46 Brogan House, 9 St Josephs Street, London, SW8 4EU

UPRN:10094188697Purpose Built Flat2 bedsBuilt -

LeaseholdCouncil Tax: Band EEPC: B (86)

Data freshness:Listing· freshPrice Paid· freshPlanning· 4mo agoOwnership· freshEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· freshAmenities· 2mo agoArea· Census 2021Council Tax· 6mo ago

46 Brogan House, 9 St Josephs Street, London, SW8 4EU

HP Score

/ 100

Mixed

Verdict

yesterday

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

Evidence

19 of 21 sources

Sale Estimate

£780,000

£741k - £819kHigh

Estimate

£780k

Range

£741k – £819k

Rent Estimate (pcm)

£3,200

£3k - £4k

Monthly

£3,200

Yield

4.80%

Verdict

Derived from HomePortfolio scores

46 Brogan House earns an INVESTIGATE rating with HP Score 74/100. Investment score 73/100 reflects strong fundamentals. Crime intensity is moderate. Walkability is excellent (86/100). 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

HP Score

74/ 100

Mixed

Investment Score

73/ 100

High

Crime Score

52/ 100

Elevated

Walkability

86/ 100

Excellent

Transit & Bike

Transit 60Bike 76

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence1 independent sourceLead to verifyListing checked 5 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 edge2.5/15
claims [AVM -2.6% (HIGH), sold-comps +4.5%, £/sqft +4.6%] → 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 13 Oct 2026
- valuation_snapshotsestimate for 10094188697· as of 13 Oct 2026
- property_comparablessold-evidence family (implied value + £/sqft): 11 comps, dispersion 13.6%· as of 1 Nov 2026
Rental economics0/40
gross yield 4.8%; range width penalty ×0.82
- valuation_snapshotsrent estimate 3200/mo (range 2900-3500)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,153/mo, -36% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); fails the stress - earns nothing; leasehold with no service charge disclosed - the stress assumes GBP 0
- underwriting_assumptionscosts not disclosed by the advert· as of 5 Nov 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 0 price cut(s), 47 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 5 Nov 2026
Risk & liquidity14.6/15
268 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

£600,000£920,000

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£800,000

At the asking price

Monthly rent£3,200/mo

Evidenced range £2,900-£3,500

Interest rate5.4%

Loan to value75%

Cash required: £271,300
Net cash flow: -£485/mo
Cash on cash: -2.1%
Score at this price: 17

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.19 - below 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 10094188697Valuation edge · as of 13 Oct 2026
property_comparablessold-evidence family (implied value + £/sqft): 11 comps, dispersion 13.6%Valuation edge · as of 1 Nov 2026
valuation_snapshotsrent estimate 3200/mo (range 2900-3500)Rental economics · as of 13 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 5 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 5 Nov 2026

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 3200/mo (range 2900-3500)
Stress margin needs verification before you rely on it
costs not disclosed by 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£780,000

Rent Estimate (pcm)£3,200

Gross Yield4.80%

1y Growth-4.0%

3y Growth-15.5%

5y Growth-2.2%

10y Growth-1.6%

Last Sold Price£770,000 (2019-05-16)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0SW8 4EU

Approval Rate

-12mo

Development

low

26/03131/TCA
T1 - 1x Mimosa (Acacia dealbata), also known as a Wattle tree. To fell this tree and remove its stump and root system.
Pending
26/07311/OBS
Application under Section 73 of the Town and Country Planning Act 1990 for variations to Conditions 3 (Reserved Matters), 5 (Design Codes), 6 (Design Codes Landscaping Details), 7 (Parameter Plans), 8 (Land Uses), 11 (Maximum Floorspace Area in outline element for each Phase or Development Zone), 14 (Residential Mix), 18 (Phasing Plan), 20 (Car Parking), 35 (Sustainability and Energy) and 61 (Approved Drawings) of outline planning permission dated 28th February 2022 (ref. 2021/0414) for: ''the restoration, extension, alterations and conversion of the Power Station building to provide retail, residential flats, business, cultural, hotel and conference facilities, event space and incidental accommodation; the demolition of other buildings and development of the land surrounding the Power Station and adjacent/nearby sites to provide retail, restaurants bars and cafes, offices, hotel, residential, community and cultural space, assembly and leisure space, serviced apartments, an energy centre and basement plant; parking for cars, coaches, motorcycles and bicycles; new access and internal road system and servicing; 'off-site' highway works; works to the jetty and riverwall to facilitate river transport and fuel delivery; provision of open space and landscaping.'' (The application is accompanied by an Environmental Statement).
Pending
26/03026/DET
Approval of details pursuant to condition 6(Construction Method Statement) of Planning Permission 25/00995/FUL "Change of use of existing ground floor from café (Use Class E) to a 2-bed residential unit (Use Class C3) with provision of refuse, cycling storage, external amenity space, and boundary treatment." dated 22.09.2026
Pending

View Planning Timeline