346 Summerwood Road, Isleworth, TW7 7QP

UPRN:100021574119Purpose Built Flat3 bedsBuilt 1991-1995

LeaseholdCouncil Tax: Band CEPC: B (82)

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

HP Score

/ 100

Mixed

Verdict

yesterday

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

Evidence

18 of 21 sources

Sale Estimate

£279,000

£251k - £307kMedium

Estimate

£279k

Range

£251k – £307k

Rent Estimate (pcm)

£1,250

£1k - £1k

Monthly

£1,250

Yield

5.08%

Verdict

Derived from HomePortfolio scores

346 Summerwood Road earns an INVESTIGATE rating with HP Score 70/100. Investment score 69/100 reflects moderate fundamentals. Crime intensity is moderate. Walkability is good (76/100). 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 listingsMarket 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

70/ 100

Mixed

Investment Score

69/ 100

Moderate

Crime Score

54/ 100

Elevated

Walkability

76/ 100

High

Transit & Bike

Transit 70Bike 69

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 11 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 -5.7% (MEDIUM)] → 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 10 Nov 2026
- valuation_snapshotsestimate for 100021574119· as of 10 Nov 2026
Rental economics0.6/40
gross yield 5.1%; range width penalty ×0.88
- valuation_snapshotsrent estimate 1250/mo (range 1150-1350)· as of 10 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -457/mo, -37% of rent (6.75% on a 75% loan; disclosed service charge and ground rent); fails the stress - earns nothing
- listing_factsservice charge / ground rent from the advert· as of 11 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 56 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 & liquidity12.8/15
267 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

£221,000£339,000

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£295,000

At the asking price

Monthly rent£1,250/mo

Evidenced range £1,150-£1,350

Interest rate5.4%

Loan to value75%

Cash required: £94,550
Net cash flow: -£130/mo
Cash on cash: -1.7%
Score at this price: 13

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.26 - 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 100021574119Valuation edge · as of 10 Nov 2026
valuation_snapshotsrent estimate 1250/mo (range 1150-1350)Rental economics · as of 10 Nov 2026 · verify before relying on this
listing_factsservice charge / ground rent from the advertStress margin · as of 11 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 11 Nov 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 1250/mo (range 1150-1350)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 56 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£279,000

Rent Estimate (pcm)£1,250

Gross Yield5.08%

1y Growth-

3y Growth-0.6%

5y Growth+0.2%

10y Growth+1.2%

Last Sold Price£182,500 (2010-11-19)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0TW7 7QP

Approval Rate

-12mo

Development

low

PA26/3769
T1 & T2: Olives - Crown reduce the height by 30% (approx. 2.5m) Crown reduce the spread to balance and shape ensuring to retain green foliage (approx. 2.0m) T3: Magnolia grandiflora - Crown reduce the height and spread by approx. 20% (approx. 2.0m height and 1.5m spread) Crown thin by by 10% and remove dead wood Maintenance works in line with good arboricultural practice
Pending
PA26/3760
Installation of 2 x external AC condensing units to side elevation of property. Installation of glazed roof pergola to rear elevation of property.
Pending
PA26/3758
T1 Eucalyptus tree to selectively thin removing heavier limbs to relieve canopy of weight to remove all dead wood and to lift lower canopy to a standing height of 10ft, start size 12mx7m finish 11mx6m T2 Eucalyptus tree to selectively thin by 30%and lift lower canopy to a standing height of 10ft, start size 7mx5m finish 6mx4m
Pending

View Planning Timeline