Postcode record · Barnet
N14 7NJ.
N14 7NJ has 43 known premises and 42 planning records — 25 approved of 42 decided (59.5%). 16 EPC records.
Postcode N14 7NJ · boundary not held, centred on the postcodeApprovedRefusedOther42 on the map — every match
At a glance · this postcodeBarnet profile →
43
Premises
known addresses (UPRNs)
42
Applications
42 decided
59.5%
Approval rate
25 approved · 10 refused
42 days
Median decision time
average 42 days · 42 dated decisions
16
EPC records
ratings B 1 · C 2 · D 6 · E 7
42
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?
N14 7NJ has 43 known premises and 42 planning records — 25 approved of 42 decided (59.5%). 16 EPC records.
Premises (18 of 43 shown)
Name
Details
UPRN 200077523
UPRN 200077525
UPRN 200077527
UPRN 200077529
UPRN 200077531
UPRN 200077533
UPRN 200077535
UPRN 200077537
UPRN 200077539
UPRN 200077541
UPRN 200077523
UPRN 200077525
UPRN 200077527
Show all 10 rows
UPRN 200077529
UPRN 200077531
UPRN 200077533
UPRN 200077535
UPRN 200077537
UPRN 200077539
UPRN 200077541
Planning
What happened?
42 planning applications across the postcode; 25 approved of 42 decided (59.5%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension with a depth of 6.00m, a maximum height of 3.30m and an eaves height of 2.90m, following the demolition of the existing extension.
75 Mandeville Road London N14 7NJ · premises record
Officer Tabitha Hannam
Prior Notification (Householder)
Not required
2025-05-16
Single storey rear infill extension
17 Mandeville Road London N14 7NJ · premises record
Officer Cheryl Yeung
Householder Application
Approved
2025-05-13
Single storey front extension to garage and conversion into habitable room insertion of window and door to replace garage door. First floor side extension
71 Mandeville Road London N14 7NJ · premises record
Officer Basya Markovits
Householder Application
Approved
2023-03-20
Roof extension involving hip to gable, rear dormer, and 4no front facing rooflights following removal of upper part of chimneys
25 Mandeville Road London N14 7NJ · premises record
Officer Henry Yeung
Proposed Lawful Development Certificate
Approved
2022-07-25
Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no front facing rooflights
15 Mandeville Road London N14 7NJ · premises record
—
Approved
2021-05-21
Conversion of the existing garage into habitable room with a pitched and roof and a dormer window, insertion of window and door to replace garage door
71 Mandeville Road London N14 7NJ · premises record
Officer Jade Gillespie
Proposed Lawful Development Certificate
Refused
2021-05-04
Roof extension involving hip to gable, rear dormer windows with Juliet balcony and 3no front facing rooflights
15 Mandeville Road London N14 7NJ · premises record
Officer Helen McGuinness
Proposed Lawful Development Certificate
Refused
2020-08-31
Single storey rear extension following demolition of the existing conservatory
3 Mandeville Road London N14 7NJ · premises record
Householder Application
Approved
2019-02-25
1 x Oak (applicant's ref. T1) - Fell
37 Mandeville Road London N14 7NJ · premises record
Officer Edward Jones
Treeworks: Fell TPO tree(s)
Not required
2018-12-07
Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 2.925 metres and maximum height of 3 metres.
77 Mandeville Road London N14 7NJ · premises record
Officer James Kavanagh
Prior Notification (Householder)
Not required
2018-09-13
Single storey rear extension with a depth of 6.00m, a maximum height of 3.30m and an eaves height of 2.90m, following the demolition of the existing extension.
75 Mandeville Road London N14 7NJ · premises record
Officer Tabitha Hannam
Not required
2025-05-16
More
Prior Notification (Householder)
Single storey rear infill extension
17 Mandeville Road London N14 7NJ · premises record
Officer Cheryl Yeung
Approved
2025-05-13
More
Householder Application
Single storey front extension to garage and conversion into habitable room insertion of window and door to replace garage door. First floor side extension
71 Mandeville Road London N14 7NJ · premises record
Officer Basya Markovits
Approved
2023-03-20
More
Householder Application
Show all 10 rows
Roof extension involving hip to gable, rear dormer, and 4no front facing rooflights following removal of upper part of chimneys
25 Mandeville Road London N14 7NJ · premises record
Officer Henry Yeung
Approved
2022-07-25
More
Proposed Lawful Development Certificate
Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no front facing rooflights
15 Mandeville Road London N14 7NJ · premises record
Approved
2021-05-21
More
—
Conversion of the existing garage into habitable room with a pitched and roof and a dormer window, insertion of window and door to replace garage door
71 Mandeville Road London N14 7NJ · premises record
Officer Jade Gillespie
Refused
2021-05-04
More
Proposed Lawful Development Certificate
Roof extension involving hip to gable, rear dormer windows with Juliet balcony and 3no front facing rooflights
15 Mandeville Road London N14 7NJ · premises record
Officer Helen McGuinness
Refused
2020-08-31
More
Proposed Lawful Development Certificate
Single storey rear extension following demolition of the existing conservatory
3 Mandeville Road London N14 7NJ · premises record
Approved
2019-02-25
More
Householder Application
1 x Oak (applicant's ref. T1) - Fell
37 Mandeville Road London N14 7NJ · premises record
Officer Edward Jones
Not required
2018-12-07
More
Treeworks: Fell TPO tree(s)
Single storey rear extension with a proposed depth of 6 metres from original rear wall, eaves height of 2.925 metres and maximum height of 3 metres.
77 Mandeville Road London N14 7NJ · premises record
Officer James Kavanagh
Not required
2018-09-13
More
Prior Notification (Householder)
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 43 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 43 of 43 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 43 of 43 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
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 1 application
Case officer on 1 application
Case officer on 2 applications
Case officer on 1 application
Case officer on 1 application
Show all 10 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
Case officer on 1 application
Development
What could it become?
Planning precedent42 applications and 42 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy16 EPC records; ratings B: 1, C: 2, D: 6, E: 7.
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.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.