Postcode record · Enfield
N21 3HD.
N21 3HD has 35 known premises and 36 planning records — 22 approved of 30 decided (73.3%). 28 EPC records.
Postcode N21 3HD · boundary not held, centred on the postcodeApprovedRefusedOther36 exact2 approximate38 on the map — every match
At a glance · this postcodeEnfield profile →
35
Premises
known addresses (UPRNs)
36
Applications
30 decided
73.3%
Approval rate
22 approved · 8 refused
28
EPC records
ratings A 1 · B 12 · C 8 · D 4 · E 3
38
Mapped applications
inside the postcode shape
Postcode unit boundary from Ordnance Survey; premises and applications inside it. Aggregates describe the area, not any single premises.
Property
What is it?
N21 3HD has 35 known premises and 36 planning records — 22 approved of 30 decided (73.3%). 28 EPC records.
Premises (18 of 35 shown)
Name
Details
UPRN 207007846
UPRN 207011803
UPRN 207011965
UPRN 207013378
UPRN 207013379
UPRN 207013380
UPRN 207013381
UPRN 207013382
UPRN 207013383
UPRN 207013384
UPRN 207007846
UPRN 207011803
UPRN 207011965
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UPRN 207013378
UPRN 207013379
UPRN 207013380
UPRN 207013381
UPRN 207013382
UPRN 207013383
UPRN 207013384
Planning
What happened?
36 planning applications across the postcode; 22 approved of 30 decided (73.3%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey side extension.
31 Highfield Road London N21 3HD · premises record
Householder
Approved
2025-07-29
Creation of an additional floor including front and rear rooflights.
25E Highfield Road London N21 3HD · premises record
Householder
Approved
2024-11-22
Creation of an additional floor and replacement of existing roof.
25E Highfield Road London N21 3HD · premises record
Householder
Refused
2024-05-07
Single storey rear extension.
15 Highfield Road London N21 3HD · premises record
Householder
Refused
2023-08-02
Single storey rear extension.
15 Highfield Road London N21 3HD · premises record
Cert of Lawful Use/Operation - Proposed
Approved
2023-07-06
Part single part 2-storey rear extension.
15 Highfield Road London N21 3HD · premises record
Householder
Refused
2023-02-17
Single storey rear extension.
41 Highfield Road London N21 3HD · premises record
Applicant Mr and Ms Leon and Violetta Khan Amirian and Vasileiou · Agent J A IOANNOU · Officer David Maguire
Householder
Approved
2022-06-09
Single storey rear extension.
43 Highfield Road London N21 3HD · premises record
Householder
Approved
2022-06-01
Erection of conservatory at rear.
35 Highfield Road London N21 3HD · premises record
Householder
Approved
2021-06-10
Single storey rear / side extension and 1st floor rear extension.
21 Highfield Road London N21 3HD · premises record
Householder
Refused
2021-02-23
Single storey side extension.
31 Highfield Road London N21 3HD · premises record
Approved
2025-07-29
More
Householder
Creation of an additional floor including front and rear rooflights.
25E Highfield Road London N21 3HD · premises record
Approved
2024-11-22
More
Householder
Creation of an additional floor and replacement of existing roof.
25E Highfield Road London N21 3HD · premises record
Refused
2024-05-07
More
Householder
Show all 10 rows
Single storey rear extension.
15 Highfield Road London N21 3HD · premises record
Refused
2023-08-02
More
Householder
Single storey rear extension.
15 Highfield Road London N21 3HD · premises record
Approved
2023-07-06
More
Cert of Lawful Use/Operation - Proposed
Part single part 2-storey rear extension.
15 Highfield Road London N21 3HD · premises record
Refused
2023-02-17
More
Householder
Single storey rear extension.
41 Highfield Road London N21 3HD · premises record
Applicant Mr and Ms Leon and Violetta Khan Amirian and Vasileiou · Agent J A IOANNOU · Officer David Maguire
Approved
2022-06-09
More
Householder
Single storey rear extension.
43 Highfield Road London N21 3HD · premises record
Approved
2022-06-01
More
Householder
Erection of conservatory at rear.
35 Highfield Road London N21 3HD · premises record
Approved
2021-06-10
More
Householder
Single storey rear / side extension and 1st floor rear extension.
21 Highfield Road London N21 3HD · premises record
Refused
2021-02-23
More
Householder
Building control
Building-control records are not yet collected for Enfield — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).
Place
What affects it?
Every mapped designation touching a premises in this postcode, with how many of its 35 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Borough wide · reference AD17 · covers 35 of 35 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Borough wide · reference AD17 · covers 35 of 35 premises. Some normally permitted changes may require planning permission.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
People
Who is involved?
Named on the latest 30 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 3 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 3 applications
Applicant on 2 applications
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Development
What could it become?
Planning precedent36 applications and 38 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy28 EPC records; ratings A: 1, B: 12, C: 8, D: 4, E: 3.
What is not assertedNo capacity, value or ownership claim is made at area level; those belong to individual premises records and their evidence.
Intent signals
Planning Atlas ProOwnership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
Thinking about a project here?
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.