Flat 21, Marlborough, 61 Walton Street, London, SW3 2JU
UPRN:217100679Purpose Built Flat1 bedsBuilt 1930-1949
LeaseholdCouncil Tax: -EPC: C (75)
Data freshness:Price Paid· freshPrice Paid: fresh, refreshed 3d ago (2026-11-01T12:48:28.390450+00:00)Planning· 4mo agoPlanning: stale, refreshed 4mo ago (2026-07-10T08:52:41.422899+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)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
HP Score
85
/ 100
Strong
Verdict
3 days ago
- Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Strong fundamentals; flood risk not assessed
Evidence
19 of 21 sourcesSale Estimate
£579,000
£550k - £608kHigh
Estimate
£579k
Range
£550k – £608k
Rent Estimate (pcm)
£2,650
£2k - £3k
Monthly
£2,650
Yield
5.49%
Verdict
Derived from HomePortfolio scores
Flat 21 earns an INVESTIGATE rating with HP Score 85/100. Investment score 71/100 reflects strong fundamentals. Crime intensity is low. Walkability is excellent (96/100). 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 company ownershipHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS
85
HP Score
85/ 100
Strong
71
Investment Score
71/ 100
High
19
Crime Score
19/ 100
Moderate
96
Walkability
96/ 100
Excellent
Transit & Bike
Transit 81Bike 70
Walk Score, out of 100
Valuation & Market
Sale Estimate£579,000
Rent Estimate (pcm)£2,650
Gross Yield5.49%
1y Growth-
3y Growth-9.5%
5y Growth-4.5%
10y Growth-2.4%
Last Sold Price£545,000 (2012-10-03)
Risk Overview
- Flood RiskUnknown
- SubsidenceSignificant
- RadonLow
- MiningUnknown
- LandslideLow
- Air QualityLow
- NoiseLow
Planning Activity
Recent Apps
0SW3 2JU
Approval Rate
-12mo
Development
low
- Pending26/07272/LBCInstallation of 1 temporary structures (marquee) on the gravelled terrace above basement level. (Linked with 26/07271/FULL)
- Pending26/07271/FULLInstallation of temporary marquee structure on the gravelled terrace above basement level.
- Pending26/07228/ADFULLDetails of the raised boundary wall and sample panel pursuant to condition 4 of planning permission dated 30 September 2026 (RN: 26/04283/FULL).
Ownership
- Corporate Ownership32.6%
- Overseas OwnershipNo
- Lease Term Remaining158 yrs
- CovenantsNone
- Lease TypeLeasehold
- Last Ownership Change2012-10-03
- SourceLand Registry
Connectivity
Broadband (Standard)
18 Mbps
Mobile 4G/5G Coverage
EEThreeO2Vodafone
EV Charger
-
PTAL Rating
-
Area Profile
Median EarningsLocal authority£46,690
Population Density10,287 /km²
Owner Occupied44%
Age Distribution
0-15 16%16-64 69%65+ 15%
Schools Nearby
- Marlborough Primary School0.2 miArea grades2024
Inspected after Ofsted withdrew the single overall grade.
- Inspected by ISIKnightsbridge School0.3 mi
- Inspected by ISISussex House School0.3 mi
- St Joseph's Catholic Primary School0.3 miOutstanding
2 of 4 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.
Comparables
- Marlborough, 61 Walton Street-£590k-
- Marlborough, 61 Walton Street-£630k-
- Marlborough, 61 Walton Street-£755k-
- Marlborough, 61 Walton Street-£720k-