Planning Atlas
Planning AtlasBarnetFinchley Church End wardN3 3NP
Postcode record · Barnet

N3 3NP.

N3 3NP has 35 known premises and 35 planning records — 20 approved of 34 decided (58.8%). 20 EPC records.

Postcode N3 3NP · boundary not held, centred on the postcodeApprovedRefusedOther35 exact5 approximate40 on the map — every match
At a glance · this postcodeBarnet profile →
35
Premises
known addresses (UPRNs)
35
Applications
34 decided
58.8%
Approval rate
20 approved · 9 refused
20
EPC records
ratings B 7 · C 5 · D 6 · E 2
40
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 3NP has 35 known premises and 35 planning records — 20 approved of 34 decided (58.8%). 20 EPC records.

Premises (18 of 35 shown)

Planning

What happened?

35 planning applications across the postcode; 20 approved of 34 decided (58.8%). Latest 30 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
Existing rear extension parapet to be raised and capped with concrete coping stones. Green roof to new flat roof and addition of sliding doors and window to rear. Changes to side fenestration
44 Mountfield Road London N3 3NP · premises record
Applicant Ms Emma Grainger · Agent Auraa LTD · Officer Radhika Bedi
Householder Application
Pending Decision
2026-04-14
Single storey side extension. Roof extension involving hip to gable to one side, replacement of existing rear dormer, 2no. side facing rooflights. Changes to fenestration including creation of new window openings
48 Mountfield Road London N3 3NP · premises record
Applicant Mrs Chantal Gelb · Agent tea-arc · Officer Keshni Patel-Rayani
Householder Application
Approved
2023-05-19
Conversion of 2no. self contained flats back to a single dwelling house
44 Mountfield Road London N3 3NP · premises record
Applicant Mr Jonny Goldstone · Agent Hark Architecture · Officer Radhika Bedi
Proposed Lawful Development Certificate
Approved
2023-01-23
Roof extension involving side and rear dormer window with Juliette Balcony
44A Mountfield Road London N3 3NP · premises record
Full Application
Refused
2021-12-14
Roof extension involving side and rear dormer window with Juliette Balcony
44A Mountfield Road London N3 3NP · premises record
Full Application
Refused
2021-09-14
Single storey rear extension with a maximum depth of 6.1metres from the original rear wall. Eaves height of 3metres and maximum height of 3metres
50 Mountfield Road London N3 3NP · premises record
Prior Notification (Householder)
Not required
2016-04-28
Single storey rear extension with a maximum depth of 6metres from the original rear wall. Eaves height of 3metres and maximum height of 3metres
50 Mountfield Road London N3 3NP · premises record
Applicant Mrs Lisa Lam · Agent Mr Parham Bakhtar · Officer Tania Sa Cordeiro
Prior Notification (Householder)
Refused
2016-04-13
Single storey rear extension
50 Mountfield Road London N3 3NP · premises record
Applicant Mrs Lisa Lam · Agent 32 Design Architects · Officer Agnes Wanja
Proposed Lawful Development Certificate
Withdrawn
2016-03-14
1 x Lime - Remove. T1 of Tree Preservation Order
Montgomery Court, 66 Mountfield Road, London, N3 3NP · premises record
Applicant Mrs T Goodkind · Officer Edward Jones
Treeworks: Fell TPO tree(s)
Approved
2014-02-07
Extensions to roof including side dormer window and alterations to front and rear elevations to facilitate a loft conversion.
62 Mountfield Road, London, N3 3NP · premises record
Applicant Mrs S Sands · Agent Mr D Chandegna · Officer Laurence Ackrill
Proposed Lawful Development Certificate
Approved
2014-01-13
Existing rear extension parapet to be raised and capped with concrete coping stones. Green roof to new flat roof and addition of sliding doors and window to rear. Changes to side fenestration
44 Mountfield Road London N3 3NP · premises record
Applicant Ms Emma Grainger · Agent Auraa LTD · Officer Radhika Bedi
Pending Decision
2026-04-14
More
Householder Application
Single storey side extension. Roof extension involving hip to gable to one side, replacement of existing rear dormer, 2no. side facing rooflights. Changes to fenestration including creation of new window openings
48 Mountfield Road London N3 3NP · premises record
Applicant Mrs Chantal Gelb · Agent tea-arc · Officer Keshni Patel-Rayani
Approved
2023-05-19
More
Householder Application
Conversion of 2no. self contained flats back to a single dwelling house
44 Mountfield Road London N3 3NP · premises record
Applicant Mr Jonny Goldstone · Agent Hark Architecture · Officer Radhika Bedi
Approved
2023-01-23
More
Proposed Lawful Development Certificate
Show all 10 rows
Roof extension involving side and rear dormer window with Juliette Balcony
44A Mountfield Road London N3 3NP · premises record
Refused
2021-12-14
More
Full Application
Roof extension involving side and rear dormer window with Juliette Balcony
44A Mountfield Road London N3 3NP · premises record
Refused
2021-09-14
More
Full Application
Single storey rear extension with a maximum depth of 6.1metres from the original rear wall. Eaves height of 3metres and maximum height of 3metres
50 Mountfield Road London N3 3NP · premises record
Not required
2016-04-28
More
Prior Notification (Householder)
Single storey rear extension with a maximum depth of 6metres from the original rear wall. Eaves height of 3metres and maximum height of 3metres
50 Mountfield Road London N3 3NP · premises record
Applicant Mrs Lisa Lam · Agent Mr Parham Bakhtar · Officer Tania Sa Cordeiro
Refused
2016-04-13
More
Prior Notification (Householder)
Single storey rear extension
50 Mountfield Road London N3 3NP · premises record
Applicant Mrs Lisa Lam · Agent 32 Design Architects · Officer Agnes Wanja
Withdrawn
2016-03-14
More
Proposed Lawful Development Certificate
1 x Lime - Remove. T1 of Tree Preservation Order
Montgomery Court, 66 Mountfield Road, London, N3 3NP · premises record
Applicant Mrs T Goodkind · Officer Edward Jones
Approved
2014-02-07
More
Treeworks: Fell TPO tree(s)
Extensions to roof including side dormer window and alterations to front and rear elevations to facilitate a loft conversion.
62 Mountfield Road, London, N3 3NP · premises record
Applicant Mrs S Sands · Agent Mr D Chandegna · Officer Laurence Ackrill
Approved
2014-01-13
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 35 premises each one covers.

Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 35 of 35 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 35 of 35 premises. Some normally permitted changes may require planning permission.
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 4 applications
Applicant on 3 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
Agent on 4 applications
Applicant on 4 applications
Applicant on 3 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
Agent on 4 applications
Development

What could it become?

Planning precedent35 applications and 40 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy20 EPC records; ratings B: 7, C: 5, D: 6, E: 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 Pro

Ownership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.

3 intent signals recorded in this postcode
Repeat sale · Price decline · Ageing director
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Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.
N3 3NP, Barnet: planning and property history | Planning Atlas