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Flat 15, Sloane Square House, 1 Holbein Place, London, SW1W 8NS

UPRN:217038250Flat/Maisonette2 bedsBuilt 1950-1966
LeaseholdCouncil Tax: -EPC: E (54)
Data freshness:Listing· 4mo agoListing: stale, refreshed 4mo ago (2026-07-03T07:47:01.642506+00:00)Price Paid· freshPrice Paid: fresh, refreshed 5d ago (2026-11-01T12:46:27.467600+00:00)Planning· 4mo agoPlanning: stale, refreshed 4mo ago (2026-07-10T09:56:13.075709+00:00)Ownership· freshOwnership: fresh, refreshed today (2026-11-06T18:10:25.217220+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 15, Sloane Square House, 1 Holbein Place, London, SW1W 8NS

HP Score

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

    Mixed signals - investigate

Evidence
18 of 21 sources
Sale Estimate
£919,000
£735k - £1.10MLow
Estimate
£919k
Range
£735k – £1.10M
Rent Estimate (pcm)
£3,850
£4k - £4k
Monthly
£3,850
Yield
5.03%

Verdict

Derived from HomePortfolio scores

Flat 15 earns an INVESTIGATE rating with HP Score 73/100. Investment score 75/100 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. 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 NationsMarket 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
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HP Score
73/ 100
Mixed
Investment Score
75/ 100
High
Crime Score
68/ 100
Elevated
Walkability
95/ 100
Excellent
Transit & Bike
Transit 98Bike 70
Walk Score, out of 100

Valuation & Market

Sale Estimate£919,000
Rent Estimate (pcm)£3,850
Gross Yield5.03%
1y Growth-
3y Growth+3.4%
5y Growth+0.4%
10y Growth+2.8%
Last Sold Price£815,000 (2010-03-09)
View Market Details

Risk Overview

  • Flood RiskUnknown
  • SubsidenceSignificant
  • RadonLow
  • MiningUnknown
  • LandslideLow
  • Air QualityLow
  • NoiseHigh
View Full Risk Report

Planning Activity

Recent Apps
0SW1W 8NS
Approval Rate
-12mo
Development
low
  • 26/07388/ADFULL
    Detailed drawings of all new windows and external doors; pursuant to condition 4 of planning permission dated 23rd July 2026 (26/02493/FULL)
    Pending
  • 26/07386/ADFULL
    Details of Window, including section drawings showing the glazing bars; Door, including section drawings showing the glazing bars; Awning; pursuant to condition 3 (a, b, and c) of planning permission dated 4th September 2026 (26/04925/FULL)
    Pending
  • 26/07387/ADFULL
    Samples of the facing materials, including detailed drawings of the dormers, and windows including section drawings showing the glazing bars; pursuant to condition 3 and 4 of planning permission dated 4th September 2026 (26/04924/FULL)
    Pending
View Planning Timeline

Ownership

  • Corporate Ownership16.3%
  • Overseas OwnershipNo
  • Lease Term Remaining124 yrs
  • CovenantsNone
  • Lease TypeLeasehold
  • Last Ownership Change2010-03-09
  • SourceLand Registry
View Ownership Details

Connectivity

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

Area Profile

Median EarningsLocal authority£46,690
Population Density-
Owner Occupied28%
Age Distribution
0-15 11%16-64 68%65+ 21%
View Area Profile

Schools Nearby

  • Holy Trinity CofE Primary School
    0.1 mi
    Good
  • Eaton House School
    0.2 mi
    Inspected by ISI
  • Inchbald School of Design
    0.2 mi
    -
  • St. Thomas More Language College
    0.2 mi

    Inspected as Saint Thomas More Language College (URN 100502) on 24 May 2022

1 of 6 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All
  • Sloane Square House, 1 Holbein Place
    -
    £900k
    -
  • Sloane Square House, 1 Holbein Place
    -
    £319k
    -
  • Sloane Square House, 1 Holbein Place
    -
    £2.90M
    -
  • Sloane Square House, 1 Holbein Place
    -
    £1.07M
    -