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Flat 1, 9 Grosvenor Hill, London, W1K 3QA

UPRN:100022759451Flat/Maisonette1 bedsBuilt 2007 onwards
LeaseholdCouncil Tax: Band FEPC: D (66)
Data freshness:Listing· freshListing: fresh, refreshed 6d ago (2026-11-04T04:00:06.345886+00:00)Planning· 3mo agoPlanning: ageing, refreshed 3mo ago (2026-08-22T13:21:57.446782+00:00)Ownership· freshOwnership: fresh, refreshed 3d ago (2026-11-06T16:21:23.368951+00:00)EPC· 4mo agoEPC: stale, refreshed 4mo ago (2026-07-01T02:04:50.057738+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 (2026-10-06T05:00:30.533230+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 refreshCouncil Tax· 1mo agoCouncil Tax: ageing, refreshed 1mo ago (2026-10-11T12:04:00.280600+00:00)
Flat 1, 9 Grosvenor Hill, London, W1K 3QA

HP Score

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

    Mixed signals - investigate

Evidence
19 of 21 sources
Sale Estimate
£2,545,000
£2.04M - £3.05MLow
Estimate
£2.54M
Range
£2.04M – £3.05M
Rent Estimate (pcm)
£11,200
£10k - £12k
Monthly
£11,200
Yield
5.28%

Verdict

Derived from HomePortfolio scores

Flat 1 earns an INVESTIGATE rating with HP Score 60/100. Investment score 60/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (91/100). 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)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
60/ 100
Moderate
Crime Score
100/ 100
Elevated
Walkability
91/ 100
Excellent
Transit & Bike
Transit 100Bike 72
Walk Score, out of 100

Valuation & Market

Sale Estimate£2,545,000
Rent Estimate (pcm)£11,200
Gross Yield5.28%
1y Growth-
3y Growth-7.1%
5y Growth+2.9%
10y Growth-0.5%
Last Sold Price-

Risk Overview

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

Planning Activity

Recent Apps
1W1K 3QA
Approval Rate
-12mo
Development
low
  • 26/07410/FULL
    Alterations to the existing basement to Level 06, and an extension of the existing building to provide an additional floor of new office (Class E(g)(i)) floorspace, including a new roof level terrace and plant room; public realm and associated works.
    Pending
  • 26/07419/LBC
    Installation of a telecommunications cable within a Grade II listed building to provide fibre connectivity.
    Pending
  • 26/07422/FULL
    Remediation works to the existing facade.
    Pending

Ownership

  • Corporate Ownership7%
  • Overseas OwnershipNo
  • Lease Term Remaining-
  • CovenantsRestrictive
  • Lease TypeLeasehold
  • Last Ownership Change-
  • 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 Occupied36%
Age Distribution
0-15 8%16-64 73%65+ 19%

Schools Nearby

  • St George's Hanover Square CofE Primary School
    0.2 mi
    Good
  • Wetherby Senior School
    0.4 mi
    Inspected by ISI
  • University of Westminster
    0.4 mi
    -
  • London Park School Mayfair and London Park School Sixth
    0.5 mi
    Inspected by ISI

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

Comparables

View All
  • Mayfair Chambers, 15 Grosvenor Hill
    -
    £2.35M
    -
  • Mayfair Chambers, 15 Grosvenor Hill
    -
    £4.50M
    -
  • Mayfair Chambers, 15 Grosvenor Hill
    -
    £232k
    -
  • Mayfair Chambers, 15 Grosvenor Hill
    -
    £2.75M
    -