Flat 4, 46 Harrowby Street, London, W1H 5HT

UPRN:10033564321Flat/Maisonette1 bedsBuilt 1930-1949

Tenure: -Council Tax: Band EEPC: D (59)

Data freshness:Price Paid· freshPlanning· 4mo agoEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 1mo agoArea· Census 2021

Flat 4, 46 Harrowby Street, London, W1H 5HT

HP Score

/ 100

Mixed

Verdict

yesterday

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

Evidence

18 of 21 sources

Sale Estimate

£697,000

£627k - £766kMedium

Estimate

£697k

Range

£627k – £766k

Rent Estimate (pcm)

£3,000

£3k - £3k

Monthly

£3,000

Yield

7.20%

Verdict

Derived from HomePortfolio scores

Flat 4 earns an INVESTIGATE rating with HP Score 62/100. Investment score 64/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (100/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. 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)Defra 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

62/ 100

Mixed

Investment Score

64/ 100

Moderate

100

Crime Score

100/ 100

Elevated

100

Walkability

100/ 100

Excellent

Transit & Bike

Transit 100Bike 72

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesLead to verifyListing checked 6 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: the estimate sits 28% above the ask; lead to verify: 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 +28.3% (MEDIUM)] → 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 (MEDIUM confidence) · snapshot 9 Oct 2026
- valuation_snapshotsestimate for 10033564321· as of 9 Oct 2026
Rental economics14.7/40
gross yield 7.2%; range width penalty ×0.83; the estimate this rent rides on sits 28% above the ask - check the rent describes the advertised home
- valuation_snapshotsrent estimate 3000/mo (range 2700-3250)· as of 9 Oct 2026· verify before relying on this
- valuation_snapshotssale estimate 28% above the ask on the same snapshot - verify the rent describes this home· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -34/mo, -1% 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 6 Nov 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 0 price cut(s), 414 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 & liquidity12.9/15
64 sales/12mo in area; valuation range width 20%
- 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

£375,000£575,000

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£500,000

At the asking price

Monthly rent£3,000/mo

Evidenced range £2,700-£3,250

Interest rate5.4%

Loan to value75%

Cash required: £166,300
Net cash flow: £389/mo
Cash on cash: 2.8%
Score at this price: 28

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.78 - 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 10033564321Valuation edge · as of 9 Oct 2026
valuation_snapshotsrent estimate 3000/mo (range 2700-3250)Rental economics · as of 9 Oct 2026 · verify before relying on this
valuation_snapshotssale estimate 28% above the ask on the same snapshot - verify the rent describes this homeRental economics · as of 9 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 6 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_date

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 3000/mo (range 2700-3250)
Rental economics needs verification before you rely on it
sale estimate 28% above the ask on the same snapshot - verify the rent describes this home

Plan

Before you offer

1. Get two written rental appraisals from local lettings agents.
The market estimate this rent rides on sits far above the asking price, so the rent may describe a different home.
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£697,000

Rent Estimate (pcm)£3,000

Gross Yield7.20%

1y Growth-

3y Growth-11.2%

5y Growth-4.7%

10y Growth-0.9%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0W1H 5HT

Approval Rate

-12mo

Development

low

26/07384/FULL
Provision of an external central access corridor to connect blocks B, C and D.
Pending
26/07382/FULL
Use of the building as an embassy (sui generis)
Pending
26/07330/TCA
t 1 birch tree reduce canopy by 20% reason getting very tall t 2 plum formative prune reduce to shape by 20% & thin 15 % t3 magnolia reduce top by 2 meters down from property t4 laburnham reduce by 2 meters max yew tree crown reduce by 1 meter create tight shape on going maintenence
Pending

View Planning Timeline