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Porter's Flat, 99 Eaton Place, London, SW1X 8LZ

UPRN:217026960Flat/Maisonette4 bedsBuilt -
Shared ownershipCouncil Tax: -EPC: -
Data freshness:Listing· 3mo agoListing: ageing, refreshed 3mo ago (2026-08-18T15:06:06.624761+00:00)Price Paid· freshPrice Paid: fresh, refreshed 4d ago (2026-11-01T12:46:27.467600+00:00)Planning· 3mo agoPlanning: stale, refreshed 3mo ago (2026-07-27)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
Porter's Flat, 99 Eaton Place, London, SW1X 8LZ

HP Score

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

    Strong fundamentals; flood risk not assessed

Evidence
18 of 21 sources
Sale Estimate
£4,220,000
£3.38M - £5.06MLow
Estimate
£4.22M
Range
£3.38M – £5.06M
Rent Estimate (pcm)
£17,900
£16k - £19k
Monthly
£17,900
Yield
5.09%

Verdict

Derived from HomePortfolio scores

Porter's Flat earns an INVESTIGATE rating with HP Score 82/100. Investment score 64/100 reflects moderate fundamentals. Crime intensity is low. Walkability is excellent (95/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. Tenure is shared ownership. Every figure here comes from the live HomePortfolio API; anything it does not publish is left out.

Key SourcesPortal 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
82/ 100
Strong
Investment Score
64/ 100
Moderate
Crime Score
20/ 100
Moderate
Walkability
95/ 100
Excellent
Transit & Bike
Transit 75Bike 77
Walk Score, out of 100

Valuation & Market

Sale Estimate£4,220,000
Rent Estimate (pcm)£17,900
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
  • NoiseModerate

Planning Activity

Recent Apps
2SW1X 8LZ
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
  • 26/07298/FULL
    Replacement water tank room at roof level.
    Pending

Ownership

  • Corporate Ownership29.9%
  • Overseas OwnershipNo
  • Lease Term Remaining-
  • CovenantsRestrictive
  • Lease TypeShared ownership
  • Last Ownership Change-
  • SourceLand Registry

Connectivity

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

Area Profile

Median EarningsLocal authority£46,690
Population Density-
Owner Occupied34%
Age Distribution
0-15 14%16-64 68%65+ 18%

Schools Nearby

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

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

Comparables

View All
  • 95 Eaton Place
    -
    £6.75M
    -
  • 95 Eaton Place
    -
    £3.25M
    -
  • 97 - 99 Eaton Place
    -
    £5.50M
    -
  • 95 Eaton Place
    -
    £1.68M
    -