Flat 25, Alder House, 1 Swannell Way, London, NW2 1DR

UPRN:10093298088Flat/Maisonette1 bedsBuilt 2012-2021

LeaseholdCouncil Tax: Band DEPC: B (83)

Data freshness:Listing· freshPlanning· 4mo agoOwnership· freshEPC· 3mo agoRisk· 5mo agoCrime· freshConnectivity· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 4mo ago

Flat 25, Alder House, 1 Swannell Way, London, NW2 1DR

HP Score

/ 100

Mixed

Verdict

yesterday

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

Evidence

20 of 21 sources

Sale Estimate

£354,000

£336k - £372kHigh

Estimate

£354k

Range

£336k – £372k

Rent Estimate (pcm)

£1,300

£1k - £1k

Monthly

£1,300

Yield

4.27%

Verdict

Derived from HomePortfolio scores

Flat 25 earns an INVESTIGATE rating with HP Score 71/100. Investment score 66/100 reflects moderate fundamentals. Crime intensity is low. Walkability is limited (59/100). 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 company ownershipHM Land Registry covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

71/ 100

Mixed

Investment Score

66/ 100

Moderate

Crime Score

28/ 100

Moderate

Walkability

59/ 100

Moderate

Transit & Bike

Transit 44Bike 61

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesListing checked 13 Nov 2026

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

Valuation edge0/15
claims [AVM -3.1% (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 10093298088· as of 9 Nov 2026
Rental economics0/40
gross yield 4.3%; range width penalty ×0.82
- valuation_snapshotsrent estimate 1300/mo (range 1200-1450)· as of 9 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -714/mo, -55% 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 13 Nov 2026
Seller motivationNot scored
context, not scored: 1 price cut(s), 411 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
362 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

£274,000£419,500

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£365,000

At the asking price

Monthly rent£1,300/mo

Evidenced range £1,200-£1,450

Interest rate5.4%

Loan to value75%

Cash required: £119,050
Net cash flow: -£332/mo
Cash on cash: -3.3%
Score at this price: 15

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.06 - 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 10093298088Valuation edge · as of 9 Nov 2026
valuation_snapshotsrent estimate 1300/mo (range 1200-1450)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
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 1300/mo (range 1200-1450)
Seller motivation could not be scored
context, not scored: 1 price cut(s), 411 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£354,000

Rent Estimate (pcm)£1,300

Gross Yield4.27%

1y Growth-

3y Growth-1.3%

5y Growth-0.9%

10y Growth+0.3%

Last Sold Price£381,246 (2017-08-24)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0NW2 1DR

Approval Rate

-12mo

Development

low

26/4053/NMA
Non material amendment to planning permission 24/1318/FUL dated 26/09/2024 for 'Three storey rear extension to provide additional self storage floorspace (Use Class B8) with associated car and cycle parking, landscaping and other works ancillary to the development'. Amendments includes alter the wording of condition 12 to include a revised drainage strategy
Pending
26/3972/192
Erection of a rear outbuilding following demolition of the existing garage
Pending
26/3928/192
Single storey rear extension following demolition of the existing conservatory. New front porch with pitched roof. Roof extension involving hip to gable, rear dormer window with juliette balcony, 1no. front facing rooflight and side gable windows
Pending

View Planning Timeline