20 Newton Road, Isleworth, TW7 6QD

UPRN:100021571175Mid Terrace House4 bedsBuilt 1900-1929

FreeholdCouncil Tax: Band DEPC: C (79)

Data freshness:Listing· freshPlanning· 4mo agoEPC· 2mo agoRisk· 2y agoAmenities· 1mo agoArea· Census 2021

HP Score

/ 100

Mixed

Verdict

4 days ago

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

Evidence

18 of 21 sources

Sale Estimate

£747,000

£709k - £784kHigh

Estimate

£747k

Range

£709k – £784k

Rent Estimate (pcm)

£3,400

£3k - £4k

Monthly

£3,400

Yield

4.95%

Verdict

Derived from HomePortfolio scores

20 Newton Road earns an INVESTIGATE rating with HP Score 68/100. Investment score 60/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is limited (15/100). 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

68/ 100

Mixed

Investment Score

60/ 100

Moderate

Crime Score

12/ 100

Low

Walkability

15/ 100

Low

Transit & Bike

Transit 51Bike 55

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 21 Oct 2026

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

Valuation edge-1.6/15
claims [AVM -10.4% (HIGH)] → measured edge -0.33pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp; asking more than 10% above the estimate (measured -0.33pp)
Market estimate used (HIGH confidence) · snapshot 13 Oct 2026
- valuation_snapshotsestimate for 100021571175· as of 13 Oct 2026
Rental economics0/40
gross yield 4.9%; range width penalty ×0.88
- valuation_snapshotsrent estimate 3400/mo (range 3100-3650)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,111/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 21 Oct 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 59 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 21 Oct 2026
Risk & liquidity14.6/15
268 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

£619,000£948,500

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£825,000

At the asking price

Monthly rent£3,400/mo

Evidenced range £3,100-£3,650

Interest rate5.4%

Loan to value75%

Cash required: £280,050
Net cash flow: -£431/mo
Cash on cash: -1.8%
Score at this price: 13

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.22 - 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 100021571175Valuation edge · as of 13 Oct 2026
valuation_snapshotsrent estimate 3400/mo (range 3100-3650)Rental economics · as of 13 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 21 Oct 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 21 Oct 2026
property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth

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 3400/mo (range 3100-3650)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 59 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£747,000

Rent Estimate (pcm)£3,400

Gross Yield4.95%

1y Growth-

3y Growth-0.6%

5y Growth+0.0%

10y Growth+1.2%

Last Sold Price£727,000 (2018-01-10)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0TW7 6QD

Approval Rate

-12mo

Development

low

P/2026/2974
Retrospective application for the installation of gas pipework to the east, west and south elevations of Suffolk Lodge.
Pending
P/2026/2971
Details of Condition 3 (Vehicle Tracking and Junction Geometry), submitted pursuant to permission P/2026/1294 dated 08/09/2026 for Prior Approval for Installation of external bollards, enlargement of the existing cycle storage and relocation of approved car parking for the development of planning permission P/2022/2424.
Pending
P/2026/2928
Certificate of lawfulness for the proposed roof alterations comprising of new battens, underlay, re-roofing, leadwork and ridge tiles.
Pending

View Planning Timeline