81 Stephenson Wharf, Hemel Hempstead, HP3 9WY

UPRN:10002009449Purpose Built Flat2 bedsBuilt 1996-2002

LeaseholdCouncil Tax: Band EEPC: C (80)

Data freshness:Listing· freshPrice Paid· freshPlanning· 4mo agoEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021

81 Stephenson Wharf, Hemel Hempstead, HP3 9WY

HP Score

/ 100

Strong

Verdict

today

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

Evidence

19 of 21 sources

Sale Estimate

£340,000

£323k - £357kHigh

Estimate

£340k

Range

£323k – £357k

Rent Estimate (pcm)

£1,700

£2k - £2k

Monthly

£1,700

Yield

6.00%

Verdict

Derived from HomePortfolio scores

81 Stephenson Wharf earns an INVESTIGATE rating with HP Score 75/100. Investment score 71/100 reflects strong fundamentals. Crime intensity is low. Walkability is limited (55/100). 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

75/ 100

Strong

Investment Score

71/ 100

High

Crime Score

25/ 100

Moderate

Walkability

55/ 100

Moderate

Transit & Bike

Transit 22Bike 34

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesLead to verifyListing checked 6 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 +0.0% (HIGH), sold-comps -3.7%, £/sqft -3.6%] → 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 9 Oct 2026
- valuation_snapshotsestimate for 10002009449· as of 9 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 7.6%· as of 20 Oct 2026
Rental economics7.2/40
gross yield 6.0%; range width penalty ×0.91
- valuation_snapshotsrent estimate 1700/mo (range 1600-1850)· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -315/mo, -19% 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 6 Nov 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 0 price cut(s), 249 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 6 Nov 2026
Risk & liquidity14.6/15
283 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

£255,000£391,000

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£340,000

At the asking price

Monthly rent£1,700/mo

Evidenced range £1,600-£1,850

Interest rate5.4%

Loan to value75%

Cash required: £110,300
Net cash flow: £29/mo
Cash on cash: 0.3%
Score at this price: 22

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 10002009449Valuation edge · as of 9 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 7.6%Valuation edge · as of 20 Oct 2026
valuation_snapshotsrent estimate 1700/mo (range 1600-1850)Rental economics · as of 9 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 6 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 6 Nov 2026

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 1700/mo (range 1600-1850)
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. 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£340,000

Rent Estimate (pcm)£1,700

Gross Yield6.00%

1y Growth+6.9%

3y Growth+3.2%

5y Growth+1.9%

10y Growth+2.9%

Last Sold Price£270,000 (2014-08-22)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonModerate
MiningSignificant
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0HP3 9WY

Approval Rate

-12mo

Development

low

26/02346/LDP
Loft conversion including hip to gable roof alterations, rear dormer window, Juliette balcony and velux windows to front elevation.
Pending
26/02344/ROC
Variation of Condition 3 (Approved Plans) attached to planning permission 26/01624/FHA
Pending
26/02326/ROC
Variation of Condition 3 attached to planning permission 26/00586/FUL
Pending

View Planning Timeline

Ownership

Corporate Ownership60.3%
Overseas OwnershipNo
Lease Term Remaining99 yrs
CovenantsNone
Lease TypeLeasehold
Last Ownership Change2014-08-22
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

12 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£36,473

Population Density8,394 /km²

Owner Occupied40%

Age Distribution

0-15 19%16-64 72%65+ 9%

View Area Profile

Schools Nearby

Nash Mills Church of England Primary School
0.3 mi
Good
Belswains Primary School
0.4 mi
Good
Two Waters Primary School
0.5 mi
Area grades2024
Inspected after Ofsted withdrew the single overall grade.
Chambersbury Primary School
0.8 mi
Good

4 of 13 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

64 Stephenson Wharf
-
£335k
-
33 Stephenson Wharf
-
£322k
-
53 Stephenson Wharf
-
£410k
-
88 Stephenson Wharf
-
£279k
-

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