27 Millstone Way, Harpenden, AL5 5FE

UPRN:10093185564Purpose Built Flat2 bedsBuilt -

LeaseholdCouncil Tax: Band CEPC: B (82)

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

HP Score

/ 100

Strong

Verdict

2 days ago

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

Evidence

19 of 21 sources

Sale Estimate

£324,000

£308k - £341kHigh

Estimate

£324k

Range

£308k – £341k

Rent Estimate (pcm)

£1,450

£1k - £2k

Monthly

£1,450

Yield

5.35%

Verdict

Derived from HomePortfolio scores

27 Millstone Way earns an INVESTIGATE rating with HP Score 78/100. Investment score 70/100 reflects strong fundamentals. Crime intensity is low. Walkability is limited (64/100). 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 NationsMarket 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

78/ 100

Strong

Investment Score

70/ 100

High

Crime Score

20/ 100

Moderate

Walkability

64/ 100

Moderate

Transit & Bike

Transit 28Bike 54

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 -0.3% (HIGH), sold-comps -6.6%, £/sqft -6.7%] → 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 Nov 2026
- valuation_snapshotsestimate for 10093185564· as of 9 Nov 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 5.8%· as of 1 Nov 2026
Rental economics2.4/40
gross yield 5.4%; range width penalty ×0.86
- valuation_snapshotsrent estimate 1450/mo (range 1300-1550)· as of 9 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -435/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), 53 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

£244,000£374,000

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£325,000

At the asking price

Monthly rent£1,450/mo

Evidenced range £1,300-£1,550

Interest rate5.4%

Loan to value75%

Cash required: £105,050
Net cash flow: -£93/mo
Cash on cash: -1.1%
Score at this price: 17

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.32 - 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 10093185564Valuation edge · as of 9 Nov 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 5.8%Valuation edge · as of 1 Nov 2026
valuation_snapshotsrent estimate 1450/mo (range 1300-1550)Rental economics · as of 9 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

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 1300-1550)
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£324,000

Rent Estimate (pcm)£1,450

Gross Yield5.35%

1y Growth+3.1%

3y Growth-1.1%

5y Growth+2.0%

10y Growth+2.8%

Last Sold Price£340,000 (2016-11-18)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonModerate
MiningSignificant
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0AL5 5FE

Approval Rate

-12mo

Development

low

26/0566/TCA
Remove 30ft cherry tree The approximately 30ft Cherry tree is exhibiting signs of declining vitality, evidenced by a notably sparse canopy during the current growing season. The tree has also developed a pronounced lean towards the client's property, raising concerns regarding its structural condition and potential for failure. In view of its apparent decline, increasing lean and close proximity to the dwelling, removal is considered appropriate to mitigate potential risk and address the tree's deteriorating condition.
Pending
26/1954/PAHSE
Prior approval - Single storey rear extension with 3.47m in height x 3m in depth with 2.58m height to eaves
Pending
26/1856/HSE
Erection of a single storey side extension
Pending

View Planning Timeline

Ownership

Corporate Ownership55%
Overseas OwnershipNo
Lease Term Remaining113 yrs
CovenantsRestrictive
Lease TypeLeasehold
Last Ownership Change2016-11-18
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

9 Mbps

Mobile 4G/5G Coverage

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£45,543

Population Density3,853 /km²

Owner Occupied79%

Age Distribution

0-15 23%16-64 63%65+ 14%

View Area Profile

Schools Nearby

Manland Primary School
0.3 mi
GoodImproving
Sir John Lawes School
0.3 mi
Outstanding
Batford Nursery School
0.3 mi
Outstanding
Sauncey Wood Primary School
0.3 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.

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

View All Schools

Comparables

View All

10 Millstone Way
-
£324k
-
33 Millstone Way
-
£300k
-
16 Millstone Way
-
£320k
-
46 Millstone Way
-
£340k
-

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