Postcode record · Barnet
N3 3PY.
N3 3PY has 9 known premises and 23 planning records — 10 approved of 21 decided (47.6%). 4 EPC records.
Postcode N3 3PY · boundary not held, centred on the postcodeApprovedRefusedOther23 exact23 on the map — every match
At a glance · this postcodeBarnet profile →
9
Premises
known addresses (UPRNs)
23
Applications
21 decided
47.6%
Approval rate
10 approved · 8 refused
4
EPC records
ratings C 2 · D 2
23
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 3PY has 9 known premises and 23 planning records — 10 approved of 21 decided (47.6%). 4 EPC records.
Premises
Name
Details
UPRN 200003057
UPRN 200003059
UPRN 200003061
UPRN 200003063
UPRN 200003065
UPRN 200003068
UPRN 200003069
UPRN 200003071
UPRN 200003073
UPRN 200003057
UPRN 200003059
UPRN 200003061
Show all 9 rows
UPRN 200003063
UPRN 200003065
UPRN 200003068
UPRN 200003069
UPRN 200003071
UPRN 200003073
Planning
What happened?
23 planning applications across the postcode; 10 approved of 21 decided (47.6%). Latest 23 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Submission of details of condition 7 (Levels) 8 (Excavation for Services) 9 (Tree Protection & Method Statement) 10 (Details of Foundations) pursuant to planning permission 26/0944/HSE dated 05/05/2026
31 Allandale Avenue London N3 3PY · premises record
Conditions
Unknown
2026-05-28
Two storey side and rear extension with rear balcony with associated privacy screen and balustrade. Insertion of 3no. front facing rooflights
31 Allandale Avenue London N3 3PY · premises record
Householder Application
Pending Consideration
2026-05-15
Two storey side and rear extension with rear balcony with associated privacy screen and balustrade. Insertion of 3no. front facing rooflights.
31 Allandale Avenue London N3 3PY · premises record
Householder
Approved
2026-03-12
Erection of a rear outbuilding
31 Allandale Avenue London N3 3PY · premises record
Proposed Lawful Development Certificate
Refused
2025-12-05
Erection of a rear outbuilding
31 Allandale Avenue London N3 3PY · premises record
Proposed Lawful Development Certificate
Refused
2025-10-17
Two storey side and rear extension including roof terrace. Insertion of 3no. front facing rooflights
31 Allandale Avenue London N3 3PY · premises record
Householder Application
Refused
2025-07-14
Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 2.95 metres and eaves height of 2.95 metres.
31 Allandale Avenue London N3 3PY · premises record
Prior Notification (Householder)
Not required
2025-04-30
Erection of a rear outbuilding
43 Allandale Avenue London N3 3PY · premises record
Proposed Lawful Development Certificate
Approved
2023-04-11
Submission of details of conditions 4 (Details of Levels), 7 (Details of refuse storage) and 12 (Details of hard and soft landscaping) pursuant to planning permission C16551A/06 (09/01/2007)
47 And 49 Allandale Avenue London N3 3PY · premises record
Conditions
Approved
2016-05-26
Extension to the time limit for implementing planning permission reference F/01884/09 dated 14/07/2009 for 'Single storey rear extension'.
39 Allandale Avenue, London, N3 3PY · premises record
Full Application
Approved
2012-03-09
Submission of details of condition 7 (Levels) 8 (Excavation for Services) 9 (Tree Protection & Method Statement) 10 (Details of Foundations) pursuant to planning permission 26/0944/HSE dated 05/05/2026
31 Allandale Avenue London N3 3PY · premises record
Unknown
2026-05-28
More
Conditions
Two storey side and rear extension with rear balcony with associated privacy screen and balustrade. Insertion of 3no. front facing rooflights
31 Allandale Avenue London N3 3PY · premises record
Pending Consideration
2026-05-15
More
Householder Application
Two storey side and rear extension with rear balcony with associated privacy screen and balustrade. Insertion of 3no. front facing rooflights.
31 Allandale Avenue London N3 3PY · premises record
Approved
2026-03-12
More
Householder
Show all 10 rows
Erection of a rear outbuilding
31 Allandale Avenue London N3 3PY · premises record
Refused
2025-12-05
More
Proposed Lawful Development Certificate
Erection of a rear outbuilding
31 Allandale Avenue London N3 3PY · premises record
Refused
2025-10-17
More
Proposed Lawful Development Certificate
Two storey side and rear extension including roof terrace. Insertion of 3no. front facing rooflights
31 Allandale Avenue London N3 3PY · premises record
Refused
2025-07-14
More
Householder Application
Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 2.95 metres and eaves height of 2.95 metres.
31 Allandale Avenue London N3 3PY · premises record
Not required
2025-04-30
More
Prior Notification (Householder)
Erection of a rear outbuilding
43 Allandale Avenue London N3 3PY · premises record
Approved
2023-04-11
More
Proposed Lawful Development Certificate
Submission of details of conditions 4 (Details of Levels), 7 (Details of refuse storage) and 12 (Details of hard and soft landscaping) pursuant to planning permission C16551A/06 (09/01/2007)
47 And 49 Allandale Avenue London N3 3PY · premises record
Approved
2016-05-26
More
Conditions
Extension to the time limit for implementing planning permission reference F/01884/09 dated 14/07/2009 for 'Single storey rear extension'.
39 Allandale Avenue, London, N3 3PY · premises record
Approved
2012-03-09
More
Full Application
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 9 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 9 of 9 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 9 of 9 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 23 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 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
Agent on 2 applications
Applicant on 3 applications
Applicant on 2 applications
Applicant on 2 applications
Show all 10 rows
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 2 applications
Development
What could it become?
Planning precedent23 applications and 23 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy4 EPC records; ratings C: 2, D: 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.
No intent signal is currently recorded in this postcode.
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.