Flat 10, Leinster Mansions, 1 Langland Gardens, London, NW3 6QB

UPRN:5002448Purpose Built Flat2 bedsBuilt 1983-1990

LeaseholdCouncil Tax: Band EEPC: C (79)

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

Flat 10, Leinster Mansions, 1 Langland Gardens, London, NW3 6QB

HP Score

/ 100

Strong

Verdict

2 days ago

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Strong fundamentals; flood risk not assessed

Evidence

18 of 21 sources

Sale Estimate

£801,000

£641k - £961kLow

Estimate

£801k

Range

£641k – £961k

Rent Estimate (pcm)

£3,250

£3k - £4k

Monthly

£3,250

Yield

5.20%

Verdict

Derived from HomePortfolio scores

Flat 10 earns an INVESTIGATE rating with HP Score 84/100. Investment score 64/100 reflects moderate fundamentals. Crime intensity is very low. Walkability is excellent (95/100). 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 NationsMarket 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 covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

84/ 100

Strong

Investment Score

64/ 100

Moderate

Crime Score

11/ 100

Low

Walkability

95/ 100

Excellent

Transit & Bike

Transit 71Bike 65

Walk Score, out of 100

Opportunity

Not scored as an opportunity

We will not put a number on this one.

headline score requires valuation_edge (estimate confidence LOW below scoring floor)

What we could establish

Rental economics1.3/40
gross yield 5.2%; range width penalty ×0.80
- valuation_snapshotsrent estimate 3250/mo (range 2900-3550)· as of 9 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -905/mo, -28% 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 28 Oct 2026· verify before relying on this
Risk & liquidity9.2/15
380 sales/12mo in area; valuation range width 40%
- property_intelligencetransactions_12mo

Withholding a score is deliberate. A number built on missing or stale inputs would look more certain than the evidence allows.

Economics

What happens to your money

Your assumptions

Purchase price£750,000

At the asking price

Monthly rent£3,250/mo

Evidenced range £2,900-£3,550

Interest rate5.4%

Loan to value75%

Cash required: £253,800
Net cash flow: -£281/mo
Cash on cash: -1.3%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.28 - 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_snapshotsrent estimate 3250/mo (range 2900-3550)Rental economics · as of 9 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 28 Oct 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 28 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
Valuation edge could not be scored
estimate confidence LOW below scoring floor
Rental economics needs verification before you rely on it
rent estimate 3250/mo (range 2900-3550)

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. Fill the valuation edge gap before relying on the score.
estimate confidence LOW below scoring floor
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£801,000

Rent Estimate (pcm)£3,250

Gross Yield5.20%

1y Growth-

3y Growth-2.2%

5y Growth-0.4%

10y Growth+0.3%

Last Sold Price£650,000 (2021-09-29)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0NW3 6QB

Approval Rate

-12mo

Development

low

2026/4818/T
REAR GARDEN: 1 x Lime (T1) - Reduce to previous, most recent pruning points, (approx. 2m - 3m).
Pending
2026/4790/P
Proposed first floor infill extension.
Pending
2026/4772/T
DD 5 Day Notice REAR GARDEN: 1 x Sycamore (T1) - Fell to ground level.
Pending

View Planning Timeline