21 Keystone Crescent, London, N1 9DS
UPRN:5300054088Terrace Property3 bedsBuilt -
FreeholdCouncil Tax: Band FEPC: -
Data freshness:Listing· 7mo agoListing: stale, refreshed 7mo ago (2026-04-13T03:16:51.064741+00:00)Planning· 4mo agoPlanning: stale, refreshed 4mo ago (2026-07-10T09:44:24.086728+00:00)Ownership· freshOwnership: fresh, refreshed yesterday (2026-11-10T19:41:41.171695+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· 3mo agoSchools: stale, refreshed 3mo ago (2026-08-06T07:49:20.947654+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 refreshCouncil Tax· 6mo agoCouncil Tax: stale, refreshed 6mo ago (2026-05-20T09:33:12.870431+00:00)
Location map - no listing photos available
HP Score
60
/ 100
Mixed
Verdict
yesterday
- Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Mixed signals - investigate
Evidence
19 of 21 sourcesSale Estimate
£1,225,000
£1.10M - £1.35MMedium
Estimate
£1.23M
Range
£1.10M – £1.35M
Rent Estimate (pcm)
£5,050
£5k - £6k
Monthly
£5,050
Yield
4.95%
Verdict
Derived from HomePortfolio scores
21 Keystone Crescent earns an INVESTIGATE rating with HP Score 60/100. Investment score 60/100 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 freehold. 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)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 covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS
60
HP Score
60/ 100
Mixed
60
Investment Score
60/ 100
Moderate
100
Crime Score
100/ 100
Elevated
99
Walkability
99/ 100
Excellent
Transit & Bike
Transit 100Bike 76
Walk Score, out of 100
Valuation & Market
Sale Estimate£1,225,000
Rent Estimate (pcm)£5,050
Gross Yield4.95%
1y Growth-
3y Growth-1.3%
5y Growth-0.6%
10y Growth+0.5%
Last Sold Price£132,000 (1996-10-25)
Risk Overview
- Flood RiskUnknown
- SubsidenceSignificant
- RadonLow
- MiningUnknown
- LandslideLow
- Air QualityLow
- NoiseHigh
Planning Activity
Recent Apps
0N1 9DS
Approval Rate
-12mo
Development
low
- PendingP2026/2870/LBCReplacement of 2x windows, installation of 9x solar panels, ASHP and associated external works. Internal alterations to include reconfiguration of third floor plan [Full Planinng P2026/2869/FUL also submitted].
- PendingP2026/2869/FULReplacement of 2x windows, installation of 9x solar panels, ASHP and associated external works. Internal alterations to include reconfiguration of third floor plan [Listed Building Consent P2026/2870/LBC also submitted].
- Pending2026/4841/PNon-material amendment to planning permission ref. 2025/1684/P (granted as a variation of conditions 2 (approved drawings) and 20 (fire statement) of planning permission ref. 2022/1817/P dated 10/05/2023 for the erection of roof extensions at third, fourth and fifth floor level with rooftop plant in connection with the continued commercial use of the building (Class E) with associated external alterations to all elevations, public realm improvements; roof terraces at levels three, four and five, provision of cycle parking, waste/recycling storage and other services), namely to: amend the location of the affordable workspace from the first floor to the ground floor.
Ownership
- Corporate Ownership43.2%
- Overseas OwnershipNo
- Lease Term Remaining-
- CovenantsRestrictive
- Lease TypeFreehold
- Last Ownership Change1996-10-25
- SourceLand Registry
Connectivity
Broadband (Standard)
15 Mbps
Mobile 4G/5G Coverage
EEThreeO2Vodafone
EV Charger
-
PTAL Rating
-
Area Profile
Median EarningsLocal authority£47,411
Population Density13,401 /km²
Owner Occupied21%
Age Distribution
0-15 11%16-64 80%65+ 9%
Schools Nearby
- Winton Primary School0.2 miOutstandingImproving
- Argyle Primary School0.3 miGood
- New River College Medical0.3 miReport card2026
Ofsted no longer awards a single overall grade.
- -Kate Greenaway Nursery School and Children's Centre0.3 mi
1 of 8 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.
Comparables
- 2A Keystone Crescent-£700k-
- 10 Keystone Crescent-£850k-
- 4 Keystone Crescent-£920k-
- 3 Keystone Crescent-£995k-