Postcode record · Barnet
N12 9HE.
N12 9HE has 50 known premises and 35 planning records — 26 approved of 35 decided (74.3%). 31 EPC records.
Postcode N12 9HE · boundary not held, centred on the postcodeApprovedRefusedOther35 exact35 on the map — every match
At a glance · this postcodeBarnet profile →
50
Premises
known addresses (UPRNs)
35
Applications
35 decided
74.3%
Approval rate
26 approved · 4 refused
31
EPC records
ratings C 5 · D 20 · E 6
35
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?
N12 9HE has 50 known premises and 35 planning records — 26 approved of 35 decided (74.3%). 31 EPC records.
Premises (18 of 50 shown)
Name
Details
UPRN 200093369
UPRN 200093371
UPRN 200093372
UPRN 200093374
UPRN 200093376
UPRN 200093378
UPRN 200093380
UPRN 200093384
UPRN 200093386
UPRN 200093369
UPRN 200093371
UPRN 200093372
Show all 10 rows
UPRN 200093374
UPRN 200093376
UPRN 200093378
UPRN 200093380
UPRN 200093384
UPRN 200093386
Planning
What happened?
35 planning applications across the postcode; 26 approved of 35 decided (74.3%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Roof extension with rear domer window, juliette balcony and 3no. front facing roolights. Single storey rear extension with new patio area
65 Petworth Road London N12 9HE · premises record
Proposed Lawful Development Certificate
Approved
2024-12-23
Single storey rear extension with 2no. lantern rooflights
23 Petworth Road London N12 9HE · premises record
Proposed Lawful Development Certificate
Approved
2023-04-17
Part single, part two storey rear extension with new raised patio area, roof above flat section, and single storey side extension following demolition of the existing garage and conservatory. Changes to front window openings and insulated render. Installation of 1no. front-facing rooflight.
77 Petworth Road London N12 9HE · premises record
Householder Application
Approved
2023-04-12
Roof extension involving rear dormer window and 2no. front facing rooflights
37 Petworth Road London N12 9HE · premises record
Proposed Lawful Development Certificate
Approved
2023-03-16
Single storey rear extension with a proposed depth of 5.00 metres from original rear wall, maximum height of 3.00 metres and eaves height of 2.95metres.
37 Petworth Road London N12 9HE · premises record
Prior Notification (Householder)
Not required
2023-03-16
Single storey rear extension with 2no. roof lights
69 Petworth Road London N12 9HE · premises record
Householder Application
Approved
2023-03-03
Erection of a rear outbuilding
77 Petworth Road London N12 9HE · premises record
Proposed Lawful Development Certificate
Approved
2022-12-14
Roof extension involving hip to gable, rear dormer and 2no front facing rooflights
77 Petworth Road London N12 9HE · premises record
Proposed Lawful Development Certificate
Approved
2022-06-14
Roof extension involving rear dormer window and juliette balcony and 2no. front facing rooflights
31 Petworth Road London N12 9HE · premises record
Proposed Lawful Development Certificate
Approved
2022-04-22
Single storey rear extension
7 Petworth Road London N12 9HE · premises record
Householder Application
Approved
2021-10-27
Roof extension with rear domer window, juliette balcony and 3no. front facing roolights. Single storey rear extension with new patio area
65 Petworth Road London N12 9HE · premises record
Approved
2024-12-23
More
Proposed Lawful Development Certificate
Single storey rear extension with 2no. lantern rooflights
23 Petworth Road London N12 9HE · premises record
Approved
2023-04-17
More
Proposed Lawful Development Certificate
Part single, part two storey rear extension with new raised patio area, roof above flat section, and single storey side extension following demolition of the existing garage and conservatory. Changes to front window openings and insulated render. Installation of 1no. front-facing rooflight.
77 Petworth Road London N12 9HE · premises record
Approved
2023-04-12
More
Householder Application
Show all 10 rows
Roof extension involving rear dormer window and 2no. front facing rooflights
37 Petworth Road London N12 9HE · premises record
Approved
2023-03-16
More
Proposed Lawful Development Certificate
Single storey rear extension with a proposed depth of 5.00 metres from original rear wall, maximum height of 3.00 metres and eaves height of 2.95metres.
37 Petworth Road London N12 9HE · premises record
Not required
2023-03-16
More
Prior Notification (Householder)
Single storey rear extension with 2no. roof lights
69 Petworth Road London N12 9HE · premises record
Approved
2023-03-03
More
Householder Application
Erection of a rear outbuilding
77 Petworth Road London N12 9HE · premises record
Approved
2022-12-14
More
Proposed Lawful Development Certificate
Roof extension involving hip to gable, rear dormer and 2no front facing rooflights
77 Petworth Road London N12 9HE · premises record
Approved
2022-06-14
More
Proposed Lawful Development Certificate
Roof extension involving rear dormer window and juliette balcony and 2no. front facing rooflights
31 Petworth Road London N12 9HE · premises record
Approved
2022-04-22
More
Proposed Lawful Development Certificate
Single storey rear extension
7 Petworth Road London N12 9HE · premises record
Approved
2021-10-27
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 50 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 50 of 50 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 50 of 50 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 2 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 2 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 precedent35 applications and 35 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy31 EPC records; ratings C: 5, D: 20, E: 6.
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.
5 intent signals recorded in this postcode
Charge registered · EPC F/G · Price decline · Long hold
Subscribe to see the signals →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.