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Flat 4, 81 Onslow Square, London, SW7 3LT

UPRN:217062285Flat/Maisonette2 bedsBuilt before 1900
LeaseholdCouncil Tax: Band HEPC: C (71)
Data freshness:Price Paid· freshPrice Paid: fresh, refreshed 5d 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· freshSchools: fresh, refreshed today (2026-11-05T17:42:09.721250+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 4, 81 Onslow Square, London, SW7 3LT

HP Score

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

    Mixed signals - investigate

Evidence
18 of 21 sources
Sale Estimate
£3,432,000
£3.26M - £3.60MHigh
Estimate
£3.43M
Range
£3.26M – £3.60M
Rent Estimate (pcm)
£12,450
£11k - £14k
Monthly
£12,450
Yield
4.35%

Verdict

Derived from HomePortfolio scores

Flat 4 earns an INVESTIGATE rating with HP Score 73/100. Investment score 71/100 reflects strong fundamentals. Crime intensity is elevated. Walkability is excellent (99/100). 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)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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS
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HP Score
73/ 100
Mixed
Investment Score
71/ 100
High
Crime Score
67/ 100
Elevated
Walkability
99/ 100
Excellent
Transit & Bike
Transit 100Bike 73
Walk Score, out of 100

Valuation & Market

Sale Estimate£3,432,000
Rent Estimate (pcm)£12,450
Gross Yield4.35%
1y Growth-
3y Growth-5.9%
5y Growth-3.9%
10y Growth-3.6%
Last Sold Price£3,700,000 (2026-06-15)
View Market Details

Risk Overview

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

Planning Activity

Recent Apps
1SW7 3LT
Approval Rate
100%12mo
Development
low
  • 26/07362/ADFULL
    Detailed drawings of secure cycle storage for the enlarged building pursuant to condition 7 of planning permission dated 2nd April 2026 (RN 26/00738/FULL)
    Pending
  • 26/07006/LBC
    Internal alterations at second floor level, including alterations to internal partitions and openings, relocation of the kitchen, alterations to bathroom facilities, removal of the existing fireplace surround and hearth, installation of new timber flooring, and associated works.
    Approved
  • 26/06845/TCA
    Works to be done G1 Silver Birch Red dot - Remove to ground level the two small Silver Birch
    Pending
View Planning Timeline

Ownership

  • Corporate Ownership40.8%
  • Overseas OwnershipNo
  • Lease Term Remaining164 yrs
  • CovenantsNone
  • Lease TypeLeasehold
  • Last Ownership Change2026-06-15
  • SourceLand Registry
View Ownership Details

Connectivity

Broadband (Standard)
16 Mbps
Mobile 4G/5G Coverage
EEThreeO2Vodafone
EV Charger
-
PTAL Rating
-
View Connectivity Map

Area Profile

Median EarningsLocal authority£46,690
Population Density7,139 /km²
Owner Occupied34%
Age Distribution
0-15 14%16-64 72%65+ 14%
View Area Profile

Schools Nearby

  • Mander Portman Woodward School
    0.1 mi
    Inspected by ISI
  • Our Lady of Victories RC Primary School
    0.1 mi

    Inspected as Our Lady of Victories RC Primary School (URN 100504) on 6 Dec 2023

  • Glendower Preparatory School
    0.1 mi
    Inspected by ISI
  • Queen's Gate School
    0.1 mi
    Inspected by ISI

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

View All Schools

Comparables

View All
  • 81 Onslow Square
    -
    £3.70M
    -
  • 81 Onslow Square
    -
    £2.50M
    -
  • 89 Onslow Square
    -
    £2.60M
    -
  • 81 Onslow Square
    -
    £3.33M
    -