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71 Onslow Square, London, SW7 3LS

UPRN:217062266Flat/Maisonette3 bedsBuilt before 1900
LeaseholdCouncil Tax: Band HEPC: D (68)
Data freshness:Price Paid· freshPrice Paid: fresh, refreshed 6d ago (2026-11-01T12:48:28.390450+00:00)Planning· freshPlanning: fresh, refreshed 6d ago (2026-11-02T06:45:03.146428+00:00)Ownership· freshOwnership: fresh, refreshed yesterday (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· freshSchools: fresh, refreshed 2d ago (2026-11-05T17:42:09.721250+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
71 Onslow Square, London, SW7 3LS

HP Score

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

    Mixed signals - investigate

Evidence
18 of 21 sources
Sale Estimate
£3,368,000
£2.69M - £4.04MLow
Estimate
£3.37M
Range
£2.69M – £4.04M
Rent Estimate (pcm)
£12,300
£11k - £14k
Monthly
£12,300
Yield
4.38%

Verdict

Derived from HomePortfolio scores

71 Onslow Square earns an INVESTIGATE rating with HP Score 72/100. Investment score 68/100 reflects moderate 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 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
72/ 100
Mixed
Investment Score
68/ 100
Moderate
Crime Score
67/ 100
Elevated
Walkability
99/ 100
Excellent
Transit & Bike
Transit 100Bike 73
Walk Score, out of 100

Valuation & Market

Sale Estimate£3,368,000
Rent Estimate (pcm)£12,300
Gross Yield4.38%
1y Growth-
3y Growth-5.9%
5y Growth-3.9%
10y Growth-3.6%
Last Sold Price£1,090,000 (2005-01-31)
View Market Details

Risk Overview

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

Planning Activity

Recent Apps
1SW7 3LS
Approval Rate
100%12mo
Development
low
  • 26/07385/TCA
    T238 & T239 - Arbutus unedo (Strawberry Tree): Reduce crown by specified extent - height and branch length by up to approximately 2.5m to allow cctv camera to have clear site of entry point for safety, as there a safe guarding issue for student accommodation. Pruning should be back at previous pollard points and at suitable growth points.
    Pending
  • 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
  • 26/07271/FULL
    Installation of temporary marquee structure on the gravelled terrace above basement level.
    Pending
View Planning Timeline

Ownership

  • Corporate Ownership40.8%
  • Overseas OwnershipNo
  • Lease Term Remaining-
  • CovenantsNone
  • Lease TypeLeasehold
  • Last Ownership Change2005-01-31
  • SourceLand Registry
View Ownership Details

Connectivity

Broadband (Standard)
17 Mbps
Mobile 4G/5G Coverage
-
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
  • 73 Onslow Square
    -
    £1.73M
    -
  • 69 Onslow Square
    -
    £5.00M
    -
  • 61 Onslow Square
    -
    £2.75M
    -
  • 61A Onslow Square
    -
    £718k
    -