Ruby House, 1 Lombard Street, Portsmouth, PO1 2HT

UPRN:1775048948Mid Terrace House2 bedsBuilt before 1900

FreeholdCouncil Tax: Band FEPC: D (65)

Data freshness:Listing· freshPlanning· 7mo agoOwnership· freshEPC· 5mo agoRisk· 5mo agoCrime· freshConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 1mo ago

Ruby House, 1 Lombard Street, Portsmouth, PO1 2HT

HP Score

/ 100

Strong

Verdict

2 days ago

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Strong fundamentals; flood risk not assessed

Evidence

19 of 21 sources

Sale Estimate

£448,000

£426k - £471kHigh

Estimate

£448k

Range

£426k – £471k

Rent Estimate (pcm)

£2,750

£3k - £3k

Monthly

£2,750

Yield

7.76%

Verdict

Derived from HomePortfolio scores

Ruby House earns an INVESTIGATE rating with HP Score 77/100. Investment score 59/100 reflects moderate fundamentals. Crime intensity is low. Walkability is excellent (87/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. Tenure is freehold. 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 covenantsHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

77/ 100

Strong

Investment Score

59/ 100

Moderate

Crime Score

28/ 100

Moderate

Walkability

87/ 100

Excellent

Transit & Bike

Transit 23Bike 67

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Reduced confidence2 independent sourcesListing checked 11 Nov 2026

Fewer independent sources agree, or a component could not be scored.

Valuation edge0/15
claims [AVM +5.1% (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 14 Nov 2026
- valuation_snapshotsestimate for 1775048948· as of 14 Nov 2026
Rental economics21.7/40
gross yield 7.8%; range width penalty ×0.98
- valuation_snapshotsrent estimate 2750/mo (range 2600-2900)· as of 14 Nov 2026· verify before relying on this
Stress margin3.6/30
stressed cash flow +98/mo, +4% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); passes the stress
- underwriting_assumptionscosts not disclosed by the advert· as of 11 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 74 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 11 Nov 2026
Risk & liquidity14.6/15
204 sales/12mo in area; 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 sensitivityScores 70+ up to £329,500

£319,000£488,500

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£425,000

At the asking price

Monthly rent£2,750/mo

Evidenced range £2,600-£2,900

Interest rate5.4%

Loan to value75%

Cash required: £140,050
Net cash flow: £469/mo
Cash on cash: 4.0%
Score at this price: 40

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.92 - 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 1775048948Valuation edge · as of 14 Nov 2026
valuation_snapshotsrent estimate 2750/mo (range 2600-2900)Rental economics · as of 14 Nov 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 11 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 11 Nov 2026
property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth

Risks

What could kill this deal

Score confidence is reduced
fewer independent sources agree, or a component could not be scored
Rental economics needs verification before you rely on it
rent estimate 2750/mo (range 2600-2900)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 74 days on market; homes with a cut sold 0.2-0.3pp further below the cut ask, which is not an edge

Property risk deep-dive →

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. Set your walk-away price before viewing - above £329,500 the deal stops scoring well.
Computed by re-running the score at higher prices.
3. 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.
4. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Valuation & Market

Sale Estimate£448,000

Rent Estimate (pcm)£2,750

Gross Yield7.76%

1y Growth-

3y Growth-1.1%

5y Growth+1.8%

10y Growth+2.8%

Last Sold Price£289,000 (2011-03-21)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0PO1 2HT

Approval Rate

-12mo

Development

low

26/00469/FUL
Construction of rear extension at ground floor level to create one additional apartment, including relocation of refuse and cycle storage and provision of ground floor balconies and first floor terrace.
Pending
26/00432/NMA
Application for non-material amendment to planning permission 25/00841/FUL to seek approval of amended plans relating to external alterations
Approved
26/00422/DOC
Application to part discharge condition 14(i) (Piling Method Statement) of planning permission 25/00973/FUL
Pending

View Planning Timeline

Ownership

Corporate Ownership52.8%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease TypeFreehold
Last Ownership Change2011-03-21
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

16 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£30,962

Population Density8,353 /km²

Owner Occupied60%

Age Distribution

0-15 9%16-64 57%65+ 34%

View Area Profile

Schools Nearby

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

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

View All Schools

Comparables

View All

17 Lombard Street
-
£535k
-
27 Lombard Street
-
£625k
-
21 Lombard Street
-
£551k
-
21 Lombard Street
-
£365k
-

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