Postcode record · Barnet
N3 1YH.
N3 1YH has 17 known premises and 11 planning records — 5 approved of 10 decided (50%). 13 EPC records.
Postcode N3 1YH · boundary not held, centred on the postcodeApprovedRefusedOther11 exact11 on the map — every match
At a glance · this postcodeBarnet profile →
17
Premises
known addresses (UPRNs)
11
Applications
10 decided
50%
Approval rate
5 approved · 3 refused
13
EPC records
ratings C 5 · D 7 · E 1
11
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 1YH has 17 known premises and 11 planning records — 5 approved of 10 decided (50%). 13 EPC records.
Premises
Name
Details
UPRN 200123889
UPRN 200123890
UPRN 200123891
UPRN 200123892
UPRN 200123893
UPRN 200123894
UPRN 200123895
UPRN 200123896
UPRN 200123897
UPRN 200123898
UPRN 200123889
UPRN 200123890
UPRN 200123891
Show all 10 rows
UPRN 200123892
UPRN 200123893
UPRN 200123894
UPRN 200123895
UPRN 200123896
UPRN 200123897
UPRN 200123898
Planning
What happened?
11 planning applications across the postcode; 5 approved of 10 decided (50%). Latest 11 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Submission of details of condition 6 (Obscure Glazing) 7 (Cycle Parking and Storage) 8 (Amenity Space) 9 (Enclosures- Refuse) 10 (Emissions-Carbon Dioxide) 11 (Sound Insulation Certs) pursuant to planning appeal APP/N5090/W/22/3295798 dated 31/01/2023 planning ref 21/4025/FUL
43 Wentworth Park London N3 1YH · premises record
Conditions
Pending Consideration
2026-01-05
Variation of condition 1 (Approved Plans) of appeal decision reference APP/N5090/W/22/3295798 dated 31/01/23 (planning ref. 21/4025/FUL) for 'Conversion of existing property into 4no self contained flats. Single storey side and rear extension. Alteration and extensions to roof to include rear dormer window and 2no front facing rooflights. Associated cycle and refuse storage.' Variation to include: Addition of a first floor window to side elevation facing No. 41; Alterations to second floor layout; Removal of pergolas
43 Wentworth Park London N3 1YH · premises record
Vary/Remove condition/Minor Mtl Amnd
Approved
2025-10-13
Conversion of the existing dwelling into 4no self contained flats including single storey side and rear extension. Roof extension including rear dormer window and 2no front facing rooflights. Associated cycle and refuse/recycling storage. (Retrospective Application)
43 Wentworth Park London N3 1YH · premises record
Retention/Continued Use
Withdrawn
2024-09-16
Variation of condition 2 (Plan Numbers) of appeal decision APP/N5090/W/22/3295798 dated 30/01/23 (planning reference 21/4025/FUL) for 'Conversion of existing property into 4no self contained flats. Single storey side and rear extension. Alteration and extensions to roof to include rear dormer window and 2no front facing rooflights. Associated cycle and refuse storage.' Amendments include changes to the single-storey side and rear extension roof, addition of two patios and 1 pergola structure to the rear, alterations to rear dormer window, internal alterations to flats layout
43 Wentworth Park London N3 1YH · premises record
Vary/Remove condition/Minor Mtl Amnd
Withdrawn
2024-07-16
Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights
61 Wentworth Park London N3 1YH · premises record
Proposed Lawful Development Certificate
Approved
2023-05-09
Roof extension involving hip to gable, rear dormer and 3no. front facing rooflights
61 Wentworth Park London N3 1YH · premises record
Proposed Lawful Development Certificate
Approved
2023-03-14
Single storey rear extension. Roof extension involving hip to gable, rear dormer and 3no. front facing rooflights
61 Wentworth Park London N3 1YH · premises record
Proposed Lawful Development Certificate
Refused
2023-02-07
Conversion of existing property into 4no self contained flats. Single storey side and rear extension. Alteration and extensions to roof to include rear dormer window and 2no front facing rooflights. Associated cycle and refuse storage.
