Flat 33, Roxan Mews, 450 Portswood Road, Southampton, SO17 3SD

UPRN:10001310182Purpose Built Flat2 bedsBuilt 2007-2011

LeaseholdCouncil Tax: Band BEPC: B (83)

Data freshness:Listing· freshPlanning· 4mo agoOwnership· freshEPC· 3mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 1mo ago

Flat 33, Roxan Mews, 450 Portswood Road, Southampton, SO17 3SD

HP Score

/ 100

Strong

Verdict

today

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

Evidence

19 of 21 sources

Sale Estimate

£184,000

£175k - £193kHigh

Estimate

£184k

Range

£175k – £193k

Rent Estimate (pcm)

£1,100

£1k - £1k

Monthly

£1,100

Yield

7.33%

Verdict

Derived from HomePortfolio scores

Flat 33 earns an INVESTIGATE rating with HP Score 82/100. Investment score 72/100 reflects strong fundamentals. Crime intensity is low. Walkability is good (80/100). 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 NationsMarket 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

82/ 100

Strong

Investment Score

72/ 100

High

Crime Score

17/ 100

Moderate

Walkability

80/ 100

High

Transit & Bike

Transit 13Bike 72

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Reduced confidence2 independent sourcesListing checked 6 Nov 2026

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

Valuation edge2.5/15
claims [AVM +2.2% (HIGH), sold-comps +8.2%, £/sqft +8.2%] → measured edge +0.50pp 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 9 Nov 2026
- valuation_snapshotsestimate for 10001310182· as of 9 Nov 2026
- property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 18.2%· as of 24 Oct 2026
Rental economics18.7/40
gross yield 7.3%; range width penalty ×1.00
- valuation_snapshotsrent estimate 1100/mo (range 1050-1150)· as of 9 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -270/mo, -25% of rent (6.75% on a 75% loan; disclosed service charge and ground rent); fails the stress - earns nothing
- listing_factsservice charge / ground rent from the advert· as of 6 Nov 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 96 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 6 Nov 2026
Risk & liquidity14.7/15
180 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 sensitivity

£135,000£207,000

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£180,000

At the asking price

Monthly rent£1,100/mo

Evidenced range £1,050-£1,150

Interest rate5.4%

Loan to value75%

Cash required: £56,400
Net cash flow: £154/mo
Cash on cash: 3.3%
Score at this price: 36

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.81 - 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 10001310182Valuation edge · as of 9 Nov 2026
property_comparablessold-evidence family (implied value + £/sqft): 12 comps, dispersion 18.2%Valuation edge · as of 24 Oct 2026
valuation_snapshotsrent estimate 1100/mo (range 1050-1150)Rental economics · as of 9 Nov 2026 · verify before relying on this
listing_factsservice charge / ground rent from the advertStress margin · as of 6 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 6 Nov 2026

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 1100/mo (range 1050-1150)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 96 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. 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£184,000

Rent Estimate (pcm)£1,100

Gross Yield7.33%

1y Growth-2.8%

3y Growth+1.6%

5y Growth-1.4%

10y Growth+0.6%

Last Sold Price£175,000 (2020-04-03)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonModerate
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0SO17 3SD

Approval Rate

-12mo

Development

low

26/01262/P63A
Prior approval for replacement staircase
Pending
26/01192/FUL
Retrospective application for conversion of 2 flats to form 4 flats (2 x 1 bed 2 x bedsits)
Pending
26/01229/ADV
Installation of 4x internally illuminated fascia signs.
Pending

View Planning Timeline

Ownership

Corporate Ownership63.7%
Overseas OwnershipNo
Lease Term Remaining104 yrs
CovenantsRestrictive
Lease TypeLeasehold
Last Ownership Change2020-04-03
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

15 Mbps

Mobile 4G/5G Coverage

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£32,907

Population Density-

Owner Occupied35%

Age Distribution

0-15 10%16-64 82%65+ 8%

View Area Profile

Schools Nearby

Portswood Primary School
0.2 mi
Report card2026
Ofsted no longer awards a single overall grade.
Swaythling Primary School
0.3 mi
-
Bitterne Park Primary & Nursery School - Part of the Learning Federation Partnership of Schools
0.4 mi
Area grades2025
Inspected after Ofsted withdrew the single overall grade.
University of Southampton
0.5 mi
-

6 of 12 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

Roxan Mews, 450 Portswood Road
-
£175k
-
Roxan Mews, 450 Portswood Road
-
£150k
-
Roxan Mews, 450 Portswood Road
-
£158k
-
Roxan Mews, 450 Portswood Road
-
£136k
-

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