507 Seddon House, Seddon Highwalk, London, EC2Y 8BX

UPRN:200000074059Flat/Maisonette1 bedsBuilt 1967-1975

Tenure: -Council Tax: Band EEPC: C (74)

Data freshness:Listing· freshPrice Paid· freshEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 1mo agoArea· Census 2021Council Tax· 6mo ago

507 Seddon House, Seddon Highwalk, London, EC2Y 8BX

HP Score

/ 100

Strong

Verdict

yesterday

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

Evidence

17 of 21 sources

Sale Estimate

£810,000

£729k - £891kMedium

Estimate

£810k

Range

£729k – £891k

Rent Estimate (pcm)

£3,150

£3k - £4k

Monthly

£3,150

Yield

3.88%

Verdict

Derived from HomePortfolio scores

507 Seddon House earns an INVESTIGATE rating with HP Score 84/100. Investment score 80/100 reflects strong fundamentals. Crime intensity is moderate. Walkability is excellent (97/100). 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

84/ 100

Strong

Investment Score

80/ 100

High

Crime Score

37/ 100

Elevated

Walkability

97/ 100

Excellent

Transit & Bike

Transit 100Bike 72

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 2 Nov 2026

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

Valuation edge-0.6/15
claims [AVM -20.4% (MEDIUM)] → 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 12 Oct 2026
- valuation_snapshotsestimate for 200000074059· as of 12 Oct 2026
Rental economics0/40
gross yield 3.9%; range width penalty ×0.76
- valuation_snapshotsrent estimate 3150/mo (range 2800-3500)· as of 12 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -2,451/mo, -78% 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 2 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 53 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 2 Nov 2026
Risk & liquidity12.8/15
53 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

£731,000£1,121,000

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£975,000

At the asking price

Monthly rent£3,150/mo

Evidenced range £2,800-£3,500

Interest rate5.4%

Loan to value75%

Cash required: £335,050
Net cash flow: -£1,110/mo
Cash on cash: -4.0%
Score at this price: 12

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.96 - 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 200000074059Valuation edge · as of 12 Oct 2026
valuation_snapshotsrent estimate 3150/mo (range 2800-3500)Rental economics · as of 12 Oct 2026 · verify before relying on this
listing_factsservice charge / ground rent from the advertStress margin · as of 2 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 2 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 3150/mo (range 2800-3500)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 53 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. 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£810,000

Rent Estimate (pcm)£3,150

Gross Yield3.88%

1y Growth+8.0%

3y Growth-1.4%

5y Growth+1.2%

10y Growth-0.3%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

1EC2Y 8BX

Approval Rate

-12mo

Development

low

P2026/2865/COL
Certificate of Lawfulness (Proposed) for remedial works to replace the existing render with a non-combustible system to match the existing colour and appearance to improve the fire safety credentials of the site
Pending
P2026/2846/LBC
Installation of secondary glazing
Pending
P2026/2844/AOD
Approval of details pursuant to condition 8 (Sound Insulation) of planning permission ref:P2026/1703/PRA dated 02/09/2026.
Pending

View Planning Timeline