Flat 40, Cosway Mansions, Shroton Street, London, NW1 6UE

UPRN:100022802467Flat/Maisonette1 bedsBuilt 1900-1929

LeaseholdCouncil Tax: -EPC: D (61)

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

Flat 40, Cosway Mansions, Shroton Street, London, NW1 6UE

HP Score

/ 100

Mixed

Verdict

3 days ago

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

Evidence

19 of 21 sources

Sale Estimate

£595,000

£565k - £624kHigh

Estimate

£595k

Range

£565k – £624k

Rent Estimate (pcm)

£2,950

£3k - £3k

Monthly

£2,950

Yield

5.95%

Verdict

Derived from HomePortfolio scores

Flat 40 earns an INVESTIGATE rating with HP Score 68/100. Investment score 68/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (99/100). 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)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 covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

68/ 100

Mixed

Investment Score

68/ 100

Moderate

Crime Score

69/ 100

Elevated

Walkability

99/ 100

Excellent

Transit & Bike

Transit 100Bike 76

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 30 Oct 2026

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

Valuation edge0/15
claims [AVM +0.0% (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 9 Oct 2026
- valuation_snapshotsestimate for 100022802467· as of 9 Oct 2026
Rental economics6.8/40
gross yield 5.9%; range width penalty ×0.89
- valuation_snapshotsrent estimate 2950/mo (range 2750-3200)· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -682/mo, -23% 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 30 Oct 2026
Seller motivationNot scored
context, not scored: 0 price cut(s), 242 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 30 Oct 2026
Risk & liquidity14.7/15
284 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

£446,000£684,000

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£595,000

At the asking price

Monthly rent£2,950/mo

Evidenced range £2,750-£3,200

Interest rate5.4%

Loan to value75%

Cash required: £199,550
Net cash flow: £34/mo
Cash on cash: 0.2%
Score at this price: 22

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.47 - 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 100022802467Valuation edge · as of 9 Oct 2026
valuation_snapshotsrent estimate 2950/mo (range 2750-3200)Rental economics · as of 9 Oct 2026 · verify before relying on this
listing_factsservice charge / ground rent from the advertStress margin · as of 30 Oct 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 30 Oct 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 2950/mo (range 2750-3200)
Seller motivation could not be scored
context, not scored: 0 price cut(s), 242 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£595,000

Rent Estimate (pcm)£2,950

Gross Yield5.95%

1y Growth-

3y Growth-9.6%

5y Growth-2.1%

10y Growth-0.7%

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

0NW1 6UE

Approval Rate

-12mo

Development

low

26/07283/FULL
Removal of the existing roof, dismantling of existing chimneys and pots and erection of a single storey mansard extension, reinstatement of chimneys and pots with accompanying external terrace, rooflights and balustrade to the rear elevation, and dormer windows to the front elevation.
Pending
26/07290/CLEUD
Confirmation that digging of trench to contain part of foundations is lawful and that planning permission 23/03464/FULL dated 30 October 2023 commenced before expiry of the three year time period.
Pending
26/07279/TDD
1 x dead sycamore and 1 x dead hawthorn - fell
Pending

View Planning Timeline