Postcode record · Barnet
N12 9LJ.
N12 9LJ has 14 known premises and 8 planning records — 6 approved of 8 decided (75%). 11 EPC records.
Postcode N12 9LJ · boundary not held, centred on the postcodeApprovedRefusedOther8 exact8 on the map — every match
At a glance · this postcodeBarnet profile →
14
Premises
known addresses (UPRNs)
8
Applications
8 decided
75%
Approval rate
6 approved · 2 refused
11
EPC records
ratings C 5 · D 4 · E 2
8
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?
N12 9LJ has 14 known premises and 8 planning records — 6 approved of 8 decided (75%). 11 EPC records.
Premises
Name
Details
UPRN 200099225
UPRN 200099226
UPRN 200099227
UPRN 200099229
UPRN 200099230
UPRN 200099231
UPRN 200099232
UPRN 200099233
UPRN 200099234
UPRN 200099235
UPRN 200099225
UPRN 200099226
UPRN 200099227
Show all 10 rows
UPRN 200099229
UPRN 200099230
UPRN 200099231
UPRN 200099232
UPRN 200099233
UPRN 200099234
UPRN 200099235
Planning
What happened?
8 planning applications across the postcode; 6 approved of 8 decided (75%). Latest 8 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension
Rose Cottage 3 Rosebank Close London N12 9LJ · premises record
Householder Application
Approved
2019-04-30
Single storey rear extension with a proposed depth of 5 metres from original rear wall, eaves height of 2.4 metres and maximum height of 3 metres
Rose Cottage 3 Rosebank Close London N12 9LJ · premises record
Prior Notification (Householder)
Refused
2019-01-07
Single storey side extension. Roof extension involving rear window and 1no front facing rooflight
Rose Cottage 3 Rosebank Close London N12 9LJ · premises record
Householder Application
Approved
2018-12-27
Roof extension involving rear dormer window with juliette balcony and 3no front facing rooflights
Rose Cottage 3 Rosebank Close London N12 9LJ · premises record
Proposed Lawful Development Certificate
Approved
2018-12-27
Erection of boundary treatment and sliding gate to front garden (Retrospective Application)
1 Rosebank Close London N12 9LJ · premises record
Householder Application
Refused
2017-06-05
Replacement of existing timber windows to UPVC windows to the front and rear elevations of the ground floor flat.
16 Rosebank Close, London, N12 9LJ · premises record
Householder Application
Approved
2013-03-21
Single storey side extension. Rear dormers.
1 Rosebank Close, Friern Park, London, N12 9LJ · premises record
Applicant Mr Graham Payne · Officer Alissa Fawcett
Full Application
Approved
2008-03-18
Construction of summer house to rear for ancilllary use to existing detached bungalow.
1 Rosebank Close London N12 9LJ · premises record
Applicant Mr Graham Payne · Officer Alissa Fawcett
Proposed Lawful Development Certificate
Approved
2007-12-11
Single storey rear extension
Rose Cottage 3 Rosebank Close London N12 9LJ · premises record
Approved
2019-04-30
More
Householder Application
Single storey rear extension with a proposed depth of 5 metres from original rear wall, eaves height of 2.4 metres and maximum height of 3 metres
Rose Cottage 3 Rosebank Close London N12 9LJ · premises record
Refused
2019-01-07
More
Prior Notification (Householder)
Single storey side extension. Roof extension involving rear window and 1no front facing rooflight
Rose Cottage 3 Rosebank Close London N12 9LJ · premises record
Approved
2018-12-27
More
Householder Application
Show all 8 rows
Roof extension involving rear dormer window with juliette balcony and 3no front facing rooflights
Rose Cottage 3 Rosebank Close London N12 9LJ · premises record
Approved
2018-12-27
More
Proposed Lawful Development Certificate
Erection of boundary treatment and sliding gate to front garden (Retrospective Application)
1 Rosebank Close London N12 9LJ · premises record
Refused
2017-06-05
More
Householder Application
Replacement of existing timber windows to UPVC windows to the front and rear elevations of the ground floor flat.
16 Rosebank Close, London, N12 9LJ · premises record
Approved
2013-03-21
More
Householder Application
Single storey side extension. Rear dormers.
1 Rosebank Close, Friern Park, London, N12 9LJ · premises record
Applicant Mr Graham Payne · Officer Alissa Fawcett
Approved
2008-03-18
More
Full Application
Construction of summer house to rear for ancilllary use to existing detached bungalow.
1 Rosebank Close London N12 9LJ · premises record
Applicant Mr Graham Payne · Officer Alissa Fawcett
Approved
2007-12-11
More
Proposed Lawful Development Certificate
Building control
Building-control records are not yet collected for Barnet — 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 14 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 14 of 14 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 14 of 14 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 8 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 1 application
Applicant on 1 application
Agent on 3 applications
Agent on 1 application
Agent on 1 application
Agent on 1 application
Case officer on 3 applications
Case officer on 3 applications
Applicant on 3 applications
Applicant on 3 applications
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Agent on 3 applications
Agent on 1 application
Agent on 1 application
Agent on 1 application
Case officer on 3 applications
Case officer on 3 applications
Development
What could it become?
Planning precedent8 applications and 8 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy11 EPC records; ratings C: 5, D: 4, E: 2.
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.
4 intent signals recorded in this postcode
Struggling director · Portfolio seller · Long hold
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.