Postcode record · Barnet
N3 3NE.
N3 3NE has 51 known premises and 7 planning records — 3 approved of 7 decided (42.9%). 31 EPC records.
Postcode N3 3NE · boundary not held, centred on the postcodeApprovedRefusedOther7 exact7 on the map — every match
At a glance · this postcodeBarnet profile →
51
Premises
known addresses (UPRNs)
7
Applications
7 decided
42.9%
Approval rate
3 approved · 3 refused
31
EPC records
ratings C 11 · D 14 · E 5 · F 1
7
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 3NE has 51 known premises and 7 planning records — 3 approved of 7 decided (42.9%). 31 EPC records.
Premises (18 of 51 shown)
Name
Details
UPRN 200083381
UPRN 200083382
UPRN 200083383
UPRN 200083384
UPRN 200083385
UPRN 200083387
UPRN 200083389
UPRN 200083391
UPRN 200083393
UPRN 200083395
UPRN 200083381
UPRN 200083382
UPRN 200083383
Show all 10 rows
UPRN 200083384
UPRN 200083385
UPRN 200083387
UPRN 200083389
UPRN 200083391
UPRN 200083393
UPRN 200083395
Planning
What happened?
7 planning applications across the postcode; 3 approved of 7 decided (42.9%). Latest 7 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Roof extension involving rear dormer window and 1no. rooflight
24 Mountfield Road London N3 3NE · premises record
Proposed Lawful Development Certificate
Approved
2026-02-04
Single storey side and rear extension wrap-around extension with 5no. rooflights
24 Mountfield Road London N3 3NE · premises record
Householder Application
Refused
2026-02-03
New front vehicular access to provide off-street parking
Flat 1, 28 Mountfield Road London N3 3NE · premises record
Applicant Mr Mounir Ahrazem · Officer Refael Saffer
Full Application
Approved
2022-01-24
Erection of 2 storey building block at rear of 20 Mountfield Road to create 2no. self contained flats. Hard and soft landscaping including refuse area, cycle store and 2no. off-street parking.
20 Mountfield Road, London, N3 3NE · premises record
Full Application
Withdrawn
2013-02-11
Single storey rear extension.
38A Mountfield Road, London, N3 3NE · premises record
Householder Application
Approved
2012-02-07
Erection of 4 No. lock up garages (accessed from Stanhope Avenue) on land to rear of 20 Mountfield Road in association with the use of the property at 20 Mountfield Road.
20 Mountfield Road London N3 3NE · premises record
Applicant Unlimited Properties · Officer Historic Planning Officer
Full Application
Refused
2007-02-19
Alteration to roof including side dormer window to facilitate a loft conversion.
42 Mountfield Road London N3 3NE · premises record
Applicant Mr & Mrs D Oppenheimer
Proposed Lawful Development Certificate
Refused
2004-09-23
Roof extension involving rear dormer window and 1no. rooflight
24 Mountfield Road London N3 3NE · premises record
Approved
2026-02-04
More
Proposed Lawful Development Certificate
Single storey side and rear extension wrap-around extension with 5no. rooflights
24 Mountfield Road London N3 3NE · premises record
Refused
2026-02-03
More
Householder Application
New front vehicular access to provide off-street parking
Flat 1, 28 Mountfield Road London N3 3NE · premises record
Applicant Mr Mounir Ahrazem · Officer Refael Saffer
Approved
2022-01-24
More
Full Application
Show all 7 rows
Erection of 2 storey building block at rear of 20 Mountfield Road to create 2no. self contained flats. Hard and soft landscaping including refuse area, cycle store and 2no. off-street parking.
20 Mountfield Road, London, N3 3NE · premises record
Withdrawn
2013-02-11
More
Full Application
Single storey rear extension.
38A Mountfield Road, London, N3 3NE · premises record
Approved
2012-02-07
More
Householder Application
Erection of 4 No. lock up garages (accessed from Stanhope Avenue) on land to rear of 20 Mountfield Road in association with the use of the property at 20 Mountfield Road.
20 Mountfield Road London N3 3NE · premises record
Applicant Unlimited Properties · Officer Historic Planning Officer
Refused
2007-02-19
More
Full Application
Alteration to roof including side dormer window to facilitate a loft conversion.
42 Mountfield Road London N3 3NE · premises record
Applicant Mr & Mrs D Oppenheimer
Refused
2004-09-23
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 51 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 51 of 51 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 51 of 51 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 7 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
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
Agent on 1 application
Agent on 1 application
Case officer on 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 2 applications
Agent on 1 application
Agent on 1 application
Case officer on 2 applications
Development
What could it become?
Planning precedent7 applications and 7 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy31 EPC records; ratings C: 11, D: 14, E: 5, F: 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
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.