Postcode record · Barnet
N3 2HN.
N3 2HN has 33 known premises and 47 planning records — 32 approved of 47 decided (68.1%). 20 EPC records.
Postcode N3 2HN · boundary not held, centred on the postcodeApprovedRefusedOther47 exact47 on the map — every match
At a glance · this postcodeBarnet profile →
33
Premises
known addresses (UPRNs)
47
Applications
47 decided
68.1%
Approval rate
32 approved · 5 refused
20
EPC records
ratings C 4 · D 11 · E 5
47
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 2HN has 33 known premises and 47 planning records — 32 approved of 47 decided (68.1%). 20 EPC records.
Premises (18 of 33 shown)
Name
Details
UPRN 200018806
UPRN 200018807
UPRN 200018808
UPRN 200018809
UPRN 200018810
UPRN 200018811
UPRN 200018812
UPRN 200018813
UPRN 200018814
UPRN 200018815
UPRN 200018806
UPRN 200018807
UPRN 200018808
Show all 10 rows
UPRN 200018809
UPRN 200018810
UPRN 200018811
UPRN 200018812
UPRN 200018813
UPRN 200018814
UPRN 200018815
Planning
What happened?
47 planning applications across the postcode; 32 approved of 47 decided (68.1%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Non material amendment to planning permission 25/3848/HSE dated 04/11/2025 for 'Single storey rear extension with 2no. rooflights. Front porch fenestration and facade alterations'. Amendments includes changes to the design of the rear-facing fenestration including increasing the height of the proposed doors to go up to the underside of the gable roof, increasing the height of the oriel window
9 Cadogan Gardens London N3 2HN · premises record
Non Material Amendment
Approved
2026-05-21
Single storey rear extension with 2no. rooflights. Front porch fenestration and facade alterations
9 Cadogan Gardens London N3 2HN · premises record
Householder Application
Approved
2025-09-18
Single storey rear extension with 1no. rooflight (amended description)
26 Cadogan Gardens London N3 2HN · premises record
Householder
Approved
2025-06-06
Installation of 1no. green Virgin Media cabinet
S/O 28 Cadogan Gardens On Oakfield Road London N3 2HN · premises record
Licence Notification
Not required
2024-11-21
Single storey rear extension with a proposed depth of 4.00m, maximum height of 3.30m and eaves height of 2.40m
18 Cadogan Gardens London N3 2HN · premises record
Prior Notification (Householder)
Not required
2024-05-24
Installation of Virgin Media fibre grey equipment cabinets
S/o 28 Cadogan Gardens London N3 2HN · premises record
Applicant Robert Lake · Officer Christian Gonito
Licence Notification
Not required
2024-03-08
Single storey rear extension
7 Cadogan Gardens London N3 2HN · premises record
Proposed Lawful Development Certificate
Approved
2024-02-29
Single storey rear infill extension to existing rear extension with a proposed depth of 3.80m, maximum height of 3.00m and eaves height of 3.00m
7 Cadogan Gardens London N3 2HN · premises record
Prior Approval
Not required
2024-01-25
Part demolition of the existing garage and erection of a granny annexe outbuilding
13 Cadogan Gardens London N3 2HN · premises record
Householder
Approved
2023-12-06
Single storey rear extension with a proposed depth of 4.00 metres from original rear wall, maximum height of 3.00 metres and eaves height of 3.00 metres.
15 Cadogan Gardens London N3 2HN · premises record
Prior Notification (Householder)
Not required
2021-09-07
Non material amendment to planning permission 25/3848/HSE dated 04/11/2025 for 'Single storey rear extension with 2no. rooflights. Front porch fenestration and facade alterations'. Amendments includes changes to the design of the rear-facing fenestration including increasing the height of the proposed doors to go up to the underside of the gable roof, increasing the height of the oriel window
9 Cadogan Gardens London N3 2HN · premises record
Approved
2026-05-21
More
Non Material Amendment
Single storey rear extension with 2no. rooflights. Front porch fenestration and facade alterations
9 Cadogan Gardens London N3 2HN · premises record
Approved
2025-09-18
More
Householder Application
Single storey rear extension with 1no. rooflight (amended description)
26 Cadogan Gardens London N3 2HN · premises record
Approved
2025-06-06
More
Householder
Show all 10 rows
Installation of 1no. green Virgin Media cabinet
S/O 28 Cadogan Gardens On Oakfield Road London N3 2HN · premises record
Not required
2024-11-21
More
Licence Notification
Single storey rear extension with a proposed depth of 4.00m, maximum height of 3.30m and eaves height of 2.40m
18 Cadogan Gardens London N3 2HN · premises record
Not required
2024-05-24
More
Prior Notification (Householder)
Installation of Virgin Media fibre grey equipment cabinets
S/o 28 Cadogan Gardens London N3 2HN · premises record
Applicant Robert Lake · Officer Christian Gonito
Not required
2024-03-08
More
Licence Notification
Single storey rear extension
7 Cadogan Gardens London N3 2HN · premises record
Approved
2024-02-29
More
Proposed Lawful Development Certificate
Single storey rear infill extension to existing rear extension with a proposed depth of 3.80m, maximum height of 3.00m and eaves height of 3.00m
7 Cadogan Gardens London N3 2HN · premises record
Not required
2024-01-25
More
Prior Approval
Part demolition of the existing garage and erection of a granny annexe outbuilding
13 Cadogan Gardens London N3 2HN · premises record
Approved
2023-12-06
More
Householder
Single storey rear extension with a proposed depth of 4.00 metres from original rear wall, maximum height of 3.00 metres and eaves height of 3.00 metres.
15 Cadogan Gardens London N3 2HN · premises record
Not required
2021-09-07
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 33 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 33 of 33 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 33 of 33 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 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 1 application
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
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 precedent47 applications and 47 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy20 EPC records; ratings C: 4, D: 11, 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
The Developer PlanOwnership, 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.