Postcode record · Enfield
N21 1TT.
N21 1TT has 24 known premises and 12 planning records — 9 approved of 11 decided (81.8%). 16 EPC records.
Postcode N21 1TT · boundary not held, centred on the postcodeApprovedRefusedOther13 on the map — every match
At a glance · this postcodeEnfield profile →
24
Premises
known addresses (UPRNs)
12
Applications
11 decided
81.8%
Approval rate
9 approved · 2 refused
56 days
Median decision time
average 57 days · 12 dated decisions
16
EPC records
ratings C 9 · D 7
13
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 1TT has 24 known premises and 12 planning records — 9 approved of 11 decided (81.8%). 16 EPC records.
Premises (18 of 24 shown)
Name
Details
UPRN 207000616
UPRN 207174596
UPRN 207174597
UPRN 207174598
UPRN 207174599
UPRN 207174600
UPRN 207174601
UPRN 207174602
UPRN 207174603
UPRN 207174604
UPRN 207000616
UPRN 207174596
UPRN 207174597
Show all 10 rows
UPRN 207174598
UPRN 207174599
UPRN 207174600
UPRN 207174601
UPRN 207174602
UPRN 207174603
UPRN 207174604
Planning
What happened?
12 planning applications across the postcode; 9 approved of 11 decided (81.8%). Latest 12 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Householder
Approved
2023-06-23
Replacement windows and doors to 2x residential blocks.
2-20 Treves Close And 2-20 Tresilian Avenue And 111-131 Pennington Drive Southgate N21 1TT · premises record
Officer Alex Johnson
Full
Refused
2021-04-15
Single storey rear extension and front entrance porch.
40 Treves Close London N21 1TT · premises record
Officer Mrs Jennie Rebairo
Householder
Approved
2017-07-04
Householder
Approved
2017-02-16
Cert of Lawful Use/Operation - Proposed
Withdrawn
2016-12-06
Single storey rear and front extensions and alteration to fenestration at first floor rear level.
36 Treves Close London N21 1TT · premises record
Officer Mrs Jennie Rebairo
Householder
Approved
2016-12-06
Erection of front entrance porch.
42 Treves Close London N21 1TT · premises record
Officer Mrs Jennie Rebairo
Householder
Approved
2016-11-08
Single storey side and rear extension.
42 Treves Close London N21 1TT · premises record
Officer Mrs Jennie Rebairo
Householder
Approved
2015-09-23
Single storey side and rear extension.
42 Treves Close London N21 1TT · premises record
Officer Ms Eloise Kiernan
Householder
Refused
2015-06-25
Proposed single storey rear conservatory.
42, Treves Close, London, N21 1TT · premises record
Officer Mrs Jennie Rebairo
Householder
Approved
2014-05-15
Approved
2023-06-23
More
Householder
Replacement windows and doors to 2x residential blocks.
2-20 Treves Close And 2-20 Tresilian Avenue And 111-131 Pennington Drive Southgate N21 1TT · premises record
Officer Alex Johnson
Refused
2021-04-15
More
Full
Single storey rear extension and front entrance porch.
40 Treves Close London N21 1TT · premises record
Officer Mrs Jennie Rebairo
Approved
2017-07-04
More
Householder
Show all 10 rows
Approved
2017-02-16
More
Householder
Withdrawn
2016-12-06
More
Cert of Lawful Use/Operation - Proposed
Single storey rear and front extensions and alteration to fenestration at first floor rear level.
36 Treves Close London N21 1TT · premises record
Officer Mrs Jennie Rebairo
Approved
2016-12-06
More
Householder
Erection of front entrance porch.
42 Treves Close London N21 1TT · premises record
Officer Mrs Jennie Rebairo
Approved
2016-11-08
More
Householder
Single storey side and rear extension.
42 Treves Close London N21 1TT · premises record
Officer Mrs Jennie Rebairo
Approved
2015-09-23
More
Householder
Single storey side and rear extension.
42 Treves Close London N21 1TT · premises record
Officer Ms Eloise Kiernan
Refused
2015-06-25
More
Householder
Proposed single storey rear conservatory.
42, Treves Close, London, N21 1TT · premises record
Officer Mrs Jennie Rebairo
Approved
2014-05-15
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 24 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Borough wide · reference AD17 · covers 24 of 24 premises. Some normally permitted changes may require planning permission.
Conservation Area
HIGHLANDS · reference CA08 · covers 11 of 24 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Article 4 Direction Area
Borough wide · reference AD17 · covers 24 of 24 premises. Some normally permitted changes may require planning permission.
Conservation Area
HIGHLANDS · reference CA08 · covers 11 of 24 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
Access Road From Pennington Drive To Regan Lodge And Curie Lodge0 mFootpath From Tresilian Avenue To Rear Of 28 Treves Close0 mTreves Close0 mPennington Drive0 mFootpath From Anderson Close To Rear Of 28 Treves Close6 mAnderson Close14 mNewsholme Drive25 mAccess Road From Newsholme Drive To Mcdowell Court30 mFootpath Starting At Pennington Drive Ending At Access Road From Chaseville Park Road To Chaseville37 mTresilian Avenue38 m
People
Who is involved?
Named on the latest 12 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Case officer on 5 applications
Case officer on 2 applications
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 5 applications
Case officer on 2 applications
Case officer on 1 application
Show all 5 rows
Case officer on 1 application
Case officer on 1 application
Development
What could it become?
Planning precedent12 applications and 13 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy16 EPC records; ratings C: 9, D: 7.
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.
3 intent signals recorded in this postcode
Beatable refusal · Long hold
Subscribe to see the signals →Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.