12 Capstan House, High Street, Cosham, Portsmouth, PO6 3EQ

UPRN:1775100900Flat/Maisonette2 bedsBuilt -

LeaseholdCouncil Tax: Band CEPC: -

Data freshness:Planning· 7mo agoOwnership· freshRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 1mo ago

12 Capstan House, High Street, Cosham, Portsmouth, PO6 3EQ

HP Score

/ 100

Mixed

Verdict

today

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Mixed signals - investigate

Evidence

19 of 21 sources

Sale Estimate

£170,000

£162k - £179kHigh

Estimate

£170k

Range

£162k – £179k

Rent Estimate (pcm)

£950

£850 - £1k

Monthly

£950

Yield

8.14%

Verdict

Derived from HomePortfolio scores

12 Capstan House earns an INVESTIGATE rating with HP Score 55/100. Investment score 53/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (89/100). 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 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

HP Score

55/ 100

Mixed

Investment Score

53/ 100

Moderate

100

Crime Score

100/ 100

Elevated

Walkability

89/ 100

Excellent

Transit & Bike

Transit 37Bike 69

Walk Score, out of 100

Opportunity

Not scored as an opportunity

We will not put a number on this one.

listing is 'Sold subject to contract' - sale already progressing, not an actionable opportunity

Withholding a score is deliberate. A number built on missing or stale inputs would look more certain than the evidence allows.

Economics

What happens to your money

Your assumptions

Purchase price£140,000

At the asking price

Monthly rent£950/mo

Evidenced range £850-£1,000

Interest rate5.4%

Loan to value75%

Cash required: £43,600
Net cash flow: £185/mo
Cash on cash: 5.1%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 2.01 - clears the usual 1.25 test. These are your assumptions, not evidence: only the pre-filled rent and price come from the record.

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion

Property risk deep-dive →flood, subsidence, crime, environment - the full domain

Plan

Before you offer

1. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Every step above was generated from a specific gap or flag in the evidence - no generic advice, no invented tasks.

Valuation & Market

Sale Estimate£170,000

Rent Estimate (pcm)£950

Gross Yield8.14%

1y Growth-

3y Growth-0.8%

5y Growth+1.8%

10y Growth+2.4%

Last Sold Price£122,500 (2014-08-01)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningLow
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0PO6 3EQ

Approval Rate

-12mo

Development

low

26/00447/CPL
Application for Certificate of Lawful Development for the proposed alterations to roof to include hip to gable buildup, construction of flat-roof dormer windows to rear roofslopes and roof-lights to front roofslopes
Pending
26/00410/DOC
Application to discharge conditions 3 (Materials), 7 (Sound Insulation) and 10 (CEMP) of planning permission 21/01774/FUL
Pending
26/00399/HOU
Construction of single storey rear extension with raised decking area and alterations to roof include hip to gable buildup and dormer windows to rear roofslopes
Pending

View Planning Timeline

Ownership

Corporate Ownership54.4%
Overseas OwnershipNo
Lease Term Remaining75 yrs
CovenantsRestrictive
Lease TypeLeasehold
Last Ownership Change2014-08-01
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

18 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£30,962

Population Density-

Owner Occupied34%

Age Distribution

0-15 25%16-64 64%65+ 11%

View Area Profile

Schools Nearby

Medina Primary School
0.3 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.
Portsdown Primary School
0.3 mi
Good
Court Lane Junior Academy
0.4 mi
Good
Court Lane Infant Academy
0.4 mi
Good

2 of 9 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

Capstan House High Street
-
£150k
-
Capstan House High Street
-
£165k
-
Capstan House High Street
-
£140k
-
Capstan House High Street
-
£170k
-

Boundary data not available for this property

No registered title polygon, building footprint, or street match for this property yet.

Why: No HMLR INSPIRE / OSM footprint / OS Open USRN match for this UPRN

Source: HM Land Registry INSPIRE / OpenStreetMap / OS Open USRN