Postcode record · Barnet
N12 9EH.
N12 9EH has 28 known premises and 7 planning records — 3 approved of 7 decided (42.9%). 9 EPC records.
Postcode N12 9EH · boundary not held, centred on the postcodeApprovedRefusedOther7 exact7 on the map — every match
At a glance · this postcodeBarnet profile →
28
Premises
known addresses (UPRNs)
7
Applications
7 decided
42.9%
Approval rate
3 approved · 4 refused
9
EPC records
ratings C 8 · D 1
7
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 9EH has 28 known premises and 7 planning records — 3 approved of 7 decided (42.9%). 9 EPC records.
Premises (18 of 28 shown)
Name
Details
UPRN 200019590
UPRN 200019591
UPRN 200019592
UPRN 200019593
UPRN 200019594
UPRN 200019595
UPRN 200139801
UPRN 200139802
UPRN 200139803
UPRN 200019590
UPRN 200019591
Show all 10 rows
UPRN 200019592
UPRN 200019593
UPRN 200019594
UPRN 200019595
UPRN 200139801
UPRN 200139802
UPRN 200139803
Planning
What happened?
7 planning applications across the postcode; 3 approved of 7 decided (42.9%). Latest 7 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
First floor rear extension with two obscured windows and flat roof (amended description and drawings).
5 Castle Mews London N12 9EH · premises record
Full Application
Approved
2023-05-24
Change of Use from Offices (Class B1(a)) to 1no Dwellinghouses (Class C3)
5 Castle Mews London N12 9EH · premises record
Prior Notification (Class E to Resi)
Refused
2023-03-31
Change of Use from Offices (Class B1(a)) to 1no Dwellinghouses (Class C3)
5 Castle Mews London N12 9EH · premises record
Applicant Mr Steve Harvey · Officer Mansoor Cohen
Prior Notification (Class E to Resi)
Refused
2022-09-09
Change of Use from Offices (Class B1(a) to 1no Dwellinghouses (Class C3).
5 Castle Mews London N12 9EH · premises record
Full Application
Refused
2022-01-21
Alteration to fenestration to front elevation, insertion of 4no roof lights to front roof slope
3 Castle Mews London N12 9EH · premises record
Full Application
Approved
2015-10-12
Change of use from Use Class B1 (office) to Use Class C3 (residential)
3 Castle Mews London N12 9EH · premises record
Prior Notification (Office to Res)
Approved
2015-09-14
First floor extension (over existing) involving formation of terrace area. Enlargement of entrance porch to form disabled access with new staircase to first floor.
1 Castle Mews Castle Road London N12 9EH · premises record
Applicant S. Jones
Full Application
Refused
2002-06-18
First floor rear extension with two obscured windows and flat roof (amended description and drawings).
5 Castle Mews London N12 9EH · premises record
Approved
2023-05-24
More
Full Application
Change of Use from Offices (Class B1(a)) to 1no Dwellinghouses (Class C3)
5 Castle Mews London N12 9EH · premises record
Refused
2023-03-31
More
Prior Notification (Class E to Resi)
Change of Use from Offices (Class B1(a)) to 1no Dwellinghouses (Class C3)
5 Castle Mews London N12 9EH · premises record
Applicant Mr Steve Harvey · Officer Mansoor Cohen
Refused
2022-09-09
More
Prior Notification (Class E to Resi)
Show all 7 rows
Change of Use from Offices (Class B1(a) to 1no Dwellinghouses (Class C3).
5 Castle Mews London N12 9EH · premises record
Refused
2022-01-21
More
Full Application
Alteration to fenestration to front elevation, insertion of 4no roof lights to front roof slope
3 Castle Mews London N12 9EH · premises record
Approved
2015-10-12
More
Full Application
Change of use from Use Class B1 (office) to Use Class C3 (residential)
3 Castle Mews London N12 9EH · premises record
Approved
2015-09-14
More
Prior Notification (Office to Res)
First floor extension (over existing) involving formation of terrace area. Enlargement of entrance porch to form disabled access with new staircase to first floor.
1 Castle Mews Castle Road London N12 9EH · premises record
Applicant S. Jones
Refused
2002-06-18
More
Full 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 28 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 28 of 28 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 28 of 28 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 7 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 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 2 applications
Agent on 1 application
Agent on 1 application
Agent on 1 application
Case officer on 2 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Agent on 2 applications
Agent on 1 application
Agent on 1 application
Agent on 1 application
Case officer on 2 applications
Development
What could it become?
Planning precedent7 applications and 7 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy9 EPC records; ratings C: 8, D: 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.
No intent signal is currently recorded in this postcode.
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.