17 Windmill Heights, Billericay, CM12 9QY

UPRN:100090282398Semi-Detached House3 bedsBuilt 1983-1990

FreeholdCouncil Tax: Band DEPC: C (69)

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

17 Windmill Heights, Billericay, CM12 9QY

HP Score

/ 100

Mixed

Verdict

today

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Mixed signals - investigate

Evidence

18 of 21 sources

Sale Estimate

£448,000

£425k - £470kHigh

Estimate

£448k

Range

£425k – £470k

Rent Estimate (pcm)

£1,800

£2k - £2k

Monthly

£1,800

Yield

5.08%

Verdict

Derived from HomePortfolio scores

17 Windmill Heights earns an INVESTIGATE rating with HP Score 73/100. Investment score 66/100 reflects moderate fundamentals. Crime intensity is low. Walkability is limited (52/100). 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 covenantsHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

73/ 100

Mixed

Investment Score

66/ 100

Moderate

Crime Score

19/ 100

Moderate

Walkability

52/ 100

Moderate

Transit & Bike

Transit 9Bike 33

Walk Score, out of 100

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 +5.1% (HIGH), sold-comps -5.7%, £/sqft -5.6%] → 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 Nov 2026
- valuation_snapshotsestimate for 100090282398· as of 9 Nov 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 23.6%· as of 7 Nov 2026
Rental economics0.6/40
gross yield 5.1%; range width penalty ×0.87
- valuation_snapshotsrent estimate 1800/mo (range 1650-1950)· as of 9 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -600/mo, -33% 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
context, not scored: 0 price cut(s), 83 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
253 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

£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£1,800/mo

Evidenced range £1,650-£1,950

Interest rate5.4%

Loan to value75%

Cash required: £140,050
Net cash flow: -£188/mo
Cash on cash: -1.6%
Score at this price: 15

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.25 - 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 100090282398Valuation edge · as of 9 Nov 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 23.6%Valuation edge · as of 7 Nov 2026
valuation_snapshotsrent estimate 1800/mo (range 1650-1950)Rental economics · as of 9 Nov 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 6 Nov 2026
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 1800/mo (range 1650-1950)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 83 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. 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£448,000

Rent Estimate (pcm)£1,800

Gross Yield5.08%

1y Growth+11.0%

3y Growth+2.1%

5y Growth+0.2%

10y Growth+2.4%

Last Sold Price£387,500 (2024-07-24)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

1CM12 9QY

Approval Rate

100%12mo

Development

low

26/00029/S211
Section 211 - T10 Horse Chestnut: Large cavity on south side at 1.5m with extensive hollowing and decay through the cross section of the stem. Decay on the east and north side of the base (root collar) with evidence of bootlaces indicating presence of honey fungus. Extensive die back and deadwood throughout the crown - Fell tree due to high target location and probability of failure.
Pending
26/01181/LDCP
To establish the lawfulness of use of ground floor and 2 basement rooms as Class E.
Pending
26/01142/LDCP
To establish the lawfulness of the proposed conversion and incorporation of the existing side outbuilding/store into the main dwellinghouse, including associated alterations to the existing external walls, openings and roof form, together with the formation of a loft conversion comprising a rear dormer extension and rooflights to the front roof slope. The proposed front rooflights will be installed flush or near flush with the existing roof slope.
Pending

View Planning Timeline