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Flat 4, 21 Maddox Street, London, W1S 2QJ

UPRN:10033615110Flat/Maisonette1 bedsBuilt before 1900
LeaseholdCouncil Tax: Band FEPC: C (75)
Data freshness:Planning· 4mo agoPlanning: stale, refreshed 4mo ago (2026-07-10T08:37:50.357196+00:00)Ownership· freshOwnership: fresh, refreshed 2d ago (2026-11-06T17:34:01.679477+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)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
Flat 4, 21 Maddox Street, London, W1S 2QJ

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
£1,397,000
£1.26M - £1.54MMedium
Estimate
£1.40M
Range
£1.26M – £1.54M
Rent Estimate (pcm)
£4,650
£4k - £5k
Monthly
£4,650
Yield
3.99%

Verdict

Derived from HomePortfolio scores

Flat 4 earns an INVESTIGATE rating with HP Score 61/100. Investment score 61/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (100/100). 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 SourcesEPC RegisterPortal listingsOfcom Connected NationsOfcom mobile coverageMarket estimates (third-party AVM)HM Land Registry sales matched to addressDefra 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS
HP Score
61/ 100
Mixed
Investment Score
61/ 100
Moderate
Crime Score
100/ 100
Elevated
Walkability
100/ 100
Excellent
Transit & Bike
Transit 100Bike 78
Walk Score, out of 100

Valuation & Market

Sale Estimate£1,397,000
Rent Estimate (pcm)£4,650
Gross Yield3.99%
1y Growth-
3y Growth+21.0%
5y Growth+4.1%
10y Growth-1.3%
Last Sold Price£1,380,000 (2015-11-30)

Risk Overview

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

Planning Activity

Recent Apps
0W1S 2QJ
Approval Rate
-12mo
Development
low
  • 2026/4885/P
    Non-material amendments to planning permission ref. 2024/4840/P dated 20 August 2025 for commercial refurbishment and extension of the building, to amend the wording of Condition 15 (Green Roof Details).
    Pending
  • 2026/4827/P
    Installation of new kitchen extraction system (retrospective).
    Pending
  • 2026/4584/L
    Internal alterations and refurbishments, including reconfigured bathrooms, alterations to partitions and doors, and reinstatement of traditional cornices and joinery.
    Pending

Ownership

  • Corporate Ownership12.5%
  • Overseas OwnershipNo
  • Lease Term Remaining-
  • CovenantsNone
  • Lease TypeLeasehold
  • Last Ownership Change2015-11-30
  • SourceLand Registry

Connectivity

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

Area Profile

Median EarningsLocal authority£45,172
Population Density-
Owner Occupied16%
Age Distribution
0-15 9%16-64 80%65+ 11%

Schools Nearby

  • University of Westminster
    0.2 mi
    -
  • Queen's College, London
    0.4 mi
    Inspected by ISI
  • Soho Parish CofE Primary School
    0.4 mi
    GoodConcerns
  • Wetherby Senior School
    0.4 mi
    Inspected by ISI

2 of 5 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

Comparables

View All
  • Site Office, 21 Maddox Street
    -
    £100k
    -
  • 21 Maddox Street
    -
    £1.10M
    -
  • 21 Maddox Street
    -
    £2.25M
    -
  • 29 Maddox Street
    -
    £1.00M
    -