Upper Floor, 14 Portsdown Avenue, London, NW11 0ND

UPRN:200133748Flat/MaisonetteBeds -Built 1900-1929

Tenure: -Council Tax: -EPC: E (54)

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

Upper Floor, 14 Portsdown Avenue, London, NW11 0ND

HP Score

/ 100

Strong

Verdict

today

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

Evidence

18 of 21 sources

Sale Estimate

£571,000

£457k - £685kLow

Estimate

£571k

Range

£457k – £685k

Rent Estimate (pcm)

£2,000

£2k - £2k

Monthly

£2,000

Yield

4.36%

Verdict

Derived from HomePortfolio scores

Upper Floor earns an INVESTIGATE rating with HP Score 81/100. Investment score 69/100 reflects moderate fundamentals. Crime intensity is low. Walkability is excellent (90/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. 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)Defra 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

81/ 100

Strong

Investment Score

69/ 100

Moderate

Crime Score

20/ 100

Moderate

Walkability

90/ 100

Excellent

Transit & Bike

Transit 52Bike 66

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 4.4%; range width penalty ×0.75
- valuation_snapshotsrent estimate 2000/mo (range 1750-2200)· as of 10 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -980/mo, -49% 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 & liquidity9.3/15
178 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£550,000

At the asking price

Monthly rent£2,000/mo

Evidenced range £1,750-£2,200

Interest rate5.4%

Loan to value75%

Cash required: £183,800
Net cash flow: -£472/mo
Cash on cash: -3.1%
Score at this price: -

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.08 - 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 2000/mo (range 1750-2200)Rental economics · as of 10 Oct 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

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 2000/mo (range 1750-2200)

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. Fill the valuation edge gap before relying on the score.
estimate confidence LOW below scoring floor
4. 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£571,000

Rent Estimate (pcm)£2,000

Gross Yield4.36%

1y Growth-

3y Growth+2.2%

5y Growth+0.5%

10y Growth+1.0%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0NW11 0ND

Approval Rate

-12mo

Development

low

26/3965/S73
Variation of condition 1 (Approved Plans) of planning permission reference 24/4689/S73 dated 13/01/25 (variation to 23/5146/FUL) for 'Upward extension to provide additional Class E office space at third floor level. External alterations at 1st and 2nd floors including installation of windows to side and rear elevations.' Variation to include replacement of 1no. window to first floor west elevation with new access door to flat roof
Pending
TCP/0685/26
1 x Pear (applicants ref. T1) - Approximately 11.00m. Reduce back to previous and most recent points of reduction (approximately 1.20m). Thin crown density by approximately 20%. Remove major dead wood throughout crown. Laurel Hedge (applicants ref. G1) - Approximately 7.00m. Reduce height by approximately 1.20-1.50m.
Pending
TCP/0682/26
1 x Mature Holly (applicants ref. T1) - Approximately 6.00m. Fell to ground level. 1 x Mature Buxus (applicants ref. T2) - Approximately 4.00m. Fell to ground level. 1 x Mature Yew (applicants ref. T3) - Approximately 7.00m. Reduce lateral and su lateral growth back to clear the building by a minimum of 1.25m to control encroachment.
Pending

View Planning Timeline

Ownership

Corporate Ownership47.4%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsRestrictive
Lease Type-
Last Ownership Change-
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

16 Mbps

Mobile 4G/5G Coverage

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£39,239

Population Density10,143 /km²

Owner Occupied53%

Age Distribution

0-15 26%16-64 61%65+ 13%

View Area Profile

Schools Nearby

Shiras Devorah High School
0.1 mi
Requires improvement
Lubavitch Yeshiva Ketanah of London
0.2 mi
Report card2026
Ofsted no longer awards a single overall grade.
Menorah Primary School for Boys
0.4 mi
-
Menorah Primary School for Girls
0.4 mi
Outstanding

5 of 9 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

14 Portsdown Avenue
-
£490k
-
14 Portsdown Avenue
-
£125k
-

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