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21A Harpenden Road, London, SE27 0AG

UPRN:100021849079Converted Flat2 bedsBuilt 1900-1929
LeaseholdCouncil Tax: Band CEPC: D (67)
Data freshness:Listing· freshListing: fresh, refreshed 2d ago (2026-11-12T04:00:11.272290+00:00)Planning· 1mo agoPlanning: ageing, refreshed 1mo ago (2026-10-11T06:49:41.226436+00:00)Ownership· freshOwnership: fresh, refreshed 4d ago (2026-11-10T13:26:34.020141+00:00)Risk· 5mo agoRisk: stale, refreshed 5mo ago (2026-06-18T00:00:00+00:00)Crime· freshCrime: fresh, refreshed 3d ago (2026-11-11T13:01:03.839912+00:00)Connectivity· 1mo agoConnectivity: ageing, refreshed 1mo ago (2026-10-03T06:43:10.905825+00:00)Amenities· 2mo agoAmenities: ageing, refreshed 2mo ago (2026-09-23T00:00:00+00:00)Area· Census 2021Area: static reference data (Census 2021); authoritative and does not refreshCouncil Tax· 1mo agoCouncil Tax: ageing, refreshed 1mo ago (2026-10-10T09:07:32.125679+00:00)
21A Harpenden Road, London, SE27 0AG

HP Score

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

    Mixed signals - investigate

Evidence
20 of 21 sources
Sale Estimate
£471,000
£447k - £495kHigh
Estimate
£471k
Range
£447k – £495k
Rent Estimate (pcm)
£2,000
£2k - £2k
Monthly
£2,000
Yield
4.80%

Verdict

Derived from HomePortfolio scores

21A Harpenden Road earns an INVESTIGATE rating with HP Score 57/100. Investment score 66/100 reflects moderate fundamentals. Crime intensity is elevated. Walkability is limited (35/100). 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 covenantsHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS
HP Score
57/ 100
Mixed
Investment Score
66/ 100
Moderate
Crime Score
71/ 100
Elevated
Walkability
35/ 100
Mixed
Transit & Bike
Transit 69Bike 61
Walk Score, out of 100

Valuation & Market

Sale Estimate£471,000
Rent Estimate (pcm)£2,000
Gross Yield4.80%
1y Growth+72.2%
3y Growth+3.2%
5y Growth+0.9%
10y Growth+2.0%
Last Sold Price£475,000 (2021-09-07)

Risk Overview

  • Flood RiskUnknown
  • SubsidenceSignificant
  • RadonLow
  • MiningModerate
  • LandslideLow
  • Air QualityLow
  • NoiseModerate

Planning Activity

Recent Apps
1SE27 0AG
Approval Rate
100%12mo
Development
low
  • 26/03300/TCA
    G1 - Conifer hedge - reduce height and face up 8m in height. Reduce height by 1m from 8m to 7m. Face up the sides, trimming back to a tidy, even line. A conifer hedge on the rear boundary of the garden. The hedge has outgrown a manageable height for its position, and the proposed works return it to a size and form that can be maintained, while retaining it in full as a boundary screen. T1 - Olive - crown reduce 6m in height. Reduce height by 1m from 6m to 5m. Reduce laterals by 1m from 5m to 4m on all compass points. An olive in the rear garden. The proposed reduction lowers the size and end-weight of the crown and keeps the tree in proportion with its position in the garden, while retaining its natural form. T2 - Bay - crown reduce 7m in height. Reduce height by 1.5m from 7m to 5.5m. Reduce laterals by 1m from 4m to 3m on all compass points. An evergreen bay standing in the centre of the rear garden. The proposed reduction brings the crown back to a size appropriate to its position and keeps a balanced, well-formed shape. T3 - Plum - crown reduce 8m in height. Reduce height by 1.5m from 8m to 6.5m. Reduce laterals by 1.5m from 7m to 5.5m on all compass points. A purple-leaved plum in the rear garden, close to the house. The proposed reduction lowers the height and spread of the crown and reduces end-weight on the outer branches. T4 - Birch - fell 9m in height. Fell tree to just above ground level. A birch in the front garden, growing close to the house frontage and to the larger birch T5. Felling is proposed at the owner's request to reduce the number of trees in the restricted front garden, allowing T5 to be retained as the principal tree in the street scene. It is also in close proximity to the boundary wall and removal will prevent damage. A native pollinator will be planted as a replacement. T5 - Birch - crown reduce 10m in height. Reduce height by 2m from 10m to 8m. Reduce laterals by 1.5m from 8m to 6.5m on all compass points. A semi-matur
    Pending
  • 26/03180/FUL
    Change of use from small HMO (house in multiple accommodation) (Use Class C4) to large HMO (sui generis)
    Pending
  • 26/03149/LDCP
    Certificate of Lawful Development (Proposed) with respect to formation of a vehicular crossover and dropped kerb with associated works.
    Pending

Ownership

  • Corporate Ownership67.6%
  • Overseas OwnershipNo
  • Lease Term Remaining999+ yrs
  • CovenantsRestrictive
  • Lease TypeLeasehold
  • Last Ownership Change2021-09-07
  • SourceLand Registry

Connectivity

Broadband (Standard)
17 Mbps
Mobile 4G/5G Coverage
EEThreeO2Vodafone
EV Charger
-
PTAL Rating
-

Area Profile

Median EarningsLocal authority£43,666
Population Density11,093 /km²
Owner Occupied35%
Age Distribution
0-15 16%16-64 77%65+ 7%

Schools Nearby

  • The Elmgreen School
    0.2 mi
    GoodConcerns
  • Hitherfield Primary School
    0.3 mi
    Area grades2024

    Inspected after Ofsted withdrew the single overall grade.

  • Streatham Wells Primary
    0.4 mi
    Outstanding
  • Fenstanton Primary School
    0.4 mi
    Report card2026

    Ofsted no longer awards a single overall grade.

3 of 10 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

Comparables

View All
  • 3 Harpenden Road
    -
    £775k
    -
  • Flat A, 29 Harpenden Road
    -
    £450k
    -
  • 21 Harpenden Road
    -
    £465k
    -
  • 21A Harpenden Road
    -
    £475k
    -