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419 Blackfen Road, Sidcup, DA15 9NN

UPRN:100020246306Detached House4 bedsBuilt 1930-1949
FreeholdCouncil Tax: Band EEPC: E (51)
Data freshness:Listing· freshListing: fresh, refreshed 2d ago (2026-11-02T04:00:05.857782+00:00)Price Paid· freshPrice Paid: fresh, refreshed 3d ago (2026-11-01T02:05:22.552650+00:00)Planning· 3mo agoPlanning: ageing, refreshed 3mo ago (2026-08-20T13:58:02.720176+00:00)EPC· 6mo agoEPC: stale, refreshed 6mo ago (2026-05-20T10:58:39.129138+00:00)Risk· 5mo agoRisk: stale, refreshed 5mo ago (2026-06-18T00:00:00+00:00)Connectivity· 1mo agoConnectivity: ageing, refreshed 1mo ago (2026-10-03T06:43:10.905825+00:00)Amenities· 1mo agoAmenities: ageing, refreshed 1mo ago (2026-09-23T00:00:00+00:00)Area· Census 2021Area: static reference data (Census 2021); authoritative and does not refreshCouncil Tax· 6mo agoCouncil Tax: stale, refreshed 6mo ago (2026-05-20T09:33:12.870431+00:00)
419 Blackfen Road, Sidcup, DA15 9NN

HP Score

Strong
Verdict
2 days ago
  • Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.

    Strong fundamentals; flood risk not assessed

Evidence
20 of 21 sources
Sale Estimate
£618,000
£587k - £649kHigh
Estimate
£618k
Range
£587k – £649k
Rent Estimate (pcm)
£2,200
£2k - £2k
Monthly
£2,200
Yield
4.27%

Verdict

Derived from HomePortfolio scores

419 Blackfen Road earns an INVESTIGATE rating with HP Score 75/100. Investment score 58/100 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 freehold. 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
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HP Score
75/ 100
Strong
Investment Score
58/ 100
Moderate
Crime Score
20/ 100
Moderate
Walkability
75/ 100
High
Transit & Bike
Transit 33Bike 57
Walk Score, out of 100

Valuation & Market

Sale Estimate£618,000
Rent Estimate (pcm)£2,200
Gross Yield4.27%
1y Growth-27.1%
3y Growth+0.6%
5y Growth+1.8%
10y Growth+2.6%
Last Sold Price£470,000 (2019-03-06)
View Market Details

Risk Overview

  • Flood RiskUnknown
  • SubsidenceSignificant
  • RadonLow
  • MiningModerate
  • LandslideModerate
  • Air QualityLow
  • NoiseModerate
View Full Risk Report

Planning Activity

Recent Apps
0DA15 9NN
Approval Rate
-12mo
Development
low
  • 25/01592/FUL01
    Application to approve details of condition 4 (Parking Facilities) and 6 (Sustainability) pursuant to application 25/01592/FUL for Change of Use of existing integral garage to Studio Flat (Class C3) along with associated refuse and cycle storage.
    Pending
  • 26/01990/FUL
    Single storey front and rear extension and first floor rear extension.
    Pending
  • 26/01954/FUL
    Erection of a single storey rear extension and conversion of garage to habitable accommodation and store.
    Pending
View Planning Timeline

Ownership

  • Corporate Ownership64%
  • Overseas OwnershipNo
  • Lease Term Remaining-
  • CovenantsRestrictive
  • Lease TypeFreehold
  • Last Ownership Change2019-03-06
  • 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£36,883
Population Density4,699 /km²
Owner Occupied74%
Age Distribution
0-15 20%16-64 63%65+ 17%
View Area Profile

Schools Nearby

  • Blackfen School for Girls
    0.1 mi
    Area grades2025

    Inspected after Ofsted withdrew the single overall grade.

  • Sherwood Park Primary School
    0.2 mi
    Good
  • Bexley Grammar School
    0.5 mi
    Outstanding
  • Danson Primary School
    0.5 mi
    -

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

View All Schools

Comparables

View All
  • 417 Blackfen Road
    -
    £580k
    -
  • 405 Blackfen Road
    -
    £455k
    -
  • 423 Blackfen Road
    -
    £230k
    -
  • 405B Blackfen Road
    -
    £470k
    -