Postcode record · Barnet
N12 9HF.
N12 9HF has 22 known premises and 30 planning records — 20 approved of 29 decided (69%). 14 EPC records.
Postcode N12 9HF · boundary not held, centred on the postcodeApprovedRefusedOther30 exact2 approximate32 on the map — every match
At a glance · this postcodeBarnet profile →
22
Premises
known addresses (UPRNs)
30
Applications
29 decided
69%
Approval rate
20 approved · 5 refused
14
EPC records
ratings B 1 · C 11 · D 2
32
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 9HF has 22 known premises and 30 planning records — 20 approved of 29 decided (69%). 14 EPC records.
Premises (18 of 22 shown)
Name
Details
UPRN 200058604
UPRN 200058605
UPRN 200058606
UPRN 200058607
UPRN 200058608
UPRN 200058609
UPRN 200058610
UPRN 200058611
UPRN 200058612
UPRN 200058613
UPRN 200058604
UPRN 200058605
UPRN 200058606
Show all 10 rows
UPRN 200058607
UPRN 200058608
UPRN 200058609
UPRN 200058610
UPRN 200058611
UPRN 200058612
UPRN 200058613
Planning
What happened?
30 planning applications across the postcode; 20 approved of 29 decided (69%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Part single, part two storey side and rear following demolition of existing conservatory
14 Hemingford Close London N12 9HF · premises record
Householder Application
Withdrawn
2026-04-09
Installation of new side window
6 Hemingford Close London N12 9HF · premises record
Householder Application
Approved
2025-12-12
Roof extension involving rear dormer window and 2no. front facing rooflights
14 Hemingford Close London N12 9HF · premises record
Proposed Lawful Development Certificate
Approved
2025-07-25
Change of use from single family dwelling house Class C3(a) into a children's home Class C3(b)
14 Hemingford Close London N12 9HF · premises record
Proposed Lawful Development Certificate
Approved
2024-06-25
Single storey rear extension. New front porch
8 Hemingford Close London N12 9HF · premises record
Householder Application
Approved
2022-12-15
Part single part two storey rear extension. Conversion of garage into habitable room including new window to replace existing door
10 Hemingford Close London N12 9HF · premises record
Householder Application
Approved
2022-10-24
Single storey rear extension with a proposed depth of 3.52 metres from original rear wall, eaves height of 2.6 metres and maximum height of 3.59 metres
8 Hemingford Close London N12 9HF · premises record
Prior Notification (Householder)
Withdrawn
2022-09-22
Single storey rear extension and new patio area following demolition of existing conservatory, two storey side extension, roof extension involving rear dormer and 2no rear facing roof lights
14 Hemingford Close London N12 9HF · premises record
Householder Application
Approved
2022-09-09
Part single part two storey side and rear and new patio area following demolition of existing conservatory. Basement extension with associated side, front and rear lightwells. Roof extension involving 2no rear dormers, 2no rear facing rooflights, and 6no front facing rooflights.
14 Hemingford Close London N12 9HF · premises record
Householder Application
Withdrawn
2022-07-04
1 x Chestnut Tree (applicants ref. T7) - Reduce by 2-2.5m. Standing in Group G7 of Tree Preservation Order.
15 Hemingford Close London N12 9HF · premises record
—
Unknown
2022-01-27
Part single, part two storey side and rear following demolition of existing conservatory
14 Hemingford Close London N12 9HF · premises record
Withdrawn
2026-04-09
More
Householder Application
Installation of new side window
6 Hemingford Close London N12 9HF · premises record
Approved
2025-12-12
More
Householder Application
Roof extension involving rear dormer window and 2no. front facing rooflights
14 Hemingford Close London N12 9HF · premises record
Approved
2025-07-25
More
Proposed Lawful Development Certificate
Show all 10 rows
Change of use from single family dwelling house Class C3(a) into a children's home Class C3(b)
14 Hemingford Close London N12 9HF · premises record
Approved
2024-06-25
More
Proposed Lawful Development Certificate
Single storey rear extension. New front porch
8 Hemingford Close London N12 9HF · premises record
Approved
2022-12-15
More
Householder Application
Part single part two storey rear extension. Conversion of garage into habitable room including new window to replace existing door
10 Hemingford Close London N12 9HF · premises record
Approved
2022-10-24
More
Householder Application
Single storey rear extension with a proposed depth of 3.52 metres from original rear wall, eaves height of 2.6 metres and maximum height of 3.59 metres
8 Hemingford Close London N12 9HF · premises record
Withdrawn
2022-09-22
More
Prior Notification (Householder)
Single storey rear extension and new patio area following demolition of existing conservatory, two storey side extension, roof extension involving rear dormer and 2no rear facing roof lights
14 Hemingford Close London N12 9HF · premises record
Approved
2022-09-09
More
Householder Application
Part single part two storey side and rear and new patio area following demolition of existing conservatory. Basement extension with associated side, front and rear lightwells. Roof extension involving 2no rear dormers, 2no rear facing rooflights, and 6no front facing rooflights.
14 Hemingford Close London N12 9HF · premises record
Withdrawn
2022-07-04
More
Householder Application
1 x Chestnut Tree (applicants ref. T7) - Reduce by 2-2.5m. Standing in Group G7 of Tree Preservation Order.
15 Hemingford Close London N12 9HF · premises record
Unknown
2022-01-27
More
—
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 22 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 22 of 22 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 22 of 22 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 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 3 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 precedent30 applications and 32 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy14 EPC records; ratings B: 1, C: 11, D: 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.
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.