21 Walham Grove, London, SW6 1QP

UPRN:34070914Mid Terrace House4 bedsBuilt 1900-1929

FreeholdCouncil Tax: Band GEPC: D (66)

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

HP Score

/ 100

Mixed

Verdict

4 days ago

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

Evidence

20 of 21 sources

Sale Estimate

£2,029,000

£1.93M - £2.13MHigh

Estimate

£2.03M

Range

£1.93M – £2.13M

Rent Estimate (pcm)

£8,550

£8k - £9k

Monthly

£8,550

Yield

3.16%

Verdict

Derived from HomePortfolio scores

21 Walham Grove earns an INVESTIGATE rating with HP Score 69/100. Investment score 67/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (88/100). 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 company ownershipHM Land Registry covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

69/ 100

Mixed

Investment Score

67/ 100

Moderate

Crime Score

70/ 100

Elevated

Walkability

88/ 100

Excellent

Transit & Bike

Transit 68Bike 72

Walk Score, out of 100

Opportunity

Not scored as an opportunity

We will not put a number on this one.

3 live adverts with different prices, types or bedrooms on one UPRN (£3,250,000) - several homes collapsed onto one address, so the UPRN's valuation describes none of them

Withholding a score is deliberate. A number built on missing or stale inputs would look more certain than the evidence allows.

Economics

What happens to your money

Your assumptions

Purchase price£3,250,000

At the asking price

Monthly rent£8,550/mo

Evidenced range £7,800-£9,300

Interest rate5.4%

Loan to value75%

Cash required: £1,280,050
Net cash flow: -£5,050/mo
Cash on cash: -4.7%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.78 - below the usual 1.25 test. These are your assumptions, not evidence: only the pre-filled rent and price come from the record.

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion

Property risk deep-dive →flood, subsidence, crime, environment - the full domain

Plan

Before you offer

1. 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£2,029,000

Rent Estimate (pcm)£8,550

Gross Yield3.16%

1y Growth-

3y Growth-5.0%

5y Growth-1.5%

10y Growth-1.2%

Last Sold Price£1,925,000 (2023-01-16)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

1SW6 1QP

Approval Rate

-12mo

Development

low

P/2026/02810/FUL
Replacement of existing roof covering (comprising of main roof, roof of rear back addition and roof of front porch) with new roof coverings; replacement of existing single glazed timber framed front entrance door with new double glazed uPVC framed entrance door; replacement of existing single glazed timber framed windows with new double glazed uPVC framed windows to the rear and side elevations; replacement of fascias, soffits and rainwater goods with new.
Pending
P/2026/02807/CLP
Erection of a rear roof extension; installation of 3no rooflights in the front roofslope, 1no rooflight above the main flat roof at roof level and 1no rooflight above the roof of second floor rear back addition.
Pending
P/2026/02797/ADV
Display of non-illuminated painted mural to the west facing elevation (Wansdown Place) of the host building.
Pending

View Planning Timeline