan to value75%

Cash required: £122,550
Net cash flow: -£262/mo
Cash on cash: -2.6%
Score at this price: 13

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.15 - 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 10033371256Valuation edge · as of 10 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 7 comps, dispersion 16.4%Valuation edge · as of 6 Nov 2026
valuation_snapshotsrent estimate 1450/mo (range 1300-1600)Rental economics · as of 10 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 6 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
rent estimate 1450/mo (range 1300-1600)
Seller motivation could not be scored
no listing-history inputs (first published date, price changes)

Property risk deep-dive →flood, subsidence, crime, environment - the full domain

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£402,000

Rent Estimate (pcm)£1,450

Gross Yield4.64%

1y Growth-

3y Growth+1.1%

5y Growth+0.9%

10y Growth+4.6%

Last Sold Price£380,000 (2025-09-26)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceLow
RadonModerate
MiningLow
LandslideModerate
Air QualityLow
NoiseWithheld

View Full Risk Report

Planning Activity

Recent Apps

2NP15 1BU

Approval Rate

100%12mo

Development

low

DM/2026/01301
Formation of parking and turning area serving existing dwellings (no 12, 14 and 20 Porthycarne Street).
Pending
DM/2026/01270
Proposed change of use from residential curtilage to staff car parking. Retrospective application including the retention of Timber Close boarded boundary fence.
Pending
DM/2026/01224
Discharge of condition 2 (details of appearance) relating to planning DM/2024/00027.
Pending

View Planning Timeline