12 Broadmayne, Portland Street, London, SE17 2DS

UPRN:200003426326-Beds -Built -

Tenure: -Council Tax: Band BEPC: -

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

12 Broadmayne, Portland Street, London, SE17 2DS

HP Score

/ 100

Mixed

Verdict

2 days ago

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

Evidence

17 of 21 sources

Sale Estimate

£262,000

£210k - £315kLow

Estimate

£262k

Range

£210k – £315k

Rent Estimate (pcm)

-- - --

Verdict

Derived from HomePortfolio scores

12 Broadmayne earns an INVESTIGATE rating with HP Score 60/100. Investment score 64/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is excellent (96/100). 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 SourcesPortal listingsOfcom Connected NationsOfcom mobile coverageMarket 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 leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

60/ 100

Mixed

Investment Score

64/ 100

Moderate

100

Crime Score

100/ 100

Elevated

Walkability

96/ 100

Excellent

Transit & Bike

Transit 63Bike 77

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)
headline score requires rental_economics (no rent estimate available)

What we could establish

Risk & liquidity9.2/15
158 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.

Evidence

Where every number comes from

portal_listingsprice_changes + first_published_dateSeller motivation · as of 12 Nov 2026
property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth Valuation methodology

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 could not be scored
no rent estimate available

Plan

Before you offer

1. Fill the valuation edge gap before relying on the score.
estimate confidence LOW below scoring floor
2. Fill the rental economics gap before relying on the score.
no rent estimate available
3. Fill the stress margin gap before relying on the score.
no rent to stress
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£262,000

Rent Estimate (pcm)-

Gross Yield-

1y Growth-

3y Growth-2.1%

5y Growth-1.7%

10y Growth+0.9%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningModerate
LandslideLow
Air QualityLow
NoiseLow

View Full Risk Report

Planning Activity

Recent Apps

0SE17 2DS

Approval Rate

-12mo

Development

low

62/AP/5730
The erection and retention for a limted period only of a single storey structure for storage purposes at the rear of no. 142 Camberwell Road, Camberwell
Approved
26/AP/3280
Details of Condition 15 'Kitchen Extract' as required by planning permission 24/AP/2385 (as amended by 25/AP/1970 and 26/AP/2404), which gave consent for: "Variation of Condition 1 (Approved Plans) for planning permission ref no. 23/AP/1991 [...] The amendments sought by this application are: - Façade alterations - Alteration to accessible room sizes - Alterations to position of room sizes and layouts - Alterations to the plan across all levels - Alterations to the roof with relocation of biodiverse roof and provision of railings above the mezzanine for safe maintenance".
Pending
26/AP/3269
Certificate of Lawful Development (Proposed) for a single-storey rear extension
Pending

View Planning Timeline

Ownership

Corporate Ownership33.7%
Overseas OwnershipNo
Lease Term Remaining-
CovenantsNone
Lease Type-
Last Ownership Change-
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

17 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£43,006

Population Density18,634 /km²

Owner Occupied9%

Age Distribution

0-15 17%16-64 76%65+ 7%

View Area Profile

Schools Nearby

Robert Browning Primary School
0.0 mi
Report card2025
Ofsted no longer awards a single overall grade.
South Bank University Academy
0.2 mi
Report card2026
Ofsted no longer awards a single overall grade.
St Peter's Church of England Primary School
0.2 mi
Good
The Autism Project - CareTrade
0.2 mi
-

2 of 12 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

Broadmayne Portland Street
-
£180k
-
Broadmayne Portland Street
-
£285k
-
Broadmayne Portland Street
-
£227k
-
Broadmayne Portland Street
-
£200k
-

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