Postcode record · Barnet
N20 9AT.
N20 9AT has 14 known premises and 92 planning records — 65 approved of 92 decided (70.7%). 8 EPC records.
Postcode N20 9AT · boundary not held, centred on the postcodeApprovedRefusedOther92 exact92 on the map — every match
At a glance · this postcodeBarnet profile →
14
Premises
known addresses (UPRNs)
92
Applications
92 decided
70.7%
Approval rate
65 approved · 19 refused
8
EPC records
ratings B 1 · D 2 · E 2 · F 3
92
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 9AT has 14 known premises and 92 planning records — 65 approved of 92 decided (70.7%). 8 EPC records.
Premises
Name
Details
UPRN 200087852
UPRN 200087853
UPRN 200087986
UPRN 200087988
UPRN 200087990
UPRN 200087992
UPRN 200087994
UPRN 200087996
UPRN 200087998
UPRN 200088000
UPRN 200087852
UPRN 200087853
UPRN 200087986
Show all 10 rows
UPRN 200087988
UPRN 200087990
UPRN 200087992
UPRN 200087994
UPRN 200087996
UPRN 200087998
UPRN 200088000
Planning
What happened?
92 planning applications across the postcode; 65 approved of 92 decided (70.7%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension with 2no. lantern rooflights following demolition of existing rear extension. Insertion of 1no. rooflight to existing single storey side flat roof. Erection of pergola. New rear patio and steps to garden. Conversion of garage into habitable room including single storey front extension with a new pitched roof and insertion of window to side elevation. (AMENDED DESCRIPTION)
53A Oakleigh Park North London N20 9AT · premises record
Householder Application
Approved
2025-12-08
Non material amendment to planning permission 24/1108/HSE dated 18/03/2024 for `Conversion of the existing garage into habitable room including front extension to the existing garage, insertion of window to replace the garage door. Conversion of garage flat roof to a pitched roof with 2no. rooflights.` Amendments include reinstatement of the front garage door, new side bay window to garage conversion, existing side door to be moved forward, insertion of 2no. rooflights to the existing side extension and new side window opening to replace existing side doors
53A Oakleigh Park North London N20 9AT · premises record
Non Material Amendment
Withdrawn
2024-12-03
Single storey rear exension with 3no. rooflights. New front porch
45 Oakleigh Park North London N20 9AT · premises record
Householder Application
Approved
2024-09-23
1 x Chestnut - Remove. Exempt work. Standing in Group G35 of Tree Preservation Order.
45A Oakleigh Park North London N20 9AT · premises record
Applicant Ben And Jenny Moxham Francis · Officer Jonathan Mills
Works to TPO trees
Not required
2024-06-03
Conversion of the existing garage into habitable room including front extension to the existing garage, insertion of window to replace the garage door. Conversion of garage flat roof to a pitched roof with 2no. rooflights. (Amended Description)
53A Oakleigh Park North London N20 9AT · premises record
Householder Application
Approved
2024-03-18
Conversion of existing garage into habitable room and replacement of garage door with a window
53A Oakleigh Park North London N20 9AT · premises record
Householder Application
Approved
2023-09-26
1 x Lawson Cypress (applicants ref. T4) - Crown reduction of 4 metres (15%). Standing in T39 of Tree Preservation Order.
61 Oakleigh Park North London N20 9AT · premises record
Works to TPO trees
Refused
2023-09-20
Single storey rear extension. Single storey front infill extension. Creation of an additional floor and roof extension involving raising the ridge height and 2no.rear box dormer extensions (amended description).
43 Oakleigh Park North London N20 9AT · premises record
Householder Application
Approved
2022-05-12
1 x Oak tree -1-2m crown reduction. Remove all major deadwood. Standing in T73 of Tree Preservation Order.
43 Oakleigh Park North London N20 9AT · premises record
Works to TPO trees
Approved
2022-02-09
1 x Lime (Rear Garden) - Reduce back to previous reductions points. T72 of Tree Preservation Order; (amended specification)
45A Oakleigh Park North London N20 9AT · premises record
Applicant Mr Maurice Francis · Officer Glenn Kelly
Works to TPO trees
Approved
2021-11-02
Single storey rear extension with 2no. lantern rooflights following demolition of existing rear extension. Insertion of 1no. rooflight to existing single storey side flat roof. Erection of pergola. New rear patio and steps to garden. Conversion of garage into habitable room including single storey front extension with a new pitched roof and insertion of window to side elevation. (AMENDED DESCRIPTION)
53A Oakleigh Park North London N20 9AT · premises record
Approved
2025-12-08
More
Householder Application
Non material amendment to planning permission 24/1108/HSE dated 18/03/2024 for `Conversion of the existing garage into habitable room including front extension to the existing garage, insertion of window to replace the garage door. Conversion of garage flat roof to a pitched roof with 2no. rooflights.` Amendments include reinstatement of the front garage door, new side bay window to garage conversion, existing side door to be moved forward, insertion of 2no. rooflights to the existing side extension and new side window opening to replace existing side doors
53A Oakleigh Park North London N20 9AT · premises record
Withdrawn
2024-12-03
More
Non Material Amendment
Single storey rear exension with 3no. rooflights. New front porch
45 Oakleigh Park North London N20 9AT · premises record
Approved
2024-09-23
More
Householder Application
Show all 10 rows
1 x Chestnut - Remove. Exempt work. Standing in Group G35 of Tree Preservation Order.
45A Oakleigh Park North London N20 9AT · premises record
Applicant Ben And Jenny Moxham Francis · Officer Jonathan Mills
Not required
2024-06-03
More
Works to TPO trees
Conversion of the existing garage into habitable room including front extension to the existing garage, insertion of window to replace the garage door. Conversion of garage flat roof to a pitched roof with 2no. rooflights. (Amended Description)
53A Oakleigh Park North London N20 9AT · premises record
Approved
2024-03-18
More
Householder Application
Conversion of existing garage into habitable room and replacement of garage door with a window
53A Oakleigh Park North London N20 9AT · premises record
Approved
2023-09-26
More
Householder Application
1 x Lawson Cypress (applicants ref. T4) - Crown reduction of 4 metres (15%). Standing in T39 of Tree Preservation Order.
61 Oakleigh Park North London N20 9AT · premises record
Refused
2023-09-20
More
Works to TPO trees
Single storey rear extension. Single storey front infill extension. Creation of an additional floor and roof extension involving raising the ridge height and 2no.rear box dormer extensions (amended description).
43 Oakleigh Park North London N20 9AT · premises record
Approved
2022-05-12
More
Householder Application
1 x Oak tree -1-2m crown reduction. Remove all major deadwood. Standing in T73 of Tree Preservation Order.
43 Oakleigh Park North London N20 9AT · premises record
Approved
2022-02-09
More
Works to TPO trees
1 x Lime (Rear Garden) - Reduce back to previous reductions points. T72 of Tree Preservation Order; (amended specification)
45A Oakleigh Park North London N20 9AT · premises record
Applicant Mr Maurice Francis · Officer Glenn Kelly
Approved
2021-11-02
More
Works to TPO trees
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 14 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 14 of 14 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 14 of 14 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 30 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 3 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 3 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 precedent92 applications and 92 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy8 EPC records; ratings B: 1, D: 2, E: 2, F: 3.
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.