9 Mostyn Gardens, London, NW10 5QU

UPRN:202067007Mid Terrace HouseBeds -Built 1900-1929

Tenure: -Council Tax: Band EEPC: C (79)

Data freshness:Price Paid· freshEPC· 1mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· 1mo agoAmenities· 1mo agoArea· Census 2021Council Tax· 6mo ago

HP Score

/ 100

Mixed

Verdict

4 days ago

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

Evidence

19 of 21 sources

Sale Estimate

£1,393,000

£1.25M - £1.53MMedium

Estimate

£1.39M

Range

£1.25M – £1.53M

Rent Estimate (pcm)

£6,000

£5k - £7k

Monthly

£6,000

Yield

3.60%

Verdict

Derived from HomePortfolio scores

9 Mostyn Gardens earns an INVESTIGATE rating with HP Score 70/100. Investment score 68/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (95/100). 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)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

70/ 100

Mixed

Investment Score

68/ 100

Moderate

Crime Score

70/ 100

Elevated

Walkability

95/ 100

Excellent

Transit & Bike

Transit 57Bike 77

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 5 Nov 2026

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

Valuation edge-0.6/15
claims [AVM -43.6% (MEDIUM)] → measured edge -0.12pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp; asking more than 10% above the estimate (measured -0.33pp)
Market estimate used (MEDIUM confidence) · snapshot 10 Oct 2026
- valuation_snapshotsestimate for 202067007· as of 10 Oct 2026
Rental economics0/40
gross yield 3.6%; range width penalty ×0.82
- valuation_snapshotsrent estimate 6000/mo (range 5400-6550)· as of 10 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -4,158/mo, -69% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); fails the stress - earns nothing
- underwriting_assumptionscosts not disclosed by the advert· as of 5 Nov 2026
Seller motivationNot scored
context, not scored: 1 price cut(s), 27 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 & liquidity12.8/15
474 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

£1,500,000£2,000,000

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£2,000,000

At the asking price

Monthly rent£6,000/mo

Evidenced range £5,400-£6,550

Interest rate5.4%

Loan to value75%

Cash required: £755,050
Net cash flow: -£2,596/mo
Cash on cash: -4.1%
Score at this price: 12

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 0.89 - 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 202067007Valuation edge · as of 10 Oct 2026
valuation_snapshotsrent estimate 6000/mo (range 5400-6550)Rental economics · as of 10 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 5 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 5 Nov 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 6000/mo (range 5400-6550)
Seller motivation could not be scored
context, not scored: 1 price cut(s), 27 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. Ask the agent why the price was reduced and whether a previous sale fell through.
1 price cut(s) recorded on the listing history.
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£1,393,000

Rent Estimate (pcm)£6,000

Gross Yield3.60%

1y Growth-

3y Growth-5.8%

5y Growth+0.0%

10y Growth+1.1%

Last Sold Price£1,100,000 (2025-09-05)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0NW10 5QU

Approval Rate

-12mo

Development

low

26/07363/FULL
Demolition of existing rear/side extension and construction of a new extension together with new glazing and doors, and changing the existing rooflights to the rear roof slope with new rooflights.
Pending
26/07354/TDD
1 x Mimosa (rear): fell
Pending
26/07328/LBC
Installation of a temporary, reversible, full-height acoustic partition within the existing ground-floor nursery classroom, incorporating minimal fixings and protective perimeter detailing to preserve historic fabric.
Pending

View Planning Timeline