12 Belsize Lane, London, NW3 5AB
UPRN:5044807Flat/MaisonetteBeds -Built 1900-1929
Tenure: -Council Tax: Band EEPC: C (69)
Data freshness:Listing· 8mo agoListing: stale, refreshed 8mo ago (2026-03-19T13:52:17.943725+00:00)Price Paid· freshPrice Paid: fresh, refreshed 5d ago (2026-11-01T14:01:41.466199+00:00)Planning· 6mo agoPlanning: stale, refreshed 6mo ago (2026-05-20T08:19:50.636452+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 yesterday (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 refreshCouncil Tax· 6mo agoCouncil Tax: stale, refreshed 6mo ago (2026-05-20T09:33:12.870431+00:00)
HP Score
61
/ 100
Mixed
Verdict
today
- Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Mixed signals - investigate
Evidence
19 of 21 sourcesSale Estimate
£1,046,000
£837k - £1.25MLow
Estimate
£1.05M
Range
£837k – £1.25M
Rent Estimate (pcm)
£4,250
£4k - £5k
Monthly
£4,250
Yield
4.88%
Verdict
Derived from HomePortfolio scores
12 Belsize Lane earns an INVESTIGATE rating with HP Score 61/100. Investment score 70/100 reflects strong fundamentals. Crime intensity is elevated. Walkability is excellent (91/100). 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 covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS
61
HP Score
61/ 100
Mixed
70
Investment Score
70/ 100
High
100
Crime Score
100/ 100
Elevated
91
Walkability
91/ 100
Excellent
Transit & Bike
Transit 80Bike 67
Walk Score, out of 100
Valuation & Market
Sale Estimate£1,046,000
Rent Estimate (pcm)£4,250
Gross Yield4.88%
1y Growth-41.7%
3y Growth-2.2%
5y Growth-0.4%
10y Growth+0.3%
Last Sold Price-
Risk Overview
- Flood RiskUnknown
- SubsidenceSignificant
- RadonLow
- MiningUnknown
- LandslideLow
- Air QualityLow
- NoiseLow
Planning Activity
Recent Apps
1NW3 5AB
Approval Rate
100%12mo
Development
low
- Pending2026/4824/TFRONT GARDEN: 1 x Ash (T1) - Reduce main upper crown to previous pruning points not to breach new heartwood in pruning by returning to small diameter points in pruning points.
- Pending2026/4254/PRetention of 2 x exterior condenser units to the rear (retrospective).
- Pending2026/4829/TFRONT GARDEN: 1 x Eucalyptus (T1) - Fell to ground level. REAR GARDEN: 1 x Sycamore (T2) - Reduce height by approx. 4m.
Ownership
- Corporate Ownership52.5%
- Overseas OwnershipNo
- Lease Term Remaining-
- CovenantsRestrictive
- Lease Type-
- Last Ownership Change-
- SourceLand Registry
Connectivity
Broadband (Standard)
14 Mbps
Mobile 4G/5G Coverage
EEThreeO2Vodafone
EV Charger
-
PTAL Rating
-
Area Profile
Median EarningsLocal authority£44,088
Population Density9,302 /km²
Owner Occupied19%
Age Distribution
0-15 14%16-64 73%65+ 13%
Schools Nearby
- Maria Montessori School0.0 miGood
- Inspected by ISIHampstead Hill School0.1 mi
- Inspected by ISISt Christopher's School0.1 mi
- Rosary Catholic Primary School0.2 miGood
0 of 3 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.
Comparables
- 16 - 18A Belsize Lane-£954k-
- Rosslyn Heights, 2 Belsize Lane-£1.35M-
- Rosslyn Heights, 2 Belsize Lane-£1.93M-
- 18 Belsize Lane-£825k-