Flat 2, Callow House, 12 Medawar Drive, London, NW7 1UA

UPRN:10094710552Flat/MaisonetteBeds -Built 2022

LeaseholdCouncil Tax: Band DEPC: B (83)

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

Flat 2, Callow House, 12 Medawar Drive, London, NW7 1UA

HP Score

/ 100

Mixed

Verdict

yesterday

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

Evidence

19 of 21 sources

Sale Estimate

£472,000

£378k - £567kLow

Estimate

£472k

Range

£378k – £567k

Rent Estimate (pcm)

£2,050

£2k - £2k

Monthly

£2,050

Yield

6.56%

Verdict

Derived from HomePortfolio scores

Flat 2 earns an INVESTIGATE rating with HP Score 71/100. Investment score 69/100 reflects moderate fundamentals. Crime intensity is low. Walkability is limited (32/100). 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

71/ 100

Mixed

Investment Score

69/ 100

Moderate

Crime Score

21/ 100

Moderate

Walkability

32/ 100

Mixed

Transit & Bike

Transit 16Bike 28

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 economics11.3/40
gross yield 6.6%; range width penalty ×0.91; the estimate this rent rides on sits 21% above the ask - check the rent describes the advertised home
- valuation_snapshotsrent estimate 2050/mo (range 1900-2200)· as of 14 Nov 2026· verify before relying on this
- valuation_snapshotssale estimate 21% above the ask on the same snapshot - verify the rent describes this home· as of 14 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -338/mo, -16% 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 10 Nov 2026
Risk & liquidity9.2/15
249 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£375,000

At the asking price

Monthly rent£2,050/mo

Evidenced range £1,900-£2,200

Interest rate5.4%

Loan to value75%

Cash required: £122,550
Net cash flow: £154/mo
Cash on cash: 1.5%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.62 - 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 2050/mo (range 1900-2200)Rental economics · as of 14 Nov 2026 · verify before relying on this
valuation_snapshotssale estimate 21% above the ask on the same snapshot - verify the rent describes this homeRental economics · as of 14 Nov 2026 · verify before relying on this
listing_factsservice charge / ground rent from the advertStress margin · as of 10 Nov 2026
portal_listingsprice_changes + first_published_dateSeller motivation · as of 10 Nov 2026
property_intelligencetransactions_12moRisk & liquidity

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 2050/mo (range 1900-2200)

Plan

Before you offer

1. Get two written rental appraisals from local lettings agents.
The market estimate this rent rides on sits far above the asking price, so the rent may describe a different home.
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£472,000

Rent Estimate (pcm)£2,050

Gross Yield6.56%

1y Growth-

3y Growth+1.4%

5y Growth+1.9%

10y Growth+1.2%

Last Sold Price£114,476 (2019-12-23)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0NW7 1UA

Approval Rate

-12mo

Development

low

26/3979/FUL
Installation of 2no. air source heat pumps to the rear within associated acoustic fencing and access gate
Pending
26/3927/PNH
Single Storey Rear Extension with a depth of 6.00 metres, a maximum height of 3.53 metres and an eaves height of 3.00 metres
Pending
26/3878/PNH
Single storey rear extension with a proposed depth of 6 metres, maximum height of 3 metres and eaves height of 2.8 metres following demolition of existing outbuilding.
Pending

View Planning Timeline