Flat 12, 24 Welmar Mews, London, SW4 7DD

UPRN:10093379283Flat/Maisonette2 bedsBuilt -

Tenure: -Council Tax: -EPC: C (70)

Data freshness:Listing· freshPlanning· 1mo agoEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· freshAmenities· 2mo agoArea· Census 2021

Flat 12, 24 Welmar Mews, London, SW4 7DD

HP Score

/ 100

Strong

Verdict

3 days ago

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

Evidence

19 of 21 sources

Sale Estimate

£638,000

£574k - £702kMedium

Estimate

£638k

Range

£574k – £702k

Rent Estimate (pcm)

£3,000

£3k - £3k

Monthly

£3,000

Yield

6.00%

Verdict

Derived from HomePortfolio scores

Flat 12 earns an INVESTIGATE rating with HP Score 80/100. Investment score 70/100 reflects strong fundamentals. Crime intensity is low. Walkability is excellent (92/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. 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)Defra 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

80/ 100

Strong

Investment Score

70/ 100

High

Crime Score

33/ 100

Moderate

Walkability

92/ 100

Excellent

Transit & Bike

Transit 61Bike 68

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceListing checked 5 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 +6.0% (MEDIUM), sold-comps +22.5%, £/sqft +22.5%] → 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 (MEDIUM confidence) · snapshot 9 Oct 2026
- valuation_snapshotsestimate for 10093379283· as of 9 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 16.3%· as of 28 Oct 2026
Rental economics7.2/40
gross yield 6.0%; range width penalty ×0.90
- valuation_snapshotsrent estimate 3000/mo (range 2800-3250)· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -533/mo, -18% 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 5 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 33 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 & liquidity12.8/15
349 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

£450,000£690,000

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£600,000

At the asking price

Monthly rent£3,000/mo

Evidenced range £2,800-£3,250

Interest rate5.4%

Loan to value75%

Cash required: £201,300
Net cash flow: £52/mo
Cash on cash: 0.3%
Score at this price: 22

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.48 - 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 10093379283Valuation edge · as of 9 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 16.3%Valuation edge · as of 28 Oct 2026
valuation_snapshotsrent estimate 3000/mo (range 2800-3250)Rental economics · as of 9 Oct 2026 · verify before relying on this
listing_factsservice charge / ground rent from the advertStress margin · as of 5 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 5 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 3000/mo (range 2800-3250)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 33 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£638,000

Rent Estimate (pcm)£3,000

Gross Yield6.00%

1y Growth+23.6%

3y Growth-1.1%

5y Growth-1.4%

10y Growth-0.3%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseHigh

View Full Risk Report

Planning Activity

Recent Apps

1SW4 7DD

Approval Rate

-12mo

Development

low

26/03260/TCA
Rear Garden T1 - Black Poplar Fell to height of chain fence ? T1 is of poor shape, form and is of low amenity value. ? It is a large dominant tree in close proximity to the building. ? The tree is dead The long term future for the tee is questionable due to its location and future growth requirements.
Pending
26/03237/DET
Approval of details pursuant to Condition 3 (Method of construction and demolition statement) of planning permission 22/03218/FUL (Demolition of the existing buildings on site and redevelopment to provide 6 No. residential units with ancillary cycle and refuse storage, landscaping and boundary treatment.) granted on 15.07.2024
Pending
26/03202/RG3
Replacement of windows and doors, the replacement of roof finishings, new insulation and replacement of light wells in main roof.
Pending

View Planning Timeline

Ownership

Corporate Ownership56.9%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease Type-
Last Ownership Change-
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

8 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£43,666

Population Density12,286 /km²

Owner Occupied31%

Age Distribution

0-15 11%16-64 81%65+ 8%

View Area Profile

Schools Nearby

St Mary's Roman Catholic Primary School
0.2 mi
Area grades2024
Inspected after Ofsted withdrew the single overall grade.
South Bank Colleges
0.3 mi
-
Harris Clapham Sixth Form
0.3 mi
-
Clapham Manor Primary School
0.3 mi
Good

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

View All Schools

Comparables

View All

17 Welmar Mews
-
£720k
-
15A Welmar Mews
-
£540k
-
24 Welmar Mews
-
£625k
-
14 Welmar Mews
-
£1.13M
-

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