Postcode record · Barnet
N20 9DJ.
N20 9DJ has 12 known premises and 29 planning records — 21 approved of 27 decided (77.8%). 6 EPC records.
Postcode N20 9DJ · boundary not held, centred on the postcodeApprovedRefusedOther29 exact29 on the map — every match
At a glance · this postcodeBarnet profile →
12
Premises
known addresses (UPRNs)
29
Applications
27 decided
77.8%
Approval rate
21 approved · 6 refused
6
EPC records
ratings C 1 · D 4 · F 1
29
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 9DJ has 12 known premises and 29 planning records — 21 approved of 27 decided (77.8%). 6 EPC records.
Premises
Name
Details
UPRN 200045035
UPRN 200045037
UPRN 200045039
UPRN 200045041
UPRN 200045043
UPRN 200045045
UPRN 200045047
UPRN 200045049
UPRN 200045051
UPRN 200045053
UPRN 200045035
UPRN 200045037
UPRN 200045039
Show all 10 rows
UPRN 200045041
UPRN 200045043
UPRN 200045045
UPRN 200045047
UPRN 200045049
UPRN 200045051
UPRN 200045053
Planning
What happened?
29 planning applications across the postcode; 21 approved of 27 decided (77.8%). Latest 29 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 2.60 metres, following partial demolition of existing garage.
41 Friern Mount Drive London N20 9DJ · premises record
Prior Notification (Householder)
Pending Consideration
2026-05-27
Single storey side/rear infill extension, following demolition of the existing covered porch (amended)
41 Friern Mount Drive London N20 9DJ · premises record
Proposed Lawful Development Certificate
Unknown
2026-05-19
Raising flat roof of existing outbuilding
43 Friern Mount Drive London N20 9DJ · premises record
Householder Application
Approved
2025-02-12
Single storey rear extension following demolition of existing rear extension. Conversion of garage into habitable room including new window to replace garage door. Insertion of new window to side elevation at first floor level
35 Friern Mount Drive London N20 9DJ · premises record
Householder Application
Approved
2022-01-10
Single storey rear extension with a proposed depth of 6.00 metres from original rear wall, eaves height of 4.00 metres and maximum height of 4.00 metres.
43 Friern Mount Drive London N20 9DJ · premises record
Applicant Chris Milller · Officer Helen McGuinness
Prior Notification (Householder)
Refused
2020-05-01
Roof extension involving side and rear dormer windows. Conversion of the existing garage into habitable room, insertion of window to replace the existing garage door
45 Friern Mount Drive London N20 9DJ · premises record
Householder Application
Refused
2019-08-22
Two storey side extension, conversion of the garage including replacement of the garage door with windows, replacement of the rear patio doors, new patio door at the rear and solar panels at the rear roofslope.
51 Friern Mount Drive London N20 9DJ · premises record
Householder Application
Approved
2019-06-14
Roof extension involving rear dormer window
47 Friern Mount Drive London N20 9DJ · premises record
Proposed Lawful Development Certificate
Approved
2019-05-21
New front porch. Part single, part two storey rear extension. Alterations to fenestration
47 Friern Mount Drive London N20 9DJ · premises record
Householder Application
Approved
2019-04-11
Installation of new automatic sliding gate. New front bay window. New front hardstanding to provide off-street parking
47 Friern Mount Drive London N20 9DJ · premises record
Householder Application
Approved
2019-01-25
Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 4.00 metres and eaves height of 2.60 metres, following partial demolition of existing garage.
41 Friern Mount Drive London N20 9DJ · premises record
Pending Consideration
2026-05-27
More
Prior Notification (Householder)
Single storey side/rear infill extension, following demolition of the existing covered porch (amended)
41 Friern Mount Drive London N20 9DJ · premises record
Unknown
2026-05-19
More
Proposed Lawful Development Certificate
Raising flat roof of existing outbuilding
43 Friern Mount Drive London N20 9DJ · premises record
Approved
2025-02-12
More
Householder Application
Show all 10 rows
Single storey rear extension following demolition of existing rear extension. Conversion of garage into habitable room including new window to replace garage door. Insertion of new window to side elevation at first floor level
35 Friern Mount Drive London N20 9DJ · premises record
Approved
2022-01-10
More
Householder Application
Single storey rear extension with a proposed depth of 6.00 metres from original rear wall, eaves height of 4.00 metres and maximum height of 4.00 metres.
43 Friern Mount Drive London N20 9DJ · premises record
Applicant Chris Milller · Officer Helen McGuinness
Refused
2020-05-01
More
Prior Notification (Householder)
Roof extension involving side and rear dormer windows. Conversion of the existing garage into habitable room, insertion of window to replace the existing garage door
45 Friern Mount Drive London N20 9DJ · premises record
Refused
2019-08-22
More
Householder Application
Two storey side extension, conversion of the garage including replacement of the garage door with windows, replacement of the rear patio doors, new patio door at the rear and solar panels at the rear roofslope.
51 Friern Mount Drive London N20 9DJ · premises record
Approved
2019-06-14
More
Householder Application
Roof extension involving rear dormer window
47 Friern Mount Drive London N20 9DJ · premises record
Approved
2019-05-21
More
Proposed Lawful Development Certificate
New front porch. Part single, part two storey rear extension. Alterations to fenestration
47 Friern Mount Drive London N20 9DJ · premises record
Approved
2019-04-11
More
Householder Application
Installation of new automatic sliding gate. New front bay window. New front hardstanding to provide off-street parking
47 Friern Mount Drive London N20 9DJ · premises record
Approved
2019-01-25
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 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 29 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 4 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 1 application
Applicant on 4 applications
Applicant on 2 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
Applicant on 1 application
Development
What could it become?
Planning precedent29 applications and 29 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy6 EPC records; ratings C: 1, D: 4, F: 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
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.