20 Yvon House, Alexandra Avenue, London, SW11 4GA

UPRN:10070244820Purpose Built Flat1 bedsBuilt -

LeaseholdCouncil Tax: Band DEPC: -

Data freshness:Listing· freshOwnership· freshRisk· 5mo agoCrime· freshConnectivity· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 6mo ago

20 Yvon House, Alexandra Avenue, London, SW11 4GA

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

£435,000

£348k - £522kLow

Estimate

£435k

Range

£348k – £522k

Rent Estimate (pcm)

£2,050

£2k - £2k

Monthly

£2,050

Yield

3.94%

Verdict

Derived from HomePortfolio scores

20 Yvon House earns an INVESTIGATE rating with HP Score 74/100. Investment score 59/100 reflects moderate fundamentals. Crime intensity is moderate. Walkability is excellent (94/100). 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 SourcesPortal 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

74/ 100

Mixed

Investment Score

59/ 100

Moderate

Crime Score

47/ 100

Elevated

Walkability

94/ 100

Excellent

Transit & Bike

Transit 31Bike 79

Walk Score, out of 100

Opportunity

Not scored as an opportunity

We will not put a number on this one.

headline score requires valuation_edge (estimate confidence LOW below scoring floor)

What we could establish

Rental economics0/40
gross yield 3.9%; range width penalty ×0.91
- valuation_snapshotsrent estimate 2050/mo (range 1900-2200)· as of 10 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,260/mo, -61% 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 14 Nov 2026· verify before relying on this
Risk & liquidity9.2/15
774 sales/12mo in area; valuation range width 40%
- property_intelligencetransactions_12mo

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£625,000

At the asking price

Monthly rent£2,050/mo

Evidenced range £1,900-£2,200

Interest rate5.4%

Loan to value75%

Cash required: £210,050
Net cash flow: -£690/mo
Cash on cash: -3.9%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.97 - 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_snapshotsrent estimate 2050/mo (range 1900-2200)Rental economics · as of 10 Nov 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 14 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 14 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
Valuation edge could not be scored
estimate confidence LOW below scoring floor
Rental economics needs verification before you rely on it
rent estimate 2050/mo (range 1900-2200)

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. Fill the valuation edge gap before relying on the score.
estimate confidence LOW below scoring floor
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£435,000

Rent Estimate (pcm)£2,050

Gross Yield3.94%

1y Growth-

3y Growth-4.7%

5y Growth-0.1%

10y Growth-0.5%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

1SW11 4GA

Approval Rate

0%12mo

Development

low

PA2026/0833
Rear T1 Apple x 1 (Malus) This 6m mature apple tree has been reduced previously, but not for a few years and it has now outgrown its location. Its cyclical prune is due, Suggested work: - crown reduction - reduce the height 2.5m back to previous reduction points - reduce the lateral growth 1m to shape - thin by 15%
Pending
PA2026/0812
Installation of fixed line broadband electronic communications apparatus as 12m wooded pole.
Pending
PA2026/0722
Rear garden: To re-pollard reducing to previous reduction points. Remove basal growth
Approved

View Planning Timeline