Postcode record · Barnet
N20 9DB.
N20 9DB has 12 known premises and 25 planning records — 22 approved of 25 decided (88%). 5 EPC records.
Postcode N20 9DB · boundary not held, centred on the postcodeApprovedRefusedOther25 exact2 approximate27 on the map — every match
At a glance · this postcodeBarnet profile →
12
Premises
known addresses (UPRNs)
25
Applications
25 decided
88%
Approval rate
22 approved · 2 refused
5
EPC records
ratings A 1 · D 2 · E 2
27
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 9DB has 12 known premises and 25 planning records — 22 approved of 25 decided (88%). 5 EPC records.
Premises
Name
Details
UPRN 200071176
UPRN 200071178
UPRN 200071180
UPRN 200071182
UPRN 200071184
UPRN 200071186
UPRN 200071188
UPRN 200071190
UPRN 200071192
UPRN 200071194
UPRN 200071176
UPRN 200071178
UPRN 200071180
Show all 10 rows
UPRN 200071182
UPRN 200071184
UPRN 200071186
UPRN 200071188
UPRN 200071190
UPRN 200071192
UPRN 200071194
Planning
What happened?
25 planning applications across the postcode; 22 approved of 25 decided (88%). Latest 25 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension following demolition of the existing conservatory with 1no. flat rooflight
20 Langton Avenue London N20 9DB · premises record
Householder Application
Approved
2025-11-06
Submission of details of Conditions 4 (Green Roof) and 6 (Replacement Trees) pursuant to planning permission 21/6581/HSE dated 30/03/22
16 Langton Avenue London N20 9DB · premises record
Conditions
Approved
2024-06-04
Installation of front access gates with associated railings and increase of wall height
22 Langton Avenue London N20 9DB · premises record
Householder Application
Approved
2024-01-24
Part single, part two storey rear extension with new terrace following demolition of existing rear extension. Conversion of garage into habitable room with front storage. New front porch. Changes to fenestration. Alterations to roof including raising of first floor extension roofs, 1no. rear dormer, front, side and rear rooflights. (amended description and plans)
22 Langton Avenue London N20 9DB · premises record
Householder Application
Approved
2023-10-02
Part single, part two storey rear extension with new terrace following demolition of existing rear extension. Conversion of garage into habitable room. New front porch. Roof extension including crown roof, 2no. rear dormer windows, 2no. front, 4no. side facing and 4no. flat rooflights. Changes to fenestration to all elevations
22 Langton Avenue London N20 9DB · premises record
Householder Application
Refused
2023-05-09
Part single, part two storey rear extension with new terrace following demolition of existing rear extension. Conversion of garage into habitable room, insertion of window to replace garage door. New front porch. Changes to fenestration
22 Langton Avenue London N20 9DB · premises record
Householder Application
Approved
2023-04-17
Single storey rear extension after demolition of existing rear extension. Replacement of existing terrace with alterations. Conversion of garage into habitable space, replacement of existing garage door with window. Replacement balustrade to existing balcony (Amended plans) (Amended Description)
16 Langton Avenue London N20 9DB · premises record
Householder Application
Approved
2021-12-16
Single storey rear extension with new access steps and associated railing
12 Langton Avenue London N20 9DB · premises record
Applicant Mr P Dodge · Agent Mr M Ricketts
Householder Application
Approved
2019-08-08
Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 3 metres and maximum height of 3 metres.
12 Langton Avenue London N20 9DB · premises record
Prior Notification (Householder)
Refused
2019-06-03
Roof extension involving rear dormer window with juliette balcony and 1no side rooflight
12 Langton Avenue London N20 9DB · premises record
Proposed Lawful Development Certificate
Approved
2019-05-22
Single storey rear extension following demolition of the existing conservatory with 1no. flat rooflight
20 Langton Avenue London N20 9DB · premises record
Approved
2025-11-06
More
Householder Application
Submission of details of Conditions 4 (Green Roof) and 6 (Replacement Trees) pursuant to planning permission 21/6581/HSE dated 30/03/22
16 Langton Avenue London N20 9DB · premises record
Approved
2024-06-04
More
Conditions
Installation of front access gates with associated railings and increase of wall height
22 Langton Avenue London N20 9DB · premises record
Approved
2024-01-24
More
Householder Application
Show all 10 rows
Part single, part two storey rear extension with new terrace following demolition of existing rear extension. Conversion of garage into habitable room with front storage. New front porch. Changes to fenestration. Alterations to roof including raising of first floor extension roofs, 1no. rear dormer, front, side and rear rooflights. (amended description and plans)
22 Langton Avenue London N20 9DB · premises record
Approved
2023-10-02
More
Householder Application
Part single, part two storey rear extension with new terrace following demolition of existing rear extension. Conversion of garage into habitable room. New front porch. Roof extension including crown roof, 2no. rear dormer windows, 2no. front, 4no. side facing and 4no. flat rooflights. Changes to fenestration to all elevations
22 Langton Avenue London N20 9DB · premises record
Refused
2023-05-09
More
Householder Application
Part single, part two storey rear extension with new terrace following demolition of existing rear extension. Conversion of garage into habitable room, insertion of window to replace garage door. New front porch. Changes to fenestration
22 Langton Avenue London N20 9DB · premises record
Approved
2023-04-17
More
Householder Application
Single storey rear extension after demolition of existing rear extension. Replacement of existing terrace with alterations. Conversion of garage into habitable space, replacement of existing garage door with window. Replacement balustrade to existing balcony (Amended plans) (Amended Description)
16 Langton Avenue London N20 9DB · premises record
Approved
2021-12-16
More
Householder Application
Single storey rear extension with new access steps and associated railing
12 Langton Avenue London N20 9DB · premises record
Applicant Mr P Dodge · Agent Mr M Ricketts
Approved
2019-08-08
More
Householder Application
Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 3 metres and maximum height of 3 metres.
12 Langton Avenue London N20 9DB · premises record
Refused
2019-06-03
More
Prior Notification (Householder)
Roof extension involving rear dormer window with juliette balcony and 1no side rooflight
12 Langton Avenue London N20 9DB · premises record
Approved
2019-05-22
More
Proposed Lawful Development Certificate
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 12 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 12 of 12 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 12 of 12 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 25 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 3 applications
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
Agent on 4 applications
Applicant on 3 applications
Applicant on 3 applications
Applicant on 2 applications
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
Agent on 4 applications
Development
What could it become?
Planning precedent25 applications and 27 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy5 EPC records; ratings A: 1, D: 2, 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.