Flat 9, 4 Lyall Street, London, SW1X 8DW
UPRN:100022775615Flat/Maisonette1 bedsBuilt before 1900
Tenure: -Council Tax: Band EEPC: C (71)
Data freshness:Price Paid· freshPrice Paid: fresh, refreshed 3d ago (2026-11-01T02:34:48.065635+00:00)Planning· 4mo agoPlanning: stale, refreshed 4mo ago (2026-07-10T08:46:49.881931+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
£1,217,000
£973k - £1.46MLow
Estimate
£1.22M
Range
£973k – £1.46M
Rent Estimate (pcm)
£5,150
£5k - £6k
Monthly
£5,150
Yield
5.08%
Verdict
Derived from HomePortfolio scores
Flat 9 earns an INVESTIGATE rating with HP Score 85/100. Investment score 71/100 reflects strong fundamentals. Crime intensity is low. Walkability is excellent (97/100). 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
85
HP Score
85/ 100
Strong
71
Investment Score
71/ 100
High
19
Crime Score
19/ 100
Moderate
97
Walkability
97/ 100
Excellent
Transit & Bike
Transit 61Bike 74
Walk Score, out of 100
Valuation & Market
Sale Estimate£1,217,000
Rent Estimate (pcm)£5,150
Gross Yield5.08%
1y Growth-
3y Growth+6.5%
5y Growth+8.8%
10y Growth+3.3%
Last Sold Price-
Risk Overview
- Flood RiskUnknown
- SubsidenceSignificant
- RadonLow
- MiningUnknown
- LandslideLow
- Air QualityLow
- NoiseModerate
Planning Activity
Recent Apps
0SW1X 8DW
Approval Rate
-12mo
Development
low
- 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).
- Pending26/07194/ADVDisplay of two internally illuminated double-sided projecting signs, each measuring 0.57m × 0.67m. (Linked with 26/07193/FULL)
- Pending26/07179/ADFULLSample of the brickwork; pursuant to condition 6 of planning permission dated 5th August 2026 (26/01273/FULL)
Ownership
- Corporate Ownership29.9%
- Overseas OwnershipNo
- Lease Term Remaining-
- CovenantsRestrictive
- Lease Type-
- Last Ownership Change-
- SourceLand Registry
Connectivity
Broadband (Standard)
22 Mbps
Mobile 4G/5G Coverage
EEThreeO2Vodafone
EV Charger
-
PTAL Rating
-
Area Profile
Median EarningsLocal authority£45,172
Population Density7,122 /km²
Owner Occupied57%
Age Distribution
0-15 12%16-64 67%65+ 21%
Schools Nearby
- Inspected by ISIMore House School0.1 mi
- Hill House School0.1 miOutstanding
- -Inchbald School of Design0.2 mi
- Inspected by ISIEaton House School0.2 mi
1 of 6 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.
Comparables
- 4 Lyall Street-£805k-
- 4 Lyall Street-£100k-
- 4 Lyall Street-£2.80M-
- 2 - 3 Lyall Street-£3.60M-