Postcode record · Barnet
N3 1AG.
N3 1AG has 29 known premises and 33 planning records — 25 approved of 33 decided (75.8%). 15 EPC records.
Postcode N3 1AG · boundary not held, centred on the postcodeApprovedRefusedOther33 exact33 on the map — every match
At a glance · this postcodeBarnet profile →
29
Premises
known addresses (UPRNs)
33
Applications
33 decided
75.8%
Approval rate
25 approved · 6 refused
15
EPC records
ratings D 10 · E 5
33
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 1AG has 29 known premises and 33 planning records — 25 approved of 33 decided (75.8%). 15 EPC records.
Premises (18 of 29 shown)
Name
Details
UPRN 200042779
UPRN 200042780
UPRN 200042781
UPRN 200042782
UPRN 200042783
UPRN 200042784
UPRN 200042785
UPRN 200042786
UPRN 200042787
UPRN 200042788
UPRN 200042779
UPRN 200042780
UPRN 200042781
Show all 10 rows
UPRN 200042782
UPRN 200042783
UPRN 200042784
UPRN 200042785
UPRN 200042786
UPRN 200042787
UPRN 200042788
Planning
What happened?
33 planning applications across the postcode; 25 approved of 33 decided (75.8%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
New front boundary wall with associated piers and railings
21 Finchley Way London N3 1AG · premises record
Householder Application
Refused
2025-06-19
Roof extension including hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights and removal of chimney (AMENDED DESCRIPTION)
10 Finchley Way London N3 1AG · premises record
Proposed Lawful Development Certificate
Approved
2023-01-19
Alteration and extension to existing roof to include enlargement of existing rear dormer with 1 no. associated rear facing rooflight. (AMENDED DESCRIPTION)
14 Finchley Way London N3 1AG · premises record
Proposed Lawful Development Certificate
Approved
2021-02-16
Roof extension involving a hip to gable extension, rear dormer window extension and side elevation window
21 Finchley Way London N3 1AG · premises record
Proposed Lawful Development Certificate
Approved
2020-01-27
Single storey rear/side extension. Alterations to fenestration, new rear access door. Rear patio with balustrade and rear steps
21 Finchley Way London N3 1AG · premises record
Retention/Continued Use
Approved
2016-07-22
Single storey side extension following the demolition of the garage. Loft conversion involving 1 no dormer to the rear and side elevations
20 Finchley Way London N3 1AG · premises record
Applicant Mr Graham Cardoe · Officer Tania Sa Cordeiro
Householder Application
Approved
2016-03-03
Single storey rear extension. Extension to existing patio and fence
2 Finchley Way London N3 1AG · premises record
Householder Application
Approved
2016-01-12
Single storey rear extension
11 Finchley Way London N3 1AG · premises record
Householder Application
Approved
2015-12-18
Single storey rear extension with a maximum depth of 3.9 metres from the original rear wall. Eaves height of 2.55 metres and maximum height of 3.6 metres
2 Finchley Way London N3 1AG · premises record
Prior Notification (Householder)
Refused
2015-12-09
Variation of condition 5 (Obscure Glazing) of planning permission 15/01576/HSE dated 11/06/15 for 'Single storey rear extension following demolition of existing rear projection. New front porch. Extension to roof including hip to gable, rear dormer with juliette balcony and solar panels and 1no. front rooflight to facilitate a loft conversion. External insulation to property.' Condition 5 to be amended to read "Before the building hereby permitted is first occupied the proposed windows in the first floor and loft floor side elevation facing 18 Finchley Way shall be glazed with obscure glass only and shall be permanently retained as such thereafter and shall be permanently fixed shut with only an opening sited more than 1.7m above the internal floor level of the rooms"
17 Finchley Way London N3 1AG · premises record
Applicant Mr Adrian Sieff · Officer Wendy Melaab
Vary/Remove condition/Minor Mtl Amnd
Approved
2015-12-01
New front boundary wall with associated piers and railings
21 Finchley Way London N3 1AG · premises record
Refused
2025-06-19
More
Householder Application
Roof extension including hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights and removal of chimney (AMENDED DESCRIPTION)
10 Finchley Way London N3 1AG · premises record
Approved
2023-01-19
More
Proposed Lawful Development Certificate
Alteration and extension to existing roof to include enlargement of existing rear dormer with 1 no. associated rear facing rooflight. (AMENDED DESCRIPTION)
14 Finchley Way London N3 1AG · premises record
Approved
2021-02-16
More
Proposed Lawful Development Certificate
Show all 10 rows
Roof extension involving a hip to gable extension, rear dormer window extension and side elevation window
21 Finchley Way London N3 1AG · premises record
Approved
2020-01-27
More
Proposed Lawful Development Certificate
Single storey rear/side extension. Alterations to fenestration, new rear access door. Rear patio with balustrade and rear steps
21 Finchley Way London N3 1AG · premises record
Approved
2016-07-22
More
Retention/Continued Use
Single storey side extension following the demolition of the garage. Loft conversion involving 1 no dormer to the rear and side elevations
20 Finchley Way London N3 1AG · premises record
Applicant Mr Graham Cardoe · Officer Tania Sa Cordeiro
Approved
2016-03-03
More
Householder Application
Single storey rear extension. Extension to existing patio and fence
2 Finchley Way London N3 1AG · premises record
Approved
2016-01-12
More
Householder Application
Single storey rear extension
11 Finchley Way London N3 1AG · premises record
Approved
2015-12-18
More
Householder Application
Single storey rear extension with a maximum depth of 3.9 metres from the original rear wall. Eaves height of 2.55 metres and maximum height of 3.6 metres
2 Finchley Way London N3 1AG · premises record
Refused
2015-12-09
More
Prior Notification (Householder)
Variation of condition 5 (Obscure Glazing) of planning permission 15/01576/HSE dated 11/06/15 for 'Single storey rear extension following demolition of existing rear projection. New front porch. Extension to roof including hip to gable, rear dormer with juliette balcony and solar panels and 1no. front rooflight to facilitate a loft conversion. External insulation to property.' Condition 5 to be amended to read "Before the building hereby permitted is first occupied the proposed windows in the first floor and loft floor side elevation facing 18 Finchley Way shall be glazed with obscure glass only and shall be permanently retained as such thereafter and shall be permanently fixed shut with only an opening sited more than 1.7m above the internal floor level of the rooms"
17 Finchley Way London N3 1AG · premises record
Applicant Mr Adrian Sieff · Officer Wendy Melaab
Approved
2015-12-01
More
Vary/Remove condition/Minor Mtl Amnd
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 29 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 29 of 29 premises. Some normally permitted changes may require planning permission.
Archaeological Priority Area
The name Finchley originates from the Anglo-Saxon and is defined as Finch’s clearing. However, Finchley is first mentioned in the 13th century. It is suggested that Church End was the earliest settlement in Finchley and was probably in use from · reference 77939 · covers 10 of 29 premises. Groundworks may require archaeological assessment or investigation.
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 29 of 29 premises. Some normally permitted changes may require planning permission.
Archaeological Priority Area
The name Finchley originates from the Anglo-Saxon and is defined as Finch’s clearing. However, Finchley is first mentioned in the 13th century. It is suggested that Church End was the earliest settlement in Finchley and was probably in use from · reference 77939 · covers 10 of 29 premises. Groundworks may require archaeological assessment or investigation.
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 3 applications
Applicant on 2 applications
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 3 applications
Applicant on 2 applications
Applicant on 2 applications
Show all 10 rows
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
Development
What could it become?
Planning precedent33 applications and 33 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy15 EPC records; ratings D: 10, 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.