Flat 11, Barons Court, 21 Whelan Way, Wallington, SM6 7NF

UPRN:5870094249Purpose Built Flat1 bedsBuilt 1991-1995

LeaseholdCouncil Tax: -EPC: C (72)

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

Flat 11, Barons Court, 21 Whelan Way, Wallington, SM6 7NF

HP Score

/ 100

Mixed

Verdict

yesterday

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

Evidence

20 of 21 sources

Sale Estimate

£240,000

£228k - £252kHigh

Estimate

£240k

Range

£228k – £252k

Rent Estimate (pcm)

£1,250

£1k - £1k

Monthly

£1,250

Yield

6.52%

Verdict

Derived from HomePortfolio scores

Flat 11 earns an INVESTIGATE rating with HP Score 70/100. 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 leasehold. 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

70/ 100

Mixed

Investment Score

66/ 100

Moderate

Crime Score

32/ 100

Moderate

Walkability

52/ 100

Moderate

Transit & Bike

Transit 24Bike 58

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesLead to verifyListing checked 5 Nov 2026

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

Check before relying on this score: leasehold with no service charge disclosed - the stress test assumes GBP 0. It ranks after every home whose inputs are verified.

Valuation edge0/15
claims [AVM +4.2% (HIGH)] → 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 13 Oct 2026
- valuation_snapshotsestimate for 5870094249· as of 13 Oct 2026
Rental economics11.7/40
gross yield 6.5%; range width penalty ×0.96
- valuation_snapshotsrent estimate 1250/mo (range 1200-1350)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -182/mo, -15% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); fails the stress - earns nothing; leasehold with no service charge disclosed - the stress assumes GBP 0
- underwriting_assumptionscosts not disclosed by the advert· as of 5 Nov 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 0 price cut(s), 37 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 5 Nov 2026
Risk & liquidity14.6/15
312 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

£172,500£264,500

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£230,000

At the asking price

Monthly rent£1,250/mo

Evidenced range £1,200-£1,350

Interest rate5.4%

Loan to value75%

Cash required: £72,400
Net cash flow: £89/mo
Cash on cash: 1.5%
Score at this price: 26

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.61 - 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 5870094249Valuation edge · as of 13 Oct 2026
valuation_snapshotsrent estimate 1250/mo (range 1200-1350)Rental economics · as of 13 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 5 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 5 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 1200-1350)
Stress margin needs verification before you rely on it
costs not disclosed by the advert

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£240,000

Rent Estimate (pcm)£1,250

Gross Yield6.52%

1y Growth-

3y Growth-0.3%

5y Growth+0.1%

10y Growth+2.3%

Last Sold Price£232,000 (2022-01-28)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningSignificant
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0SM6 7NF

Approval Rate

-12mo

Development

low

DM2026/01197
Conversion of loft space involving alterations to existing roofline and first floor roof extension, a dormer extension at rear, a window to flank roofslope and rooflights to front roofslope.
Pending
26/03000/AUT
Change of use of the existing retail warehouse (Use Class E) to form an Ambulance Hub (Sui Generis), including refurbishment and reconfiguration of the existing building providing replacement cladding, roof and openings, fleet maintenance facilities, staff welfare and office accommodation, ambulance and operational vehicle parking, fuel storage and associated infrastructure, formation of new vehicular accesses, landscaping and all other associated works (Consultation by the London Borough of Sutton).
Pending
DM2026/01171
Erection of an outbuilding.
Pending

View Planning Timeline

Ownership

Corporate Ownership58.1%
Overseas OwnershipNo
Lease Term Remaining151 yrs
CovenantsRestrictive
Lease TypeLeasehold
Last Ownership Change2022-01-28
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

14 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£38,359

Population Density5,463 /km²

Owner Occupied65%

Age Distribution

0-15 23%16-64 66%65+ 11%

View Area Profile

Schools Nearby

Sherwood Foundation School
0.2 mi
Good
Beddington Park Academy
0.2 mi
Outstanding
Beddington Infants' School
0.4 mi
Good
The Link School
0.5 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.

3 of 10 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

Barons Court, 21 Whelan Way
-
£230k
-
Barons Court, 21 Whelan Way
-
£220k
-
Barons Court, 21 Whelan Way
-
£145k
-
Barons Court, 21 Whelan Way
-
£225k
-

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