Postcode record · Barnet
N3 3NN.
N3 3NN has 8 known premises and 10 planning records — 7 approved of 10 decided (70%). 5 EPC records.
Postcode N3 3NN · boundary not held, centred on the postcodeApprovedRefusedOther10 exact10 on the map — every match
At a glance · this postcodeBarnet profile →
8
Premises
known addresses (UPRNs)
10
Applications
10 decided
70%
Approval rate
7 approved · 2 refused
5
EPC records
ratings D 1 · E 4
10
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 3NN has 8 known premises and 10 planning records — 7 approved of 10 decided (70%). 5 EPC records.
Premises
Name
Details
UPRN 200119828
UPRN 200119829
UPRN 200119830
UPRN 200119831
UPRN 200119832
UPRN 200119833
UPRN 200119834
UPRN 200119835
UPRN 200119828
UPRN 200119829
UPRN 200119830
Show all 8 rows
UPRN 200119831
UPRN 200119832
UPRN 200119833
UPRN 200119834
UPRN 200119835
Planning
What happened?
10 planning applications across the postcode; 7 approved of 10 decided (70%). Latest 10 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension
2 Upper Cavendish Avenue London N3 3NN · premises record
Householder Application
Approved
2024-03-20
Single storey rear extension with 2no. rooflights following demolition of existing single storey rear outrigger and bay window. Partial infill of existing covered porch. Changes to flank fenestration's involving replacement windows. (Amended Description)
4 Upper Cavendish Avenue London N3 3NN · premises record
Applicant Mr Michael Shupac · Officer Christian Gonito
Householder Application
Approved
2024-03-13
Roof extension involving hip to gable, rear dormer window, 2no front facing rooflights and new side gable window
4 Upper Cavendish Avenue London N3 3NN · premises record
Applicant Mr Michael Shupac · Officer Bradley Carson
Proposed Lawful Development Certificate
Approved
2024-03-11
Single storey rear extension following demolition of the existing extension. Changes to front and side fenestration. Pitched roof to ground floor front bay window.
3 Upper Cavendish Avenue London N3 3NN · premises record
Householder Application
Approved
2019-05-20
Roof extension involving hip to gable, rear dormer window, 1no front facing rooflight and new side gable window
3 Upper Cavendish Avenue London N3 3NN · premises record
Applicant Mr & Mrs Graham + Caroline Wright · Agent Graham Wright Architect · Officer Grainne Lawrenson
Proposed Lawful Development Certificate
Approved
2019-05-07
New front porch. Internal alterations
5 Upper Cavendish Avenue London N3 3NN · premises record
Householder Application
Approved
2016-11-08
Single storey rear extension with a proposed maximum depth of 5 metres from original rear wall, eaves height of 2.87 metres and maximum height of 3.95 metres
5 Upper Cavendish Avenue London N3 3NN · premises record
Applicant Mr Richard Malach · Agent HDA ARCHITECTURE
Prior Notification (Householder)
Not required
2016-09-29
Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 2.88 metres and maximum height of 3.95 metres
5 Upper Cavendish Avenue London N3 3NN · premises record
Prior Notification (Householder)
Refused
2016-08-09
New loft conversion with partial hip to gable extensions, rear dormer with juliette balcony, and 1no rooflight to front elevation
5 Upper Cavendish Avenue London N3 3NN · premises record
Applicant Mr Richard Malach · Agent HDA ARCHITECTURE
Proposed Lawful Development Certificate
Approved
2016-08-02
Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 2.8 metres and maximum height of 3.9 metres
5 Upper Cavendish Avenue London N3 3NN · premises record
Prior Notification (Householder)
Refused
2016-07-18
Single storey rear extension
2 Upper Cavendish Avenue London N3 3NN · premises record
Approved
2024-03-20
More
Householder Application
Single storey rear extension with 2no. rooflights following demolition of existing single storey rear outrigger and bay window. Partial infill of existing covered porch. Changes to flank fenestration's involving replacement windows. (Amended Description)
4 Upper Cavendish Avenue London N3 3NN · premises record
Applicant Mr Michael Shupac · Officer Christian Gonito
Approved
2024-03-13
More
Householder Application
Roof extension involving hip to gable, rear dormer window, 2no front facing rooflights and new side gable window
4 Upper Cavendish Avenue London N3 3NN · premises record
Applicant Mr Michael Shupac · Officer Bradley Carson
Approved
2024-03-11
More
Proposed Lawful Development Certificate
Show all 10 rows
Single storey rear extension following demolition of the existing extension. Changes to front and side fenestration. Pitched roof to ground floor front bay window.
3 Upper Cavendish Avenue London N3 3NN · premises record
Approved
2019-05-20
More
Householder Application
Roof extension involving hip to gable, rear dormer window, 1no front facing rooflight and new side gable window
3 Upper Cavendish Avenue London N3 3NN · premises record
Applicant Mr & Mrs Graham + Caroline Wright · Agent Graham Wright Architect · Officer Grainne Lawrenson
Approved
2019-05-07
More
Proposed Lawful Development Certificate
New front porch. Internal alterations
5 Upper Cavendish Avenue London N3 3NN · premises record
Approved
2016-11-08
More
Householder Application
Single storey rear extension with a proposed maximum depth of 5 metres from original rear wall, eaves height of 2.87 metres and maximum height of 3.95 metres
5 Upper Cavendish Avenue London N3 3NN · premises record
Applicant Mr Richard Malach · Agent HDA ARCHITECTURE
Not required
2016-09-29
More
Prior Notification (Householder)
Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 2.88 metres and maximum height of 3.95 metres
5 Upper Cavendish Avenue London N3 3NN · premises record
Refused
2016-08-09
More
Prior Notification (Householder)
New loft conversion with partial hip to gable extensions, rear dormer with juliette balcony, and 1no rooflight to front elevation
5 Upper Cavendish Avenue London N3 3NN · premises record
Applicant Mr Richard Malach · Agent HDA ARCHITECTURE
Approved
2016-08-02
More
Proposed Lawful Development Certificate
Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 2.8 metres and maximum height of 3.9 metres
5 Upper Cavendish Avenue London N3 3NN · premises record
Refused
2016-07-18
More
Prior Notification (Householder)
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 8 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 8 of 8 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 8 of 8 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 10 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 5 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Agent on 5 applications
Agent on 2 applications
Agent on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Applicant on 5 applications
Applicant on 2 applications
Applicant on 2 applications
Show all 10 rows
Applicant on 1 application
Agent on 5 applications
Agent on 2 applications
Agent on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Development
What could it become?
Planning precedent10 applications and 10 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy5 EPC records; ratings D: 1, E: 4.
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.