23 Jacob House, Aylward Street, Portsmouth, PO1 3FG

UPRN:1775112243Flat/Maisonette2 bedsBuilt 2007 onwards

LeaseholdCouncil Tax: -EPC: B (81)

Data freshness:Planning· 7mo ago

23 Jacob House, Aylward Street, Portsmouth, PO1 3FG

HP Score

Not available

Verdict

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

Evidence

17 of 21 sources

Sale Estimate

£210,000

£199k - £220kHigh

Estimate

£210k

Range

£199k – £220k

Rent Estimate (pcm)

£1,200

£1k - £1k

Monthly

£1,200

Yield

7.02%

Verdict

Derived from HomePortfolio scores

23 Jacob House earns an INVESTIGATE rating; it has no HP Score yet. Walkability is excellent (88/100). 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 addressWalk 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

No data

Investment Score

No data

Crime Score

No data

Walkability

88/ 100

Excellent

Transit & Bike

Transit 31Bike 77

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceLead to verifyListing checked 4 Nov 2026

This rests largely on a single source. Treat the score as a prompt to investigate, not a conclusion.

Check before relying on this score: leasehold with no service charge disclosed - the stress test assumes GBP 0. It ranks after every home whose inputs are verified.

Valuation edge0/15
claims [AVM +2.4% (HIGH)] → measured edge +0.00pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp
Market estimate used (HIGH confidence) · snapshot 13 Oct 2026
- valuation_snapshotsestimate for 1775112243· as of 13 Oct 2026
Rental economics15.4/40
gross yield 7.0%; range width penalty ×0.95
- valuation_snapshotsrent estimate 1200/mo (range 1100-1250)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -142/mo, -12% of rent (6.75% on a 75% loan; disclosed service charge and ground rent); fails the stress - earns nothing; leasehold with no service charge disclosed - the stress assumes GBP 0
- listing_factsservice charge / ground rent from the advert· as of 4 Nov 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 0 price cut(s), 57 days on market; homes with a cut sold 0.2-0.3pp further below the cut ask, which is not an edge
- portal_listingsprice_changes + first_published_date· as of 4 Nov 2026
Risk & liquidity5.6/15
valuation range width 10%
- property_intelligencetransactions_12mo

4 of 4 components scored. Ranks on gross yield, the stress margin, risk and disclosed facts. A pricing claim earns only its measured edge: today 0 for the market estimate and at most +0.5pp for sold evidence. The score itself is not yet checked against the outcomes of homes it scored.

Economics

What happens to your money

Price sensitivity

£154,000£235,500

The same scorer re-run at hypothetical asking prices, holding rent, comps and listing history constant. Not a prediction of what the seller would accept.

Your assumptions

Purchase price£205,000

At the asking price

Monthly rent£1,200/mo

Evidenced range £1,100-£1,250

Interest rate5.4%

Loan to value75%

Cash required: £64,400
Net cash flow: £139/mo
Cash on cash: 2.6%
Score at this price: 21

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.73 - clears the usual 1.25 test. These are your assumptions, not evidence: only the pre-filled rent and price come from the record.

Evidence

Where every number comes from

valuation_snapshotsestimate for 1775112243Valuation edge · as of 13 Oct 2026
valuation_snapshotsrent estimate 1200/mo (range 1100-1250)Rental economics · as of 13 Oct 2026 · verify before relying on this
listing_factsservice charge / ground rent from the advertStress margin · as of 4 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 4 Nov 2026
property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion
Rental economics needs verification before you rely on it
rent estimate 1200/mo (range 1100-1250)
Stress margin needs verification before you rely on it
service charge / ground rent from the advert

Plan

Before you offer

1. Get two written rental appraisals from local lettings agents.
The rent estimate rests on area-level evidence, not lettings on this street.
2. Treat the gap to the estimate as unproven - compare recent sold prices on the street yourself before pricing an offer around it.
On later completions, homes listed below their estimate sold at the same share of the asking price as the rest.
3. 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£210,000

Rent Estimate (pcm)£1,200

Gross Yield7.02%

1y Growth-

3y Growth-

5y Growth-

10y Growth-

Last Sold Price£170,000 (2009-02-27)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceUnknown
RadonUnknown
MiningUnknown
LandslideUnknown
Air QualityUnknown
NoiseUnknown

View Full Risk Report

Planning Activity

Recent Apps

-PO1 3FG

Approval Rate

-12mo

Development

26/00475/FUL
Replacement of principal entrance door
Pending
26/00476/LBC
Replacement of principal entrance door
Pending
26/00430/ADV
Display of 3no. Internally illuminated fascia signs and 1no. internally illuminated projecting sign
Pending

View Planning Timeline

Ownership

Corporate Ownership-
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeLeasehold
Last Ownership Change2009-02-27
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

15 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£30,962

Population Density-

Owner Occupied-

Age Distribution

View Area Profile

Schools Nearby

St George's Beneficial Church of England (Voluntary Controlled) Primary School
0.1 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.
University of Portsmouth
0.4 mi
-
The Portsmouth Grammar School
0.5 mi
Inspected by ISI
St Jude's CofE Primary School
0.6 mi
GoodConcerns

3 of 11 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

Jacob House Aylward Street
-
£145k
-
Jacob House Aylward Street
-
£210k
-
Jacob House Aylward Street
-
£163k
-
Jacob House Aylward Street
-
£216k
-

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