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Second Floor and Third Floor Maisonette, 17 Upper Grosvenor Street, London, W1K 7PN

UPRN:10033548417Flat/MaisonetteBeds -Built 1900-1929
Tenure: -Council Tax: -EPC: B (82)
Data freshness:Listing· freshListing: fresh, refreshed yesterday (2026-11-06T04:00:06.530844+00:00)Price Paid· freshPrice Paid: fresh, refreshed 5d ago (2026-11-01T08:46:36.773860+00:00)Planning· 4mo agoPlanning: stale, refreshed 4mo ago (2026-07-10T08:19:47.039157+00:00)Ownership· freshOwnership: fresh, refreshed today (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
Second Floor and Third Floor Maisonette, 17 Upper Grosvenor Street, London, W1K 7PN

HP Score

Mixed
Verdict
today
  • Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.

    Mixed signals - investigate

Evidence
18 of 21 sources
Sale Estimate
£2,910,000
£2.33M - £3.49MLow
Estimate
£2.91M
Range
£2.33M – £3.49M
Rent Estimate (pcm)
£12,800
£12k - £14k
Monthly
£12,800
Yield
1.50%

Verdict

Derived from HomePortfolio scores

Second Floor and Third Floor Maisonette earns an INVESTIGATE rating with HP Score 63/100. Investment score 67/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (98/100). 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS
HP Score
63/ 100
Mixed
Investment Score
67/ 100
Moderate
Crime Score
100/ 100
Elevated
Walkability
98/ 100
Excellent
Transit & Bike
Transit 66Bike 75
Walk Score, out of 100

Valuation & Market

Sale Estimate£2,910,000
Rent Estimate (pcm)£12,800
Gross Yield1.50%
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
  • NoiseHigh

Planning Activity

Recent Apps
0W1K 7PN
Approval Rate
-12mo
Development
low
  • 26/07390/LBC
    Installation of a non-illuminated fascia sign measuring 0.29m x 0.79m and two vinyl signs applied to inside face of the glazed shopfront each measuring 0.22m x 0.84m. (Linked with 26/06970/ADV)
    Pending
  • 26/07393/ADV
    Display of an externally illuminated hanging sign measuring 10m X 6.25m
    Pending
  • 26/07367/ADLBC
    Details of new coordinated service routes pursuant to condition 6 (6) of listed building consent dated 14 March 2023 (RN: 22/05005/LBC)
    Pending

Ownership

  • Corporate Ownership7%
  • Overseas OwnershipNo
  • Lease Term Remaining-
  • CovenantsNone
  • Lease Type-
  • Last Ownership Change-
  • SourceLand Registry

Connectivity

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

Area Profile

Median EarningsLocal authority£45,172
Population Density-
Owner Occupied31%
Age Distribution
0-15 9%16-64 73%65+ 18%

Schools Nearby

  • St George's Hanover Square CofE Primary School
    0.3 mi
    Good
  • Connaught House School
    0.3 mi
    Inspected by ISI
  • Halcyon London International School
    0.4 mi
    Inspected by ISI
  • Wetherby Preparatory School
    0.4 mi
    Inspected by ISI

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

Comparables

View All
  • 17 Upper Grosvenor Street
    -
    £1.88M
    -
  • 17 Upper Grosvenor Street
    -
    £3.92M
    -