Postcode record · Barnet
N20 9DD.
N20 9DD has 15 known premises and 20 planning records — 18 approved of 20 decided (90%). 7 EPC records.
Postcode N20 9DD · boundary not held, centred on the postcodeApprovedRefusedOther20 on the map — every match
At a glance · this postcodeBarnet profile →
15
Premises
known addresses (UPRNs)
20
Applications
20 decided
90%
Approval rate
18 approved · 1 refused
7
EPC records
ratings C 1 · D 4 · E 2
20
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 9DD has 15 known premises and 20 planning records — 18 approved of 20 decided (90%). 7 EPC records.
Premises
Name
Details
UPRN 200071175
UPRN 200071177
UPRN 200071179
UPRN 200071181
UPRN 200071183
UPRN 200071185
UPRN 200071187
UPRN 200071189
UPRN 200071191
UPRN 200071193
UPRN 200071175
UPRN 200071177
UPRN 200071179
Show all 10 rows
UPRN 200071181
UPRN 200071183
UPRN 200071185
UPRN 200071187
UPRN 200071189
UPRN 200071191
UPRN 200071193
Planning
What happened?
20 planning applications across the postcode; 18 approved of 20 decided (90%). Latest 20 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
First floor rear extension with juliette balcony to replace existing rear balcony. Roof extension including new crown roof with increase in ridge height, 1no. side dormer window and 9no. rooflights (AMENDED PROPOSED)
9 Langton Avenue London N20 9DD · premises record
Officer Asha Chhabhaiya
Householder Application
Approved
2024-06-20
Proposed Lawful Development Certificate
Approved
2023-08-11
Installation of air source heat pump to side elevation
3 Langton Avenue London N20 9DD · premises record
Officer Thomas Wong
Proposed Lawful Development Certificate
Withdrawn
2023-02-02
Part single, part two storey rear extension with enlarged windows and juliette balconies. Conversion of the garage into habitable room, insertion of window to replace garage door. New front porch. Insertion of new first floor window to the side elevation. (amended description)
25 Langton Avenue London N20 9DD · premises record
Officer Natasha Campbell
Householder Application
Approved
2022-12-12
Single storey rear and side extension following demolition of existing conservatory and part garage conversion
5 Langton Avenue London N20 9DD · premises record
Householder
Approved
2018-05-18
Formation of rear and side dormer windows to existing loft
9 Langton Avenue London N20 9DD · premises record
Officer Licensing Allocation
Householder Application
Approved
2016-05-12
Extension to roof including front dormer (off catslide roof) and rear dormer window to facilitate a loft conversion.
29 Langton Avenue, London, N20 9DD · premises record
Officer Erica Mason
Householder Application
Refused
2014-01-14
Single storey rear extension. First floor side extension over existing garage including new gable roof. Three roof lights in front roof slope. Two dormer windows in rear roof slope.
7 Langton Avenue, London, N20 9DD · premises record
Officer Malachy McGovern
Householder Application
Approved
2013-08-29
Extension to roof including rear dormer window to facilitate a loft conversion.
29 Langton Avenue, London, N20 9DD · premises record
Officer Rachel Caplin
Proposed Lawful Development Certificate
Approved
2011-07-04
Single storey side and first floor rear extension. Extensions to roof including side and rear dormers to facilitate a loft conversion. Extension to garage and front porch. Alterations to landscaping.
13 Langton Avenue, London, N20 9DD · premises record
Officer Mary Kearns
Full Application
Approved
2009-02-11
First floor rear extension with juliette balcony to replace existing rear balcony. Roof extension including new crown roof with increase in ridge height, 1no. side dormer window and 9no. rooflights (AMENDED PROPOSED)
9 Langton Avenue London N20 9DD · premises record
Officer Asha Chhabhaiya
Approved
2024-06-20
More
Householder Application
Approved
2023-08-11
More
Proposed Lawful Development Certificate
Installation of air source heat pump to side elevation
3 Langton Avenue London N20 9DD · premises record
Officer Thomas Wong
Withdrawn
2023-02-02
More
Proposed Lawful Development Certificate
Show all 10 rows
Part single, part two storey rear extension with enlarged windows and juliette balconies. Conversion of the garage into habitable room, insertion of window to replace garage door. New front porch. Insertion of new first floor window to the side elevation. (amended description)
25 Langton Avenue London N20 9DD · premises record
Officer Natasha Campbell
Approved
2022-12-12
More
Householder Application
Single storey rear and side extension following demolition of existing conservatory and part garage conversion
5 Langton Avenue London N20 9DD · premises record
Approved
2018-05-18
More
Householder
Formation of rear and side dormer windows to existing loft
9 Langton Avenue London N20 9DD · premises record
Officer Licensing Allocation
Approved
2016-05-12
More
Householder Application
Extension to roof including front dormer (off catslide roof) and rear dormer window to facilitate a loft conversion.
29 Langton Avenue, London, N20 9DD · premises record
Officer Erica Mason
Refused
2014-01-14
More
Householder Application
Single storey rear extension. First floor side extension over existing garage including new gable roof. Three roof lights in front roof slope. Two dormer windows in rear roof slope.
7 Langton Avenue, London, N20 9DD · premises record
Officer Malachy McGovern
Approved
2013-08-29
More
Householder Application
Extension to roof including rear dormer window to facilitate a loft conversion.
29 Langton Avenue, London, N20 9DD · premises record
Officer Rachel Caplin
Approved
2011-07-04
More
Proposed Lawful Development Certificate
Single storey side and first floor rear extension. Extensions to roof including side and rear dormers to facilitate a loft conversion. Extension to garage and front porch. Alterations to landscaping.
13 Langton Avenue, London, N20 9DD · premises record
Officer Mary Kearns
Approved
2009-02-11
More
Full 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 15 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 15 of 15 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 15 of 15 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 20 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Case officer on 2 applications
Case officer on 2 applications
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 2 applications
Case officer on 2 applications
Case officer on 1 application
Show all 9 rows
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Development
What could it become?
Planning precedent20 applications and 20 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy7 EPC records; ratings C: 1, D: 4, 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 ProOwnership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
No intent signal is currently recorded in this postcode.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.