Flat 55, Ascent House, 35 Boulevard Drive, London, NW9 5QZ

UPRN:200142080Flat/MaisonetteBeds -Built 2012 onwards

LeaseholdCouncil Tax: Band HEPC: C (80)

Data freshness:Listing· freshPrice Paid· freshPlanning· 4mo agoOwnership· freshEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoSchools· freshAmenities· 2mo agoArea· Census 2021Council Tax· 4mo ago

Flat 55, Ascent House, 35 Boulevard Drive, London, NW9 5QZ

HP Score

/ 100

Strong

Verdict

yesterday

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

Evidence

19 of 21 sources

Sale Estimate

£698,000

£559k - £838kLow

Estimate

£698k

Range

£559k – £838k

Rent Estimate (pcm)

£3,550

£3k - £4k

Monthly

£3,550

Yield

4.73%

Verdict

Derived from HomePortfolio scores

Flat 55 earns an INVESTIGATE rating with HP Score 80/100. Investment score 69/100 reflects moderate fundamentals. Crime intensity is low. Walkability is good (75/100). 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

80/ 100

Strong

Investment Score

69/ 100

Moderate

Crime Score

16/ 100

Moderate

Walkability

75/ 100

High

Transit & Bike

Transit 43Bike 60

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 economics0/40
gross yield 4.7%; range width penalty ×0.89
- valuation_snapshotsrent estimate 3550/mo (range 3300-3850)· as of 9 Oct 2026· verify before relying on this
- listing_factslisting text signals condition works - budget before trusting any yield· as of 6 Nov 2026· verify before relying on this
Stress margin0/30
stressed cash flow -1,318/mo, -37% 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 6 Nov 2026· verify before relying on this
Risk & liquidity9.2/15
373 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£900,000

At the asking price

Monthly rent£3,550/mo

Evidenced range £3,300-£3,850

Interest rate5.4%

Loan to value75%

Cash required: £306,300
Net cash flow: -£580/mo
Cash on cash: -2.3%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.17 - 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_snapshotsrent estimate 3550/mo (range 3300-3850)Rental economics · as of 9 Oct 2026 · verify before relying on this
listing_factslisting text signals condition works - budget before trusting any yieldRental economics · as of 6 Nov 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 6 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 6 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 3550/mo (range 3300-3850)

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£698,000

Rent Estimate (pcm)£3,550

Gross Yield4.73%

1y Growth-

3y Growth-4.0%

5y Growth-1.2%

10y Growth+0.7%

Last Sold Price£500,000 (2010-03-05)

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0NW9 5QZ

Approval Rate

-12mo

Development

low

26/4002/192
Erection of a new rear outbuilding following demolition of the existing
Pending
26/3956/ADV
Installation of 1no. externally illuminated fascia sign (Part retrospective)
Pending
26/3905/ADV
Installation of internally illuminated suspended entrance sign
Pending

View Planning Timeline

Ownership

Corporate Ownership34.1%
Overseas OwnershipNo
Lease Term Remaining999+ yrs
CovenantsNone
Lease TypeLeasehold
Last Ownership Change2010-03-05
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

7 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£39,239

Population Density22,681 /km²

Owner Occupied21%

Age Distribution

0-15 13%16-64 84%65+ 3%

View Area Profile

Schools Nearby

St James' Catholic High School
0.3 mi
Report card2026
Ofsted no longer awards a single overall grade.
Blessed Dominic Catholic Primary School
0.3 mi
-
Saracens High School
0.3 mi
Good
North London Grammar School
0.4 mi
Inspected by ISI

6 of 13 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

Ascent House, 35 Boulevard Drive
-
£240k
-
Ascent House, 35 Boulevard Drive
-
£380k
-
Ascent House, 35 Boulevard Drive
-
£440k
-
Ascent House, 35 Boulevard Drive
-
£446k
-

Boundary data not available for this property

No registered title polygon, building footprint, or street match for this property yet.

Why: No HMLR INSPIRE / OSM footprint / OS Open USRN match for this UPRN

Source: HM Land Registry INSPIRE / OpenStreetMap / OS Open USRN