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Flat 3, Herbert Mansions, 35 Sloane Street, London, SW1X 9LP

UPRN:217078189Flat/Maisonette4 bedsBuilt 1900-1929
Tenure: -Council Tax: -EPC: B (81)
Data freshness:Price Paid· freshPrice Paid: fresh, refreshed 4d ago (2026-11-01T12:48:28.390450+00:00)Planning· 3mo agoPlanning: stale, refreshed 3mo ago (2026-07-27)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· 1mo agoAmenities: ageing, refreshed 1mo ago (2026-09-23T00:00:00+00:00)Area· Census 2021Area: static reference data (Census 2021); authoritative and does not refresh
Flat 3, Herbert Mansions, 35 Sloane Street, London, SW1X 9LP

HP Score

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

    Mixed signals - investigate

Evidence
18 of 21 sources
Sale Estimate
£3,337,000
£2.67M - £4.00MLow
Estimate
£3.34M
Range
£2.67M – £4.00M
Rent Estimate (pcm)
£14,150
£13k - £15k
Monthly
£14,150
Yield
5.09%

Verdict

Derived from HomePortfolio scores

Flat 3 earns an INVESTIGATE rating with HP Score 65/100. Investment score 70/100 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
65/ 100
Mixed
Investment Score
70/ 100
Moderate
Crime Score
100/ 100
Elevated
Walkability
98/ 100
Excellent
Transit & Bike
Transit 62Bike 72
Walk Score, out of 100

Valuation & Market

Sale Estimate£3,337,000
Rent Estimate (pcm)£14,150
Gross Yield5.09%
1y Growth-
3y Growth+6.5%
5y Growth+8.8%
10y Growth+3.3%
Last Sold Price-

Risk Overview

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

Planning Activity

Recent Apps
1SW1X 9LP
Approval Rate
100%12mo
Development
low
  • 26/07369/TCA
    T1 - Large Sycamore Minor pruning of the crown overhanging Eaton Lane, comprising removal/pruning back of the specific branch growth extending beyond and above the boundary fence line, as identified in the submitted Existing and Proposed Tree Works Photographs. The works are required to provide clearance for the proposed temporary welfare cabin and gantry installation associated with the 8 Eaton Lane development. Pruning will be limited to the minimum extent necessary to achieve the required clearance, with larger structural branches retained.
    Pending
  • 26/07306/LBC
    Installation of an external condenser and internal insulation, replacement sashes and crittall windows/doors, complete with minor internal alterations. (Linked to 26/07305/FULL)
    Pending
  • 26/07305/FULL
    Installation of an external condenser at roof level and internal insulation, replacement sashes and crittall windows/doors. Internal alterations.
    Pending

Ownership

  • Corporate Ownership29.9%
  • Overseas OwnershipNo
  • Lease Term Remaining-
  • CovenantsNone
  • Lease Type-
  • Last Ownership Change-
  • SourceLand Registry

Connectivity

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

Area Profile

Median EarningsLocal authority£46,690
Population Density-
Owner Occupied25%
Age Distribution
0-15 11%16-64 77%65+ 12%

Schools Nearby

  • Hill House School
    0.2 mi
    Outstanding
  • More House School
    0.2 mi
    Inspected by ISI
  • Knightsbridge School
    0.2 mi
    Inspected by ISI
  • Caelum House School
    0.3 mi
    Inspected by ISI

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

Comparables

View All
  • Herbert Mansions, 35 Sloane Street
    -
    £3.20M
    -
  • Herbert Mansions, 35 Sloane Street
    -
    £1.02M
    -
  • Herbert Mansions, 35 Sloane Street
    -
    £800k
    -
  • Herbert Mansions, 35 Sloane Street
    -
    £650k
    -