37 St Johns Road, Hemel Hempstead, HP1 1QQ

UPRN:100080705398Mid Terrace HouseBeds -Built 1900-1929

FreeholdCouncil Tax: Band CEPC: E (40)

Data freshness:Planning· 4mo agoOwnership· 1mo agoEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021

37 St Johns Road, Hemel Hempstead, HP1 1QQ

HP Score

/ 100

Strong

Verdict

7 days ago

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

Evidence

20 of 21 sources

Sale Estimate

£390,000

£351k - £429kMedium

Estimate

£390k

Range

£351k – £429k

Rent Estimate (pcm)

£1,700

£2k - £2k

Monthly

£1,700

Yield

4.80%

Verdict

Derived from HomePortfolio scores

37 St Johns Road earns an INVESTIGATE rating with HP Score 81/100. Investment score 65/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is good (74/100). 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 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

81/ 100

Strong

Investment Score

65/ 100

Moderate

Crime Score

13/ 100

Low

Walkability

74/ 100

High

Transit & Bike

Transit 25Bike 51

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 2 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 -9.0% (MEDIUM), sold-comps -8.4%, £/sqft -8.4%] → 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 12 Oct 2026
- valuation_snapshotsestimate for 100080705398· as of 12 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 9 comps, dispersion 12%· as of 12 Oct 2026
Rental economics0/40
gross yield 4.8%; range width penalty ×0.85
- valuation_snapshotsrent estimate 1700/mo (range 1550-1850)· as of 12 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -673/mo, -40% 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 2 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 31 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 2 Nov 2026
Risk & liquidity12.8/15
250 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

£319,000£488,500

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£425,000

At the asking price

Monthly rent£1,700/mo

Evidenced range £1,550-£1,850

Interest rate5.4%

Loan to value75%

Cash required: £140,050
Net cash flow: -£257/mo
Cash on cash: -2.2%
Score at this price: 13

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.19 - 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 100080705398Valuation edge · as of 12 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 9 comps, dispersion 12%Valuation edge · as of 12 Oct 2026
valuation_snapshotsrent estimate 1700/mo (range 1550-1850)Rental economics · as of 12 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 2 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 2 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 1550-1850)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 31 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. 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£390,000

Rent Estimate (pcm)£1,700

Gross Yield4.80%

1y Growth-

3y Growth+0.0%

5y Growth+1.0%

10y Growth+2.9%

Last Sold Price£250,000 (2021-09-22)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonLow
MiningSignificant
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0HP1 1QQ

Approval Rate

-12mo

Development

low

26/02447/ROC
Variation of Condition 2 (Approved Plans) attached to planning permission 25/00549/MFA
Pending
26/02379/ROC
Variation of conditions: 2 (Floodlighting hours of use and floodlighting dimming scheme/system/management plan) and Condition 3 (Lighting Technical Report ) attached to planning permission 4/00174/16/FUL
Pending
26/02383/LDE
A certificate of Lawful Development to Class E
Pending

View Planning Timeline

Ownership

Corporate Ownership52.8%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2021-09-22
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£36,473

Population Density5,693 /km²

Owner Occupied79%

Age Distribution

0-15 18%16-64 62%65+ 20%

View Area Profile

Schools Nearby

St Rose's Catholic Infant School
0.2 mi
Inspected as St Rose's Catholic Infants School (URN 117484) on 4 Jul 2023
Boxmoor Primary School
0.2 mi
Good
The Hemel Hempstead School
0.5 mi
Report card2026
Ofsted no longer awards a single overall grade.
South Hill Primary School
0.5 mi
Good

5 of 10 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

51 St Johns Road
-
£420k
-
43 St Johns Road
-
£500
-
47B St Johns Road
-
£450k
-
25 - 27 St Johns Road
-
£230k
-

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