Postcode record · Barnet
N3 1AX.
N3 1AX has 28 known premises and 28 planning records — 22 approved of 28 decided (78.6%). 13 EPC records.
Postcode N3 1AX · boundary not held, centred on the postcodeApprovedRefusedOther28 exact28 on the map — every match
At a glance · this postcodeBarnet profile →
28
Premises
known addresses (UPRNs)
28
Applications
28 decided
78.6%
Approval rate
22 approved · 4 refused
13
EPC records
ratings D 12 · E 1
28
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?
N3 1AX has 28 known premises and 28 planning records — 22 approved of 28 decided (78.6%). 13 EPC records.
Premises (18 of 28 shown)
Name
Details
UPRN 200124171
UPRN 200124173
UPRN 200124175
UPRN 200124177
UPRN 200124179
UPRN 200124181
UPRN 200124183
UPRN 200124185
UPRN 200124187
UPRN 200124189
UPRN 200124171
UPRN 200124173
UPRN 200124175
Show all 10 rows
UPRN 200124177
UPRN 200124179
UPRN 200124181
UPRN 200124183
UPRN 200124185
UPRN 200124187
UPRN 200124189
Planning
What happened?
28 planning applications across the postcode; 22 approved of 28 decided (78.6%). Latest 28 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Roof extension involving hip to gable, rear dormer window with juliette balcony, 3no front facing rooflights and new side gable window
40 West Avenue London N3 1AX · premises record
Proposed Lawful Development Certificate
Approved
2021-05-17
Roof extension involving hip to gable, rear dormer window with juliette balcony, 2no front facing rooflights and side window
42 West Avenue London N3 1AX · premises record
Proposed Lawful Development Certificate
Approved
2020-02-05
Roof extension involving hip to gable and 3no front facing rooflights (amended)
2 West Avenue London N3 1AX · premises record
Householder Application
Approved
2019-08-27
Part single, part two-storey rear and side extension following demolition of existing garage
2 West Avenue London N3 1AX · premises record
Householder Application
Approved
2018-09-26
Extension to roof including hip to gable, 1no rear dormer window and 1no side gable window and 2no rooflights to front roofslope
28 West Avenue London N3 1AX · premises record
Proposed Lawful Development Certificate
Approved
2018-08-20
Part single, part two storey rear extension. Single storey front extension incorporating existing entrance
4 West Avenue London N3 1AX · premises record
Householder Application
Approved
2018-05-04
Roof extension involving hip to gable, rear dormer window, 3no. rooflights to front and new gable window to side elevation
14 West Avenue London N3 1AX · premises record
Proposed Lawful Development Certificate
Approved
2018-03-12
Part single, part two-storey rear and side extension following demolition of existing garage
2 West Avenue London N3 1AX · premises record
Householder Application
Approved
2017-09-07
Part single, part two storey rear extension. Single storey front extension incorporating existing entrance
4 West Avenue London N3 1AX · premises record
Householder Application
Refused
2017-07-10
Roof extension involving rear dormer window with juliette balcony, 1no rear and 3no front rooflights to facilitate a loft conversion
4 West Avenue London N3 1AX · premises record
Proposed Lawful Development Certificate
Approved
2017-06-20
Roof extension involving hip to gable, rear dormer window with juliette balcony, 3no front facing rooflights and new side gable window
40 West Avenue London N3 1AX · premises record
Approved
2021-05-17
More
Proposed Lawful Development Certificate
Roof extension involving hip to gable, rear dormer window with juliette balcony, 2no front facing rooflights and side window
42 West Avenue London N3 1AX · premises record
Approved
2020-02-05
More
Proposed Lawful Development Certificate
Roof extension involving hip to gable and 3no front facing rooflights (amended)
2 West Avenue London N3 1AX · premises record
Approved
2019-08-27
More
Householder Application
Show all 10 rows
Part single, part two-storey rear and side extension following demolition of existing garage
2 West Avenue London N3 1AX · premises record
Approved
2018-09-26
More
Householder Application
Extension to roof including hip to gable, 1no rear dormer window and 1no side gable window and 2no rooflights to front roofslope
28 West Avenue London N3 1AX · premises record
Approved
2018-08-20
More
Proposed Lawful Development Certificate
Part single, part two storey rear extension. Single storey front extension incorporating existing entrance
4 West Avenue London N3 1AX · premises record
Approved
2018-05-04
More
Householder Application
Roof extension involving hip to gable, rear dormer window, 3no. rooflights to front and new gable window to side elevation
14 West Avenue London N3 1AX · premises record
Approved
2018-03-12
More
Proposed Lawful Development Certificate
Part single, part two-storey rear and side extension following demolition of existing garage
2 West Avenue London N3 1AX · premises record
Approved
2017-09-07
More
Householder Application
Part single, part two storey rear extension. Single storey front extension incorporating existing entrance
4 West Avenue London N3 1AX · premises record
Refused
2017-07-10
More
Householder Application
Roof extension involving rear dormer window with juliette balcony, 1no rear and 3no front rooflights to facilitate a loft conversion
4 West Avenue London N3 1AX · premises record
Approved
2017-06-20
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 28 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 28 of 28 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 28 of 28 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 28 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 2 applications
Applicant on 2 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 2 applications
Applicant on 2 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 precedent28 applications and 28 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy13 EPC records; ratings D: 12, E: 1.
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.