Flat 3, 23 Sackville Street, London, W1S 3DN
UPRN:10033604178Flat/Maisonette3 bedsBuilt 1900-1929
Tenure: -Council Tax: Band HEPC: C (78)
Data freshness:Listing· 8mo agoListing: stale, refreshed 8mo ago (2026-03-23T08:38:43.027431+00:00)Price Paid· freshPrice Paid: fresh, refreshed 5d ago (2026-11-01T08:48:11.154109+00:00)Planning· 4mo agoPlanning: stale, refreshed 4mo ago (2026-07-10T08:24:16.646308+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· 1mo agoSchools: ageing, refreshed 1mo ago (2026-10-06T08:24:30.427161+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
61
/ 100
Mixed
Verdict
yesterday
- Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Mixed signals - investigate
Evidence
17 of 21 sourcesSale Estimate
£4,089,000
£3.27M - £4.91MLow
Estimate
£4.09M
Range
£3.27M – £4.91M
Rent Estimate (pcm)
£14,750
£13k - £16k
Monthly
£14,750
Yield
4.33%
Verdict
Derived from HomePortfolio scores
Flat 3 earns an INVESTIGATE rating with HP Score 61/100. Investment score 61/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (100/100). 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 leasesPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS
61
HP Score
61/ 100
Mixed
61
Investment Score
61/ 100
Moderate
100
Crime Score
100/ 100
Elevated
100
Walkability
100/ 100
Excellent
Transit & Bike
Transit 100Bike 78
Walk Score, out of 100
Valuation & Market
Sale Estimate£4,089,000
Rent Estimate (pcm)£14,750
Gross Yield4.33%
1y Growth-
3y Growth+21.0%
5y Growth+4.1%
10y Growth-1.3%
Last Sold Price-
Risk Overview
- Flood RiskUnknown
- SubsidenceSignificant
- RadonLow
- MiningUnknown
- LandslideLow
- Air QualityLow
- NoiseHigh
Planning Activity
Recent Apps
0W1S 3DN
Approval Rate
-12mo
Development
low
- Pending2026/4764/PChange of use of the existing ground floor unit from retail (Class E) to ancillary hotel use (Class C1), providing a publicly accessible hotel reception and lounge with ancillary retail, café, exhibition and artist-related activities. No external alterations proposed.
- Pending26/07376/ADFULLSample of the York stone to be used for the new front steps to ground floor level; pursuant to condition 7 of planning permission dated 13th October 2026 (26/00554/LBC)
- Pending26/07367/ADLBCDetails of new coordinated service routes pursuant to condition 6 (6) of listed building consent dated 14 March 2023 (RN: 22/05005/LBC)
Ownership
- Corporate Ownership12.5%
- Overseas OwnershipNo
- Lease Term Remaining-
- CovenantsNone
- Lease Type-
- Last Ownership Change-
- SourceLand Registry
Connectivity
Broadband (Standard)
19 Mbps
Mobile 4G/5G Coverage
EEThreeO2Vodafone
EV Charger
-
PTAL Rating
-
Area Profile
Median EarningsLocal authority£45,172
Population Density-
Owner Occupied16%
Age Distribution
0-15 9%16-64 80%65+ 11%
Schools Nearby
- Soho Parish CofE Primary School0.3 miGoodConcerns
- St George's Hanover Square CofE Primary School0.4 miGood
- -University of Westminster0.5 mi
- Inspected by ISILondon Park School Mayfair and London Park School Sixth0.5 mi
1 of 4 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.