3 Kings Court, Southdown Road, Harpenden, AL5 1NY

UPRN:200003640316Purpose Built Flat2 bedsBuilt 1996-2002

LeaseholdCouncil Tax: Band CEPC: C (71)

Data freshness:Listing· freshPlanning· 4mo agoOwnership· freshEPC· 6mo agoRisk· 5mo agoCrime· freshConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 6mo ago

3 Kings Court, Southdown Road, Harpenden, AL5 1NY

HP Score

/ 100

Strong

Verdict

2 days ago

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

Evidence

20 of 21 sources

Sale Estimate

£369,000

£351k - £388kHigh

Estimate

£369k

Range

£351k – £388k

Rent Estimate (pcm)

£1,650

£2k - £2k

Monthly

£1,650

Yield

5.28%

Verdict

Derived from HomePortfolio scores

3 Kings Court earns an INVESTIGATE rating with HP Score 83/100. Investment score 69/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is good (76/100). 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 addressDefra strategic noise mapping, England Round 4 (Contains Defra data © Crown copyright and database right 2023-2024, Open Government Licence v3.0)Walk ScoreONS 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

83/ 100

Strong

Investment Score

69/ 100

Moderate

Crime Score

10/ 100

Low

Walkability

76/ 100

High

Transit & Bike

Transit 22Bike 56

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesLead to verifyListing checked 11 Nov 2026

This rests largely on a single source. Treat the score as a prompt to investigate, not a conclusion.

Check before relying on this score: leasehold with no service charge disclosed - the stress test assumes GBP 0. It ranks after every home whose inputs are verified.

Valuation edge0/15
claims [AVM -1.6% (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 11 Nov 2026
- valuation_snapshotsestimate for 200003640316· as of 11 Nov 2026
Rental economics2/40
gross yield 5.3%; range width penalty ×0.90
- valuation_snapshotsrent estimate 1650/mo (range 1500-1750)· as of 11 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -499/mo, -30% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); fails the stress - earns nothing; leasehold with no service charge disclosed - the stress assumes GBP 0
- underwriting_assumptionscosts not disclosed by the advert· as of 11 Nov 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 0 price cut(s), 73 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 11 Nov 2026
Risk & liquidity14.6/15
303 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

£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£1,650/mo

Evidenced range £1,500-£1,750

Interest rate5.4%

Loan to value75%

Cash required: £122,550
Net cash flow: -£123/mo
Cash on cash: -1.2%
Score at this price: 17

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.30 - 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 200003640316Valuation edge · as of 11 Nov 2026
valuation_snapshotsrent estimate 1650/mo (range 1500-1750)Rental economics · as of 11 Nov 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 11 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 11 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 1650/mo (range 1500-1750)
Stress margin needs verification before you rely on it
costs not disclosed by the advert

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. 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£369,000

Rent Estimate (pcm)£1,650

Gross Yield5.28%

1y Growth-

3y Growth-1.1%

5y Growth+2.0%

10y Growth+2.8%

Last Sold Price£358,500 (2022-08-18)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonLow
MiningLow
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0AL5 1NY

Approval Rate

-12mo

Development

low

26/0580/TCA
G1 - Reduce regrowth back to previous levels, cutting back to boundary line - General maintenance to stop trees encroaching.
Pending
26/0578/TCA
T1 Silver Birch - Crown reduction by 1-2m approx and clear growth away from neighbours flats T2 Silver Birch - Crown reduction by 1-2m T3 Silver Birch (dead) - Fell G4 Acacia (destruction to surrounding paving) - Fell
Pending
26/0545/TCA
Fell one apple tree in rear garden
Pending

View Planning Timeline

Ownership

Corporate Ownership55%
Overseas OwnershipNo
Lease Term Remaining99 yrs
CovenantsRestrictive
Lease TypeLeasehold
Last Ownership Change2022-08-18
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

15 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£45,543

Population Density-

Owner Occupied88%

Age Distribution

0-15 28%16-64 58%65+ 14%

View Area Profile

Schools Nearby

St Dominic Catholic Primary School
0.2 mi
Inspected as St Dominic Catholic Primary School (URN 117478) on 22 Nov 2023
Harpenden Academy
0.5 mi
Inspected as Harpenden Free School (URN 138561) on 3 May 2016
The Grove Junior School
0.5 mi
Good
Crabtree Infants' School
0.6 mi
Outstanding

6 of 11 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

1 Kings Court
-
£368k
-
12 Kings Court
-
£245k
-
10 Kings Court
-
£355k
-
15 Kings Court
-
£240k
-

Boundary data not available for this property

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