4 Windsor House, 1 Canal Walk, Portsmouth, PO1 1RB
UPRN:1775010193Flat/Maisonette1 bedsBuilt 1991-1995
LeaseholdCouncil Tax: -EPC: C (75)
Data freshness:Listing· 8mo agoListing: stale, refreshed 8mo ago (2026-03-18T18:46:40.497217+00:00)Planning· 4mo agoPlanning: stale, refreshed 4mo ago (2026-07-10T08:58:51.277964+00:00)EPC· 4mo agoEPC: stale, refreshed 4mo ago (2026-07-01T02:04:50.057738+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· 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 refresh
HP Score
54
/ 100
Mixed
Verdict
3 days ago
- Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Mixed signals - investigate
Evidence
19 of 21 sourcesSale Estimate
£103,000
£93k - £113kMedium
Estimate
£103k
Range
£93k – £113k
Rent Estimate (pcm)
£550
£550 - £600
Monthly
£550
Yield
6.41%
Verdict
Derived from HomePortfolio scores
4 Windsor House earns an INVESTIGATE rating with HP Score 54/100. Investment score 53/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (92/100). 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
54
HP Score
54/ 100
Mixed
53
Investment Score
53/ 100
Moderate
100
Crime Score
100/ 100
Elevated
92
Walkability
92/ 100
Excellent
Transit & Bike
Transit 34Bike 75
Walk Score, out of 100
Valuation & Market
Sale Estimate£103,000
Rent Estimate (pcm)£550
Gross Yield6.41%
1y Growth-
3y Growth-1.1%
5y Growth+1.8%
10y Growth+2.8%
Last Sold Price£115,000 (2007-01-24)
Risk Overview
- Flood RiskUnknown
- SubsidenceSignificant
- RadonModerate
- MiningUnknown
- LandslideLow
- Air QualityLow
- NoiseModerate
Planning Activity
Recent Apps
0PO1 1RB
Approval Rate
-12mo
Development
low
- Pending26/00496/FULChange of use from five bedroom House in Multiple Occupation (Class C4), to eight bedroom/eight person house in Multiple Occupation (Sui generis)
- Pending26/00500/PNApplication for prior approval (Schedule 2, Part 3, Class MA) for change of use of from Class E to 1 no. flat on first floor
- Pending26/00482/CPEApplication for Certificate of Lawful Development for existing use as house in multiple occupation (Class C4)
Ownership
- Corporate Ownership52.8%
- Overseas OwnershipNo
- Lease Term Remaining104 yrs
- CovenantsNone
- Lease TypeLeasehold
- Last Ownership Change2007-01-24
- SourceLand Registry
Connectivity
Broadband (Standard)
16 Mbps
Mobile 4G/5G Coverage
EEThreeO2Vodafone
EV Charger
-
PTAL Rating
-
Area Profile
Median EarningsLocal authority£30,962
Population Density10,666 /km²
Owner Occupied8%
Age Distribution
0-15 14%16-64 83%65+ 3%
Schools Nearby
- St Edmund's Catholic School0.0 miOutstanding
- St John's Cathedral Catholic Primary School0.2 miGood
- Ark Charter Academy0.2 miArea grades2024
Inspected after Ofsted withdrew the single overall grade.
- Arundel Court Primary Academy and Nursery0.3 miReport card2026
Ofsted no longer awards a single overall grade.
3 of 13 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.
Comparables
- Windsor House, 1 Canal Walk-£75k-
- Windsor House, 1 Canal Walk-£59k-
- Windsor House, 1 Canal Walk-£59k-
- Windsor House, 1 Canal Walk-£89k-