Postcode record · Enfield
N21 3SA.
N21 3SA has 39 known premises and 35 planning records — 22 approved of 34 decided (64.7%). 18 EPC records.
Postcode N21 3SA · boundary not held, centred on the postcodeApprovedRefusedOther35 exact35 on the map — every match
At a glance · this postcodeEnfield profile →
39
Premises
known addresses (UPRNs)
35
Applications
34 decided
64.7%
Approval rate
22 approved · 12 refused
18
EPC records
ratings C 9 · D 4 · E 5
35
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 3SA has 39 known premises and 35 planning records — 22 approved of 34 decided (64.7%). 18 EPC records.
Premises (18 of 39 shown)
Name
Details
UPRN 207002488
UPRN 207002489
UPRN 207002490
UPRN 207002491
UPRN 207002492
UPRN 207002493
UPRN 207002494
UPRN 207002495
UPRN 207002496
UPRN 207002497
UPRN 207002488
UPRN 207002489
UPRN 207002490
Show all 10 rows
UPRN 207002491
UPRN 207002492
UPRN 207002493
UPRN 207002494
UPRN 207002495
UPRN 207002496
UPRN 207002497
Planning
What happened?
35 planning applications across the postcode; 22 approved of 34 decided (64.7%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Alterations to existing outbuilding at rear, involving first floor and 2nd floor extension with roof extension to provide 2no. self-contained flats, with cycle and refuse/recycle storage.
749 Green Lanes London N21 3SA · premises record
Full
Refused
2026-03-20
Alterations to existing outbuilding at rear, first floor and 2nd floor extension and roof extension to provide 2no. self-contained flats.
749 Green Lanes London N21 3SA · premises record
Full
Refused
2023-11-21
Details pursuant to ref: 21/02044/FUL: cycle parking (5), external finishing materials (7), for the extension and conversion to rear of third floor/roofspace level incorporating mansard roof and 1No. self-contained flat.
749 Green Lanes London N21 3SA · premises record
Discharge Condition
Approved
2022-08-08
Extension and conversion to rear of third floor/roofspace level incorporating mansard roof and 1No. self-contained flat.
749 Green Lanes London N21 3SA · premises record
Full
Approved
2021-05-25
Erection of fencing and gates to rear of property (RETROSPECTIVE).
759 Green Lanes London N21 3SA · premises record
Applicant Mrs Denise Selchouk · Officer Allison Russell
Full
Approved
2021-01-25
Change of use from residential flat (Class C3) to office (Class A2/B1).
747B Green Lanes London N21 3SA · premises record
Full
Refused
2019-01-14
Use of property as law firm (Class A2).
747 Green Lanes London N21 3SA · premises record
Cert of Lawful Use/Operation - Existing
Approved
2019-01-14
Creation of additional 5 x self contained flats (3 x 2-bed, 2 x 1-bed), with 1st and 2nd floor rear extensions and installation of a 3rd storey, involving a roof terrace, solar panels and creation of roof architectural features.
765 Green Lanes London N21 3SA · premises record
Full
Refused
2018-09-24
Creation of additional 3 x self contained flats (2 x 2-bed, 1 x 3-bed), with 1st and 2nd floor rear extensions and installation of a 3rd storey, involving a roof terrace, solar panels and creation of roof architectural features.
765 Green Lanes London N21 3SA · premises record
Full
Refused
2018-05-04
Alterations to existing outbuilding at rear, involving first floor and 2nd floor extension with roof extension to provide 2no. self-contained flats, with cycle and refuse/recycle storage.
749 Green Lanes London N21 3SA · premises record
Refused
2026-03-20
More
Full
Alterations to existing outbuilding at rear, first floor and 2nd floor extension and roof extension to provide 2no. self-contained flats.
749 Green Lanes London N21 3SA · premises record
Refused
2023-11-21
More
Full
Details pursuant to ref: 21/02044/FUL: cycle parking (5), external finishing materials (7), for the extension and conversion to rear of third floor/roofspace level incorporating mansard roof and 1No. self-contained flat.
749 Green Lanes London N21 3SA · premises record
Approved
2022-08-08
More
Discharge Condition
Show all 10 rows
Extension and conversion to rear of third floor/roofspace level incorporating mansard roof and 1No. self-contained flat.
749 Green Lanes London N21 3SA · premises record
Approved
2021-05-25
More
Full
Erection of fencing and gates to rear of property (RETROSPECTIVE).
759 Green Lanes London N21 3SA · premises record
Applicant Mrs Denise Selchouk · Officer Allison Russell
Approved
2021-01-25
More
Full
Change of use from residential flat (Class C3) to office (Class A2/B1).
747B Green Lanes London N21 3SA · premises record
Refused
2019-01-14
More
Full
Use of property as law firm (Class A2).
747 Green Lanes London N21 3SA · premises record
Approved
2019-01-14
More
Cert of Lawful Use/Operation - Existing
Creation of additional 5 x self contained flats (3 x 2-bed, 2 x 1-bed), with 1st and 2nd floor rear extensions and installation of a 3rd storey, involving a roof terrace, solar panels and creation of roof architectural features.
765 Green Lanes London N21 3SA · premises record
Refused
2018-09-24
More
Full
Single storey rear extension.
757 Green Lanes London N21 3SA · premises record
Approved
2018-09-17
More
Full
Creation of additional 3 x self contained flats (2 x 2-bed, 1 x 3-bed), with 1st and 2nd floor rear extensions and installation of a 3rd storey, involving a roof terrace, solar panels and creation of roof architectural features.
765 Green Lanes London N21 3SA · premises record
Refused
2018-05-04
More
Full
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 39 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Borough wide · reference AD17 · covers 39 of 39 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Borough wide · reference AD17 · covers 39 of 39 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 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 3 applications
Applicant on 3 applications
Applicant on 2 applications
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 precedent35 applications and 35 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy18 EPC records; ratings C: 9, D: 4, E: 5.
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.
14 intent signals recorded in this postcode
Insolvency · Beatable refusal · Portfolio seller · Charge registered · Repeat sale · Price decline · Long hold · Ageing director
Subscribe to see the signals →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.