21 Windrush, New Malden, KT3 3TG

UPRN:128020751Semi-Detached House4 bedsBuilt 1983-1990

FreeholdCouncil Tax: Band FEPC: B (81)

Data freshness:Listing· freshPrice Paid· freshEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoAmenities· 1mo agoArea· Census 2021

HP Score

/ 100

Strong

Verdict

2 days ago

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

Evidence

18 of 21 sources

Sale Estimate

£696,000

£661k - £730kHigh

Estimate

£696k

Range

£661k – £730k

Rent Estimate (pcm)

£2,850

£3k - £3k

Monthly

£2,850

Yield

4.99%

Verdict

Derived from HomePortfolio scores

21 Windrush earns an INVESTIGATE rating with HP Score 82/100. Investment score 86/100 reflects strong fundamentals. Crime intensity is low. Walkability is good (77/100). 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

82/ 100

Strong

Investment Score

86/ 100

Excellent

Crime Score

22/ 100

Moderate

Walkability

77/ 100

High

Transit & Bike

Transit 26Bike 69

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceListing checked 2 Nov 2026

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

Valuation edge2.5/15
claims [AVM +1.6% (HIGH), sold-comps +13.0%, £/sqft +12.9%] → measured edge +0.50pp 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 Oct 2026
- valuation_snapshotsestimate for 128020751· as of 9 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 20.9%· as of 20 Oct 2026
Rental economics0/40
gross yield 5.0%; range width penalty ×0.85
- valuation_snapshotsrent estimate 2850/mo (range 2600-3100)· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -925/mo, -32% 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 2 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 24 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 2 Nov 2026
Risk & liquidity14.7/15
286 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

£514,000£787,500

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£685,000

At the asking price

Monthly rent£2,850/mo

Evidenced range £2,600-£3,100

Interest rate5.4%

Loan to value75%

Cash required: £231,050
Net cash flow: -£339/mo
Cash on cash: -1.8%
Score at this price: 17

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.23 - 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 128020751Valuation edge · as of 9 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 20.9%Valuation edge · as of 20 Oct 2026
valuation_snapshotsrent estimate 2850/mo (range 2600-3100)Rental economics · as of 9 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 2 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 2 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 2850/mo (range 2600-3100)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 24 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£696,000

Rent Estimate (pcm)£2,850

Gross Yield4.99%

1y Growth-

3y Growth+4.9%

5y Growth+2.2%

10y Growth+2.1%

Last Sold Price£280,000 (2004-12-21)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

1KT3 3TG

Approval Rate

100%12mo

Development

low

26/02173/CPU
Erection of hip-to-gable and rear dormer roof extension with installation of 3nos. front rooflights to facilitate loft conversion
Pending
26/02160/HOU
Removal of shed and erection of single storey outbuilding to rear
Pending
26/02157/CPUF
Demolition of an existing side garage and erection of a single storey side extension.
Pending

View Planning Timeline

Ownership

Corporate Ownership58.8%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2004-12-21
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

7 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£41,833

Population Density8,876 /km²

Owner Occupied31%

Age Distribution

0-15 21%16-64 70%65+ 9%

View Area Profile

Schools Nearby

King's Oak Primary School
0.2 mi
Good
Corpus Christi Catholic Primary School
0.4 mi
Inspected as Corpus Christi Catholic Primary School (URN 102594) on 22 Oct 2024
Christ Church New Malden CofE Primary School
0.5 mi
Good
Westbury House School
0.7 mi
Inspected by ISI

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

View All Schools

Comparables

View All

41 Windrush
-
£528k
-
7 Windrush
-
£540k
-
25 Windrush
-
£567k
-
23 Windrush
-
£515k
-

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