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

N3 3LY.

N3 3LY has 47 known premises and 14 planning records — 12 approved of 14 decided (85.7%). 17 EPC records.

Postcode N3 3LY · boundary not held, centred on the postcodeApprovedRefusedOther14 exact1 approximate15 on the map — every match
At a glance · this postcodeBarnet profile →
47
Premises
known addresses (UPRNs)
14
Applications
14 decided
85.7%
Approval rate
12 approved · 2 refused
17
EPC records
ratings C 4 · D 9 · E 3 · G 1
15
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 3LY has 47 known premises and 14 planning records — 12 approved of 14 decided (85.7%). 17 EPC records.

Premises (18 of 47 shown)

Planning

What happened?

14 planning applications across the postcode; 12 approved of 14 decided (85.7%). Latest 14 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension. Alterations to ground floor roof. Creation of new side and rear window openings including first floor juliette balcony and roof window
51 Stanhope Avenue London N3 3LY · premises record
Applicant Mr Stanhope · Agent Hark Architecture · Officer Asha Chhabhaiya
Householder Application
Approved
2022-05-02
Roof extension involving side dormer windows, rear dormer window, 2no side facing rooflights, 1no front elevation rooflight and 1no dormer window rooflight
53 Stanhope Avenue London N3 3LY · premises record
Applicant Ross · Agent SEG · Officer Refael Saffer
Proposed Lawful Development Certificate
Approved
2022-01-24
Single storey side/rear extension with green roof following demolition of existing conservatory.
53 Stanhope Avenue London N3 3LY · premises record
Applicant Mr Ross · Agent SEG
Householder Application
Approved
2022-01-10
Roof extension involving rear dormer window and 3no front facing rooflights. Single storey side extension
65 Stanhope Avenue London N3 3LY · premises record
Proposed Lawful Development Certificate
Approved
2021-01-26
Demolition of existing rear conservatory and erection of new single storey rear extension
71 Stanhope Avenue London N3 3LY · premises record
Applicant Mr Carlos Meszarich · Agent xobo design · Officer Yole Medeiros
Householder Application
Approved
2016-08-02
Single storey rear and side extensin with 3no rooflights. Roof extension involving rear dormer window and 3 no rooflights to front elevation.
63 Stanhope Avenue London N3 3LY · premises record
Proposed Lawful Development Certificate
Approved
2015-10-14
Single storey rear extension
63 Stanhope Avenue London N3 3LY · premises record
Householder Application
Approved
2015-08-05
Sigle storey rear extension with a depth of 6.0 metres, measured from the original rear wall, with the eaves height of 2.7 metres and a maximum height of 4.0 metres
63 Stanhope Avenue London N3 3LY · premises record
Prior Notification (Householder)
Approved
2015-07-22
Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 3 metres and a maximum height of 3 metres.
63 Stanhope Avenue, London, N3 3LY · premises record
Applicant Mr N Dubey · Officer Antonio Coquillat
Prior Notification (Householder)
Refused
2014-09-08
New mansard roof to create a first floor extension over the existing garage. Conversion of existing garage into a habitable room with insertion of windows and a door (to be used ancillary to the main dwellinghouse).
55 Stanhope Avenue, London, N3 3LY · premises record
Applicant Dr & Mrs Yiallouros · Officer Neetal Rajput
Householder Application
Approved
2011-04-05
Single storey rear extension. Alterations to ground floor roof. Creation of new side and rear window openings including first floor juliette balcony and roof window
51 Stanhope Avenue London N3 3LY · premises record
Applicant Mr Stanhope · Agent Hark Architecture · Officer Asha Chhabhaiya
Approved
2022-05-02
More
Householder Application
Roof extension involving side dormer windows, rear dormer window, 2no side facing rooflights, 1no front elevation rooflight and 1no dormer window rooflight
53 Stanhope Avenue London N3 3LY · premises record
Applicant Ross · Agent SEG · Officer Refael Saffer
Approved
2022-01-24
More
Proposed Lawful Development Certificate
Single storey side/rear extension with green roof following demolition of existing conservatory.
53 Stanhope Avenue London N3 3LY · premises record
Applicant Mr Ross · Agent SEG
Approved
2022-01-10
More
Householder Application
Show all 10 rows
Roof extension involving rear dormer window and 3no front facing rooflights. Single storey side extension
65 Stanhope Avenue London N3 3LY · premises record
Approved
2021-01-26
More
Proposed Lawful Development Certificate
Demolition of existing rear conservatory and erection of new single storey rear extension
71 Stanhope Avenue London N3 3LY · premises record
Applicant Mr Carlos Meszarich · Agent xobo design · Officer Yole Medeiros
Approved
2016-08-02
More
Householder Application
Single storey rear and side extensin with 3no rooflights. Roof extension involving rear dormer window and 3 no rooflights to front elevation.
63 Stanhope Avenue London N3 3LY · premises record
Approved
2015-10-14
More
Proposed Lawful Development Certificate
Single storey rear extension
63 Stanhope Avenue London N3 3LY · premises record
Approved
2015-08-05
More
Householder Application
Sigle storey rear extension with a depth of 6.0 metres, measured from the original rear wall, with the eaves height of 2.7 metres and a maximum height of 4.0 metres
63 Stanhope Avenue London N3 3LY · premises record
Approved
2015-07-22
More
Prior Notification (Householder)
Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 3 metres and a maximum height of 3 metres.
63 Stanhope Avenue, London, N3 3LY · premises record
Applicant Mr N Dubey · Officer Antonio Coquillat
Refused
2014-09-08
More
Prior Notification (Householder)
New mansard roof to create a first floor extension over the existing garage. Conversion of existing garage into a habitable room with insertion of windows and a door (to be used ancillary to the main dwellinghouse).
55 Stanhope Avenue, London, N3 3LY · premises record
Applicant Dr & Mrs Yiallouros · Officer Neetal Rajput
Approved
2011-04-05
More
Householder Application

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 47 premises each one covers.

Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 47 of 47 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 47 of 47 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 14 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
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
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
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Development

What could it become?

Planning precedent14 applications and 15 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy17 EPC records; ratings C: 4, D: 9, E: 3, G: 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

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.

6 intent signals recorded in this postcode
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 3LY, Barnet: Planning and Property History | Planning Atlas