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Flat B, 420 St John Street, London, EC1V 4NJ

UPRN:10010440712Flat/MaisonetteBeds -Built 1996-2002
Tenure: -Council Tax: Band DEPC: C (76)
Data freshness:Listing· freshListing: fresh, refreshed 2d ago (2026-11-04T04:00:06.345886+00:00)Price Paid· freshPrice Paid: fresh, refreshed 5d ago (2026-11-01T06:55:31.122131+00:00)EPC· 1mo agoEPC: ageing, refreshed 1mo ago (2026-10-01T13:35:10.185313+00:00)Risk· 5mo agoRisk: stale, refreshed 5mo ago (2026-06-18T00:00:00+00:00)Connectivity· 1mo agoConnectivity: ageing, refreshed 1mo ago (2026-10-03T06:43:10.905825+00:00)Schools· 1mo agoSchools: ageing, refreshed 1mo ago (2026-10-06T08:24:30.427161+00:00)Amenities· 1mo agoAmenities: ageing, refreshed 1mo ago (2026-09-23T00:00:00+00:00)Area· Census 2021Area: static reference data (Census 2021); authoritative and does not refreshCouncil Tax· 6mo agoCouncil Tax: stale, refreshed 6mo ago (2026-05-20T09:33:12.870431+00:00)
Flat B, 420 St John Street, London, EC1V 4NJ

HP Score

Mixed
Verdict
2 days ago
  • Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.

    Mixed signals - investigate

Evidence
19 of 21 sources
Sale Estimate
£704,000
£563k - £845kLow
Estimate
£704k
Range
£563k – £845k
Rent Estimate (pcm)
£3,100
£3k - £3k
Monthly
£3,100
Yield
5.28%

Verdict

Derived from HomePortfolio scores

Flat B earns an INVESTIGATE rating with HP Score 68/100. Investment score 71/100 reflects strong fundamentals. Crime intensity is elevated. Walkability is excellent (99/100). 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
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HP Score
68/ 100
Mixed
Investment Score
71/ 100
High
Crime Score
79/ 100
Elevated
Walkability
99/ 100
Excellent
Transit & Bike
Transit 100Bike 77
Walk Score, out of 100

Valuation & Market

Sale Estimate£704,000
Rent Estimate (pcm)£3,100
Gross Yield5.28%
1y Growth-
3y Growth-8.2%
5y Growth-5.1%
10y Growth-1.1%
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
1EC1V 4NJ
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
  • P2026/2857/FUL
    Proposed window replacement. Removal of existing first floor rear extension. Extension and changes to the existing ground floor rear extension. New kitchen, bathroom and ensuite. Addition of internal insulated wall lining, solar roof panels, ASHP & battery [Listed Building Consent reference: P2026/2856/LBC also submitted].
    Pending
  • P2026/2856/LBC
    Proposed window replacement. Removal of existing first floor rear extension. Extension and changes to the existing ground floor rear extension. New kitchen, bathroom and ensuite. Addition of internal insulated wall lining, solar roof panels, ASHP & battery [Full planning application reference P2026/2857/FUL also submitted].
    Pending
View Planning Timeline

Ownership

  • Corporate Ownership21.8%
  • Overseas OwnershipNo
  • Lease Term Remaining-
  • CovenantsRestrictive
  • Lease Type-
  • Last Ownership Change-
  • SourceLand Registry
View Ownership Details

Connectivity

Broadband (Standard)
17 Mbps
Mobile 4G/5G Coverage
EEThreeO2Vodafone
EV Charger
-
PTAL Rating
-
View Connectivity Map

Area Profile

Median EarningsLocal authority£47,411
Population Density15,328 /km²
Owner Occupied18%
Age Distribution
0-15 13%16-64 78%65+ 9%
View Area Profile

Schools Nearby

  • St John Evangelist Catholic Primary School
    0.2 mi
    Good
  • Elizabeth Garrett Anderson School
    0.2 mi
    Area grades2025

    Inspected after Ofsted withdrew the single overall grade.

  • The Gower School
    0.3 mi
    Inspected by ISI
  • The Pears Family School
    0.3 mi
    Outstanding

1 of 8 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All
  • 426 St John Street
    -
    £30k
    -
  • 428 St John Street
    -
    £22k
    -
  • 396 St John Street
    -
    £1.19M
    -
  • 424A St John Street
    -
    £832k
    -