Postcode record · Barnet
N3 1YN.
N3 1YN has 43 known premises and 59 planning records — 48 approved of 59 decided (81.4%). 27 EPC records.
Postcode N3 1YN · boundary not held, centred on the postcodeApprovedRefusedOther59 exact59 on the map — every match
At a glance · this postcodeBarnet profile →
43
Premises
known addresses (UPRNs)
59
Applications
59 decided
81.4%
Approval rate
48 approved · 9 refused
27
EPC records
ratings C 8 · D 10 · E 9
59
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?
N3 1YN has 43 known premises and 59 planning records — 48 approved of 59 decided (81.4%). 27 EPC records.
Premises (18 of 43 shown)
Name
Details
UPRN 200123729
UPRN 200123776
UPRN 200123778
UPRN 200123780
UPRN 200123782
UPRN 200123784
UPRN 200123786
UPRN 200123788
UPRN 200123790
UPRN 200123792
UPRN 200123729
UPRN 200123776
UPRN 200123778
Show all 10 rows
UPRN 200123780
UPRN 200123782
UPRN 200123784
UPRN 200123786
UPRN 200123788
UPRN 200123790
UPRN 200123792
Planning
What happened?
59 planning applications across the postcode; 48 approved of 59 decided (81.4%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension with skylight and new access steps following demolition of the existing conservatory and shed
75 Wentworth Avenue London N3 1YN · premises record
Applicant Mrs Grace Yiu · Officer Lottie Burden
Householder Application
Approved
2025-09-18
Single storey side and rear extension. Alterations to the existing patio area with new access steps
77 Wentworth Avenue London N3 1YN · premises record
Householder Application
Approved
2025-08-04
Erection of a rear outbuilding
103 Wentworth Avenue London N3 1YN · premises record
Proposed Lawful Development Certificate
Approved
2025-06-11
Single storey side/rear infill extension
99 Wentworth Avenue London N3 1YN · premises record
Householder Application
Approved
2023-07-25
Submission of details of conditions 10 (Refuse), 11 (Amenity Space - Sub-division) and 17 (Means of Enclosure) pursuant to planning permission 22/0307/FUL dated 29/11/22
41 Wentworth Avenue London N3 1YN · premises record
Conditions
Approved
2023-07-07
Removal of condition 19 (Design and Method Statements) of planning permission reference 22/0307/FUL dated 29/11/22 for 'Proposed basement and ground floor rear extension. Conversion of existing dwellinghouse into 2no. self-contained flats with associated amenity space, refuse storage and off-street parking.'
41 Wentworth Avenue London N3 1YN · premises record
Vary/Remove condition/Minor Mtl Amnd
Approved
2023-07-05
Submission of details of conditions 6 (Demolition and Construction Management and Logistics Plan), 8 (Noise Mitigation Measures Report) and 9 (Desktop Site Contamination Report) pursuant to planning permission 22/0307/FUL dated 29/11/22
41 Wentworth Avenue London N3 1YN · premises record
Conditions
Approved
2023-07-05
Single storey side/rear infill extension
99 Wentworth Avenue London N3 1YN · premises record
Householder Application
Approved
2023-05-23
Alteration and extension to side/rear roof. New side window
91 Wentworth Avenue London N3 1YN · premises record
Proposed Lawful Development Certificate
Approved
2022-09-09
Conversion of the existing garage into habitable room, insertion of window to replace the garage door. New front porch.
65 Wentworth Avenue London N3 1YN · premises record
Householder Application
Approved
2022-06-10
Single storey rear extension with skylight and new access steps following demolition of the existing conservatory and shed
75 Wentworth Avenue London N3 1YN · premises record
Applicant Mrs Grace Yiu · Officer Lottie Burden
Approved
2025-09-18
More
Householder Application
Single storey side and rear extension. Alterations to the existing patio area with new access steps
77 Wentworth Avenue London N3 1YN · premises record
Approved
2025-08-04
More
Householder Application
Erection of a rear outbuilding
103 Wentworth Avenue London N3 1YN · premises record
Approved
2025-06-11
More
Proposed Lawful Development Certificate
Show all 10 rows
Single storey side/rear infill extension
99 Wentworth Avenue London N3 1YN · premises record
Approved
2023-07-25
More
Householder Application
Submission of details of conditions 10 (Refuse), 11 (Amenity Space - Sub-division) and 17 (Means of Enclosure) pursuant to planning permission 22/0307/FUL dated 29/11/22
41 Wentworth Avenue London N3 1YN · premises record
Approved
2023-07-07
More
Conditions
Removal of condition 19 (Design and Method Statements) of planning permission reference 22/0307/FUL dated 29/11/22 for 'Proposed basement and ground floor rear extension. Conversion of existing dwellinghouse into 2no. self-contained flats with associated amenity space, refuse storage and off-street parking.'
41 Wentworth Avenue London N3 1YN · premises record
Approved
2023-07-05
More
Vary/Remove condition/Minor Mtl Amnd
Submission of details of conditions 6 (Demolition and Construction Management and Logistics Plan), 8 (Noise Mitigation Measures Report) and 9 (Desktop Site Contamination Report) pursuant to planning permission 22/0307/FUL dated 29/11/22
41 Wentworth Avenue London N3 1YN · premises record
Approved
2023-07-05
More
Conditions
Single storey side/rear infill extension
99 Wentworth Avenue London N3 1YN · premises record
Approved
2023-05-23
More
Householder Application
Alteration and extension to side/rear roof. New side window
91 Wentworth Avenue London N3 1YN · premises record
Approved
2022-09-09
More
Proposed Lawful Development Certificate
Conversion of the existing garage into habitable room, insertion of window to replace the garage door. New front porch.
65 Wentworth Avenue London N3 1YN · premises record
Approved
2022-06-10
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 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
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 precedent59 applications and 59 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy27 EPC records; ratings C: 8, D: 10, E: 9.
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.
9 intent signals recorded in this postcode
Repeat sale · Price decline · Long hold · Ageing director
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.