Postcode record · Barnet
N20 9AE.
N20 9AE has 27 known premises and 34 planning records — 19 approved of 33 decided (57.6%). 9 EPC records.
Postcode N20 9AE · boundary not held, centred on the postcodeApprovedRefusedOther37 exact7 approximate44 on the map — every match
At a glance · this postcodeBarnet profile →
27
Premises
known addresses (UPRNs)
34
Applications
33 decided
57.6%
Approval rate
19 approved · 7 refused
9
EPC records
ratings C 1 · D 4 · E 2 · F 1 · G 1
44
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?
N20 9AE has 27 known premises and 34 planning records — 19 approved of 33 decided (57.6%). 9 EPC records.
Premises (18 of 27 shown)
Name
Details
UPRN 200005297
UPRN 200005299
UPRN 200005300
UPRN 200005302
UPRN 200005304
UPRN 200005306
UPRN 200005308
UPRN 200005310
UPRN 200005297
Show all 10 rows
UPRN 200005299
UPRN 200005300
UPRN 200005302
UPRN 200005304
UPRN 200005306
UPRN 200005308
UPRN 200005310
Planning
What happened?
34 planning applications across the postcode; 19 approved of 33 decided (57.6%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension with a proposed maximum depth of 6.0m, a maximum height of 2.95m and an eaves height of 2.85m
18 Athenaeum Road London N20 9AE · premises record
Prior Approval
Unknown
2026-05-20
Single storey rear extension with 2no. rooflights. Roof extension involving rear dormer window 2no. front facing rooflights and new side gable window
18 Athenaeum Road London N20 9AE · premises record
Proposed Lawful Development Certificate
Approved
2026-03-04
Single storey rear extension with a depth of 8.00 metres from the rear wall of the original dwellinghouse , a maximum height of 3.40 metres and an eaves height of 3.00 metres.
10 Athenaeum Road London N20 9AE · premises record
Prior Notification (Householder)
Not required
2025-06-24
First floor rear extension with part hipped and part gable roof
10 Athenaeum Road London N20 9AE · premises record
Householder Application
Approved
2025-06-16
Two storey rear extension following demolition of the existing conservatory. Associated roof alterations including insertion of 1no. rear rooflight
28 Athenaeum Road London N20 9AE · premises record
Householder Application
Approved
2024-12-03
Single storey rear extension with a proposed depth of 5.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres, following demolition of existing conservatory.
28 Athenaeum Road London N20 9AE · premises record
Prior Notification (Householder)
Not required
2024-10-14
Replacement and relocated antennas, and associated ancillary development
2 Athenaeum Road London N20 9AE · premises record
Applicant Alan Neale
Licence Notification
Not required
2019-05-16
Change of use from Use Class B1 (office) to Use Class C3 (residential) to provide (21 Unit)
2 Athenaeum Road London N20 9AE · premises record
Applicant Mr David Rodwell · Agent Alan Cox Associates Limited
Prior Notification (Office to Res)
Approved
2019-03-12
Removal of existing stub-tower and 6 no. antennas, replacement with 12 no. proposed pole-mounted antennas, installation of 2 no. proposed 600mm dish antennas, relocation of 1 no. existing 300mm dish antenna; plus other minor ancillary works
Prospect House 2 Athenaeum Road London N20 9AE · premises record
Applicant Mr EE (UK) Ltd and Three (UK) Ltd · Agent Daly International
Full Application
Withdrawn
2019-01-21
Ground and first floor rear extension
10 Athenaeum Road London N20 9AE · premises record
Applicant Mr & Mrs Roberts · Agent MSK Design Ltd
Householder Application
Approved
2018-07-10
Single storey rear extension with a proposed maximum depth of 6.0m, a maximum height of 2.95m and an eaves height of 2.85m
18 Athenaeum Road London N20 9AE · premises record
Unknown
2026-05-20
More
Prior Approval
Single storey rear extension with 2no. rooflights. Roof extension involving rear dormer window 2no. front facing rooflights and new side gable window
18 Athenaeum Road London N20 9AE · premises record
Approved
2026-03-04
More
Proposed Lawful Development Certificate
Single storey rear extension with a depth of 8.00 metres from the rear wall of the original dwellinghouse , a maximum height of 3.40 metres and an eaves height of 3.00 metres.
10 Athenaeum Road London N20 9AE · premises record
Not required
2025-06-24
More
Prior Notification (Householder)
Show all 10 rows
First floor rear extension with part hipped and part gable roof
10 Athenaeum Road London N20 9AE · premises record
Approved
2025-06-16
More
Householder Application
Two storey rear extension following demolition of the existing conservatory. Associated roof alterations including insertion of 1no. rear rooflight
28 Athenaeum Road London N20 9AE · premises record
Approved
2024-12-03
More
Householder Application
Single storey rear extension with a proposed depth of 5.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres, following demolition of existing conservatory.
28 Athenaeum Road London N20 9AE · premises record
Not required
2024-10-14
More
Prior Notification (Householder)
Replacement and relocated antennas, and associated ancillary development
2 Athenaeum Road London N20 9AE · premises record
Applicant Alan Neale
Not required
2019-05-16
More
Licence Notification
Change of use from Use Class B1 (office) to Use Class C3 (residential) to provide (21 Unit)
2 Athenaeum Road London N20 9AE · premises record
Applicant Mr David Rodwell · Agent Alan Cox Associates Limited
Approved
2019-03-12
More
Prior Notification (Office to Res)
Removal of existing stub-tower and 6 no. antennas, replacement with 12 no. proposed pole-mounted antennas, installation of 2 no. proposed 600mm dish antennas, relocation of 1 no. existing 300mm dish antenna; plus other minor ancillary works
Prospect House 2 Athenaeum Road London N20 9AE · premises record
Applicant Mr EE (UK) Ltd and Three (UK) Ltd · Agent Daly International
Withdrawn
2019-01-21
More
Full Application
Ground and first floor rear extension
10 Athenaeum Road London N20 9AE · premises record
Applicant Mr & Mrs Roberts · Agent MSK Design Ltd
Approved
2018-07-10
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 27 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 27 of 27 premises. Some normally permitted changes may require planning permission.
Archaeological Priority Area
This APA consists of two sections: A) Totteridge The area probably originated in the Saxon period, based on its name, which can be denoted as Tata’s ridge (drier land ridge). Copped Hall was first mentioned in the 16th century and it has · reference 76165 · covers 17 of 27 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 27 of 27 premises. Some normally permitted changes may require planning permission.
Archaeological Priority Area
This APA consists of two sections: A) Totteridge The area probably originated in the Saxon period, based on its name, which can be denoted as Tata’s ridge (drier land ridge). Copped Hall was first mentioned in the 16th century and it has · reference 76165 · covers 17 of 27 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 2 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 2 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 precedent34 applications and 44 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy9 EPC records; ratings C: 1, D: 4, E: 2, F: 1, 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 ProOwnership, 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.