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Basement Flat, 35 Portnall Road, London, W9 3BA

UPRN:10033541540Flat/MaisonetteBeds -Built 1900-1929
Tenure: -Council Tax: -EPC: C (70)
Data freshness:Listing· 2mo agoListing: ageing, refreshed 2mo ago (2026-09-30T04:00:02.848359+00:00)Planning· 1mo agoPlanning: ageing, refreshed 1mo ago (2026-10-11T06:52:43.467484+00:00)Ownership· freshOwnership: fresh, refreshed 4d ago (2026-11-10T17:23:30.251928+00:00)EPC· 6mo agoEPC: stale, refreshed 6mo ago (2026-05-20T10:58:39.129138+00:00)Risk· 5mo agoRisk: stale, refreshed 5mo ago (2026-06-18T00:00:00+00:00)Crime· freshCrime: fresh, refreshed 4d ago (2026-11-11T13:01:03.839912+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· 2mo agoAmenities: ageing, refreshed 2mo ago (2026-09-23T00:00:00+00:00)Area· Census 2021Area: static reference data (Census 2021); authoritative and does not refresh
Basement Flat, 35 Portnall Road, London, W9 3BA

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
£480,000
£432k - £528kMedium
Estimate
£480k
Range
£432k – £528k
Rent Estimate (pcm)
£2,050
£2k - £2k
Monthly
£2,050
Yield
5.12%

Verdict

Derived from HomePortfolio scores

Basement Flat earns an INVESTIGATE rating with HP Score 60/100. Investment score 71/100 reflects strong fundamentals. Crime intensity is elevated. Walkability is excellent (95/100). 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
60/ 100
Mixed
Investment Score
71/ 100
High
Crime Score
100/ 100
Elevated
Walkability
95/ 100
Excellent
Transit & Bike
Transit 74Bike 77
Walk Score, out of 100

Valuation & Market

Sale Estimate£480,000
Rent Estimate (pcm)£2,050
Gross Yield5.12%
1y Growth+6.7%
3y Growth-4.5%
5y Growth-0.6%
10y Growth-0.3%
Last Sold Price-

Risk Overview

  • Flood RiskUnknown
  • SubsidenceSignificant
  • RadonLow
  • MiningUnknown
  • LandslideLow
  • Air QualityLow
  • NoiseModerate

Planning Activity

Recent Apps
1W9 3BA
Approval Rate
-12mo
Development
low
  • 26/07608/FULL
    Replacement of external windows and rear exit door, and installation of roof solar panels.
    Pending
  • 26/07525/FULL
    Erection of roof extension with terrace above, plus associated glazed balustrading, rear terrace with external stairs at fourth floor level, and replacement windows at third floor level to Flat 7E. Replacement windows to Flat 7D at second floor level.
    Pending
  • 26/07553/FULL
    Construction of a rear roof dormer extension to the existing top-floor flat, including associated roof alterations, installation of rooflights and new rear windows.
    Pending

Ownership

  • Corporate Ownership53.6%
  • Overseas OwnershipNo
  • Lease Term Remaining-
  • CovenantsRestrictive
  • Lease Type-
  • Last Ownership Change-
  • SourceLand Registry

Connectivity

Broadband (Standard)
16 Mbps
Mobile 4G/5G Coverage
EEThreeO2Vodafone
EV Charger
-
PTAL Rating
-

Area Profile

Median EarningsLocal authority£45,172
Population Density-
Owner Occupied17%
Age Distribution
0-15 15%16-64 76%65+ 9%

Schools Nearby

  • Queen's Park Primary School
    0.1 mi
    Good
  • The St Marylebone Church of England Bridge School
    0.1 mi
    -
  • Queen Elizabeth II Jubilee School
    0.2 mi
    -
  • Mary Paterson Nursery School
    0.2 mi
    Outstanding

0 of 9 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

Comparables

View All
  • 23 Portnall Road
    -
    £150k
    -
  • 37A Portnall Road
    -
    £530k
    -
  • 65 Portnall Road
    -
    £880k
    -
  • 51A Portnall Road
    -
    £990k
    -