Flat 6N, Oxford and Cambridge Mansions, Old Marylebone Road, London, NW1 5EG

UPRN:100023071276Purpose Built Flat2 bedsBuilt 1900-1929

LeaseholdCouncil Tax: -EPC: E (53)

Data freshness:Listing· freshPlanning· 4mo agoOwnership· freshEPC· 6mo agoRisk· 5mo agoCrime· freshConnectivity· 1mo agoSchools· 1mo agoAmenities· 2mo agoArea· Census 2021

Flat 6N, Oxford and Cambridge Mansions, Old Marylebone Road, London, NW1 5EG

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

£612,000

£582k - £643kHigh

Estimate

£612k

Range

£582k – £643k

Rent Estimate (pcm)

£3,050

£3k - £3k

Monthly

£3,050

Yield

6.37%

Verdict

Derived from HomePortfolio scores

Flat 6N earns an INVESTIGATE rating with HP Score 60/100. Investment score 60/100 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)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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

60/ 100

Mixed

Investment Score

60/ 100

Moderate

100

Crime Score

100/ 100

Elevated

Walkability

99/ 100

Excellent

Transit & Bike

Transit 100Bike 74

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesLead to verifyListing checked 13 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 edge0/15
claims [AVM +6.0% (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 Nov 2026
- valuation_snapshotsestimate for 100023071276· as of 9 Nov 2026
Rental economics9.9/40
gross yield 6.4%; range width penalty ×0.90
- valuation_snapshotsrent estimate 3050/mo (range 2850-3300)· as of 9 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -314/mo, -10% 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 13 Nov 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 2 price cut(s), unknown 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 13 Nov 2026
Risk & liquidity14.6/15
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

£431,000£661,000

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£575,000

At the asking price

Monthly rent£3,050/mo

Evidenced range £2,850-£3,300

Interest rate5.4%

Loan to value75%

Cash required: £192,550
Net cash flow: £171/mo
Cash on cash: 1.1%
Score at this price: 24

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.57 - 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 100023071276Valuation edge · as of 9 Nov 2026
valuation_snapshotsrent estimate 3050/mo (range 2850-3300)Rental economics · as of 9 Nov 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 13 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 13 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 3050/mo (range 2850-3300)
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. Ask the agent why the price was reduced and whether a previous sale fell through.
2 price cut(s) recorded on the listing history.
3. 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.
4. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Valuation & Market

Sale Estimate£612,000

Rent Estimate (pcm)£3,050

Gross Yield6.37%

1y Growth+2.4%

3y Growth-9.6%

5y Growth-2.1%

10y Growth-0.7%

Last Sold Price£580,000 (2024-04-18)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseHigh

View Full Risk Report

Planning Activity

Recent Apps

0NW1 5EG

Approval Rate

-12mo

Development

low

26/07585/ADFULL
Details of refuse & recycling storage pursuant to condition 3 of planning permission dated 17 February 2023 (RN: 22/08088/FULL).
Pending
26/07543/FULL
Erection of a mansard roof extension to provide an additional bedroom to the single-family dwelling, together with replacement of the existing front door with a painted solid timber panelled door (renewal of planning permission 16/04632/FULL, allowed on appeal on 8 June 2017 APP/X5990/W/3172534).
Pending
26/07538/ADLBC
Detailed drawings showing the water proofing system to be used for the pavement vaults pursuant to condition 3 of listed building consent dated 12th February 2026 (RN 25/07623/LBC)
Pending

View Planning Timeline