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

N3 3LX.

N3 3LX has 74 known premises and 38 planning records — 28 approved of 37 decided (75.7%). 52 EPC records.

Postcode N3 3LX · boundary not held, centred on the postcodeApprovedRefusedOther38 exact38 on the map — every match
At a glance · this postcodeBarnet profile →
74
Premises
known addresses (UPRNs)
38
Applications
37 decided
75.7%
Approval rate
28 approved · 6 refused
52
EPC records
ratings B 2 · C 14 · D 28 · E 6 · F 2
38
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 3LX has 74 known premises and 38 planning records — 28 approved of 37 decided (75.7%). 52 EPC records.

Premises (18 of 74 shown)

Planning

What happened?

38 planning applications across the postcode; 28 approved of 37 decided (75.7%). Latest 30 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension with green roof and new terrace area following demolition of the existing shed. New ground floor side window. New front retaining wall, ramp and access steps with associated railings. New hardstanding to provide off-street parking. New side access gate and refuse storage area
5 Stanhope Avenue London N3 3LX · premises record
Householder Application
Pending Consideration
2026-04-30
Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights
5 Stanhope Avenue London N3 3LX · premises record
Proposed Lawful Development Certificate
Approved
2026-02-20
Two storey rear extension with green roof and new terrace area following demolition of the existing shed. New ground floor side window. New front retaining wall, ramp and access steps with associated railings. New hardstanding to provide off-street parking. New side access gate and refuse storage area
5 Stanhope Avenue London N3 3LX · premises record
Householder Application
Refused
2026-02-20
Demolition of existing building and construction of a new 2 storey block of 3 flats including rooms in roof space, incorporating 1 parking space, refuse bin storage, cycle storage and associated site works, including landscape works
4 Stanhope Avenue London N3 3LX · premises record
Applicant Mr L. Freilich · Agent Tal Arc Ltd. · Officer Carl Griffiths
Full Application
Approved
2018-05-15
Single storey rear extension with new decking area with new access steps and railing to garden level
38 Stanhope Avenue London N3 3LX · premises record
Applicant Tenenbaum · Agent Pierre Mare Architects · Officer Aine Geraghty
Full Application
Refused
2017-11-13
Single storey rear extension
7 Stanhope Avenue London N3 3LX · premises record
Householder Application
Approved
2017-03-13
Roof extension involving rear dormer window, 3no. rooflights to front elevation to facilitate a loft conversion
7 Stanhope Avenue London N3 3LX · premises record
Proposed Lawful Development Certificate
Approved
2017-03-13
Loft conversion involving 1 no dormer window to the side elevation, 1 no dormer window with juliette balcony to the rear elevation and 2 no rooflights to the front elevation
3A Stanhope Avenue London N3 3LX · premises record
Full Application
Approved
2016-05-11
Part single, part two storey rear extension to provide 2no self-contained flats
1 Stanhope Avenue London N3 3LX · premises record
Full Application
No determination
2016-04-19
Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 2.85 metres and maximum height of 3 metres
40 Stanhope Avenue London N3 3LX · premises record
Prior Notification (Householder)
Refused
2016-01-06
Single storey rear extension with green roof and new terrace area following demolition of the existing shed. New ground floor side window. New front retaining wall, ramp and access steps with associated railings. New hardstanding to provide off-street parking. New side access gate and refuse storage area
5 Stanhope Avenue London N3 3LX · premises record
Pending Consideration
2026-04-30
More
Householder Application
Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights
5 Stanhope Avenue London N3 3LX · premises record
Approved
2026-02-20
More
Proposed Lawful Development Certificate
Two storey rear extension with green roof and new terrace area following demolition of the existing shed. New ground floor side window. New front retaining wall, ramp and access steps with associated railings. New hardstanding to provide off-street parking. New side access gate and refuse storage area
5 Stanhope Avenue London N3 3LX · premises record
Refused
2026-02-20
More
Householder Application
Show all 10 rows
Demolition of existing building and construction of a new 2 storey block of 3 flats including rooms in roof space, incorporating 1 parking space, refuse bin storage, cycle storage and associated site works, including landscape works
4 Stanhope Avenue London N3 3LX · premises record
Applicant Mr L. Freilich · Agent Tal Arc Ltd. · Officer Carl Griffiths
Approved
2018-05-15
More
Full Application
Single storey rear extension with new decking area with new access steps and railing to garden level
38 Stanhope Avenue London N3 3LX · premises record
Applicant Tenenbaum · Agent Pierre Mare Architects · Officer Aine Geraghty
Refused
2017-11-13
More
Full Application
Single storey rear extension
7 Stanhope Avenue London N3 3LX · premises record
Approved
2017-03-13
More
Householder Application
Roof extension involving rear dormer window, 3no. rooflights to front elevation to facilitate a loft conversion
7 Stanhope Avenue London N3 3LX · premises record
Approved
2017-03-13
More
Proposed Lawful Development Certificate
Loft conversion involving 1 no dormer window to the side elevation, 1 no dormer window with juliette balcony to the rear elevation and 2 no rooflights to the front elevation
3A Stanhope Avenue London N3 3LX · premises record
Approved
2016-05-11
More
Full Application
Part single, part two storey rear extension to provide 2no self-contained flats
1 Stanhope Avenue London N3 3LX · premises record
No determination
2016-04-19
More
Full Application
Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 2.85 metres and maximum height of 3 metres
40 Stanhope Avenue London N3 3LX · premises record
Refused
2016-01-06
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 74 premises each one covers.

Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 74 of 74 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 74 of 74 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 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
Applicant on 1 application
Applicant on 1 application
Applicant on 3 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 precedent38 applications and 38 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy52 EPC records; ratings B: 2, C: 14, D: 28, E: 6, F: 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.

11 intent signals recorded in this postcode
Ageing director · Portfolio seller · Price decline · Repeat sale · EPC F/G · Long hold
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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 3LX, Barnet: Planning and Property History | Planning Atlas