399 Louth Road, New Waltham, Grimsby, DN36 4SA

UPRN:11089357Detached House4 bedsBuilt -

FreeholdCouncil Tax: Band EEPC: C (78)

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

399 Louth Road, New Waltham, Grimsby, DN36 4SA

HP Score

/ 100

Mixed

Verdict

3 days ago

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

Evidence

19 of 21 sources

Sale Estimate

£705,000

£634k - £775kMedium

Estimate

£705k

Range

£634k – £775k

Rent Estimate (pcm)

£2,950

£3k - £3k

Monthly

£2,950

Yield

4.72%

Verdict

Derived from HomePortfolio scores

399 Louth Road earns an INVESTIGATE rating with HP Score 69/100. Investment score 57/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is limited (27/100). 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 Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

69/ 100

Mixed

Investment Score

57/ 100

Moderate

Crime Score

11/ 100

Low

Walkability

27/ 100

Low

Transit & Bike

Transit 13Bike 50

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 30 Oct 2026

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

Valuation edge0/15
claims [AVM -6.4% (MEDIUM), sold-comps -131.5%, £/sqft -131.6%] → 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 (MEDIUM confidence) · snapshot 9 Oct 2026
- valuation_snapshotsestimate for 11089357· as of 9 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 11.1%· as of 21 Oct 2026
Rental economics0/40
gross yield 4.7%; range width penalty ×0.83
- valuation_snapshotsrent estimate 2950/mo (range 2700-3250)· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,126/mo, -38% 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 30 Oct 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 482 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 30 Oct 2026
Risk & liquidity12.8/15
226 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

£562,500£862,500

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£750,000

At the asking price

Monthly rent£2,950/mo

Evidenced range £2,700-£3,250

Interest rate5.4%

Loan to value75%

Cash required: £253,800
Net cash flow: -£489/mo
Cash on cash: -2.3%
Score at this price: 13

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.17 - 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 11089357Valuation edge · as of 9 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 11.1%Valuation edge · as of 21 Oct 2026
valuation_snapshotsrent estimate 2950/mo (range 2700-3250)Rental economics · as of 9 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 30 Oct 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 30 Oct 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 2950/mo (range 2700-3250)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 482 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£705,000

Rent Estimate (pcm)£2,950

Gross Yield4.72%

1y Growth-

3y Growth-0.4%

5y Growth+1.0%

10y Growth+3.4%

Last Sold Price£130,000 (2018-06-07)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceModerate
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0DN36 4SA

Approval Rate

-12mo

Development

low

DM/0751/26/FULA
Erect two storey extension to front and alterations to the existing roof line to form bedroom at first floor including the installation of a dormer to front
Pending
DM/0668/26/FUL
Erection of detached outbuilding for use as domestic storage, garage and hobby woodworking space within front garden with associated works.
Conditions
DM/0666/26/FUL
Demolish existing conservatory and erect ground floor extension to rear. Remove existing porch and erect a porch to the front and a ground floor extension to front. Removal of gabled roof, mono pitched roof and bay window to the front. Removal of hipped roof to side. Roof raise with first floor extensions to front, side and rear and windows at first floor to front, side and rear with various associated works - Amended description September 2026
Conditions

View Planning Timeline