Flat 5, 118 Thurlow Park Road, London, SE21 8HP

UPRN:100021901434Converted Flat1 bedsBuilt 1900-1929

Tenure: -Council Tax: Band CEPC: D (57)

Data freshness:Listing· freshPlanning· 3mo agoOwnership· freshEPC· 6mo agoRisk· 5mo agoCrime· freshConnectivity· 1mo agoSchools· freshAmenities· 2mo agoArea· Census 2021Council Tax· 1mo ago

Flat 5, 118 Thurlow Park Road, London, SE21 8HP

HP Score

/ 100

Strong

Verdict

today

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

Evidence

19 of 21 sources

Sale Estimate

£413,000

£372k - £454kMedium

Estimate

£413k

Range

£372k – £454k

Rent Estimate (pcm)

£1,950

£2k - £2k

Monthly

£1,950

Yield

4.93%

Verdict

Derived from HomePortfolio scores

Flat 5 earns an INVESTIGATE rating with HP Score 83/100. Investment score 72/100 reflects strong fundamentals. Crime intensity is low. Walkability is excellent (87/100). 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

83/ 100

Strong

Investment Score

72/ 100

High

Crime Score

18/ 100

Moderate

Walkability

87/ 100

Excellent

Transit & Bike

Transit 44Bike 73

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesLead to verifyListing checked 11 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 edge-0.6/15
claims [AVM -15.0% (MEDIUM), sold-comps -63.8%, £/sqft -63.6%] → measured edge -0.12pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp; asking more than 10% above the estimate (measured -0.33pp)
Market estimate used (MEDIUM confidence) · snapshot 13 Oct 2026
- valuation_snapshotsestimate for 100021901434· as of 13 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 13.7%· as of 6 Nov 2026
Rental economics0/40
gross yield 4.9%; range width penalty ×0.89
- valuation_snapshotsrent estimate 1950/mo (range 1800-2100)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -701/mo, -36% 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 11 Nov 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 1 price cut(s), 155 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 11 Nov 2026
Risk & liquidity12.9/15
118 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

£356,000£546,000

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£475,000

At the asking price

Monthly rent£1,950/mo

Evidenced range £1,800-£2,100

Interest rate5.4%

Loan to value75%

Cash required: £157,550
Net cash flow: -£253/mo
Cash on cash: -1.9%
Score at this price: 12

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.22 - 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 100021901434Valuation edge · as of 13 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 13.7%Valuation edge · as of 6 Nov 2026
valuation_snapshotsrent estimate 1950/mo (range 1800-2100)Rental economics · as of 13 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 11 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 11 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 1950/mo (range 1800-2100)
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. Ask the agent why the price was reduced and whether a previous sale fell through.
1 price cut(s) recorded on the listing history.
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£413,000

Rent Estimate (pcm)£1,950

Gross Yield4.93%

1y Growth-

3y Growth+4.6%

5y Growth+3.9%

10y Growth+2.8%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningModerate
LandslideLow
Air QualityLow
NoiseHigh

View Full Risk Report

Planning Activity

Recent Apps

2SE21 8HP

Approval Rate

0%12mo

Development

low

26/AP/3229
T1 Sycamore - reduce the crown by 3m from 21m to 18m in height and by 3m from 18m to 15m in crown spread, and remove ivy. T2 Sycamore - reduce the crown by 4m from 23m to 19m in height and by 3m from 15m to 12m in crown spread, and remove ivy. T3 Oak - reduce the crown by 3m from 25m to 22m in height and by 2m from 12m to 10m in crown spread. T4 Ash - reduce the crown by 4m from 25m to 21m in height and by 4m from 15m to 11m in crown spread.
Pending
26/AP/3219
Alterations and extensions to the existing dwelling, including single- and two-storey side and rear extensions, conversion of the existing garage, a new covered entrance porch, roof alterations including a hip-to-gable conversion and rear rooflights, internal reconfiguration, replacement of fenestration and associated works.
Pending
26/03203/TCA
T1 Silver Birch - Fruiting body at the base and evidence of dieback at top of canopy. To carefully section fell as close to ground level as possible. Stump Grinding - To grind out stump to 300mm below ground level in preparation for replacement planting, backfilling hole with arising removing surplus from site in preparation for new planting.
Pending

View Planning Timeline