43 Wentworth Park London N3 1YH · premises record
Full Application
Refused
2021-07-20
Part single part two storey rear extension. Roof extension involving hip to gable, 5no side gable windows and 2no front facing rooflights. Replacement of garage door with window.
43 Wentworth Park London N3 1YH · premises record
Applicant Mrs Carolyn and Mr Paul Collins · Agent Brill + Owen Architects · Officer Helen McGuinness
Proposed Lawful Development Certificate
Refused
2020-11-03
Single storey rear extension. Conversion of property into 2No. self-contained flats.
49 Wentworth Park London N3 1YH · premises record
—
Approved
2006-11-09
Submission of details of condition 6 (Obscure Glazing) 7 (Cycle Parking and Storage) 8 (Amenity Space) 9 (Enclosures- Refuse) 10 (Emissions-Carbon Dioxide) 11 (Sound Insulation Certs) pursuant to planning appeal APP/N5090/W/22/3295798 dated 31/01/2023 planning ref 21/4025/FUL
43 Wentworth Park London N3 1YH · premises record
Pending Consideration
2026-01-05
More
Conditions
Variation of condition 1 (Approved Plans) of appeal decision reference APP/N5090/W/22/3295798 dated 31/01/23 (planning ref. 21/4025/FUL) for 'Conversion of existing property into 4no self contained flats. Single storey side and rear extension. Alteration and extensions to roof to include rear dormer window and 2no front facing rooflights. Associated cycle and refuse storage.' Variation to include: Addition of a first floor window to side elevation facing No. 41; Alterations to second floor layout; Removal of pergolas
43 Wentworth Park London N3 1YH · premises record
Approved
2025-10-13
More
Vary/Remove condition/Minor Mtl Amnd
Conversion of the existing dwelling into 4no self contained flats including single storey side and rear extension. Roof extension including rear dormer window and 2no front facing rooflights. Associated cycle and refuse/recycling storage. (Retrospective Application)
43 Wentworth Park London N3 1YH · premises record
Withdrawn
2024-09-16
More
Retention/Continued Use
Show all 10 rows
Variation of condition 2 (Plan Numbers) of appeal decision APP/N5090/W/22/3295798 dated 30/01/23 (planning reference 21/4025/FUL) for 'Conversion of existing property into 4no self contained flats. Single storey side and rear extension. Alteration and extensions to roof to include rear dormer window and 2no front facing rooflights. Associated cycle and refuse storage.' Amendments include changes to the single-storey side and rear extension roof, addition of two patios and 1 pergola structure to the rear, alterations to rear dormer window, internal alterations to flats layout
43 Wentworth Park London N3 1YH · premises record
Withdrawn
2024-07-16
More
Vary/Remove condition/Minor Mtl Amnd
Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights
61 Wentworth Park London N3 1YH · premises record
Approved
2023-05-09
More
Proposed Lawful Development Certificate
Roof extension involving hip to gable, rear dormer and 3no. front facing rooflights
61 Wentworth Park London N3 1YH · premises record
Approved
2023-03-14
More
Proposed Lawful Development Certificate
Single storey rear extension. Roof extension involving hip to gable, rear dormer and 3no. front facing rooflights
61 Wentworth Park London N3 1YH · premises record
Refused
2023-02-07
More
Proposed Lawful Development Certificate
Conversion of existing property into 4no self contained flats. Single storey side and rear extension. Alteration and extensions to roof to include rear dormer window and 2no front facing rooflights. Associated cycle and refuse storage.
43 Wentworth Park London N3 1YH · premises record
Refused
2021-07-20
More
Full Application
Part single part two storey rear extension. Roof extension involving hip to gable, 5no side gable windows and 2no front facing rooflights. Replacement of garage door with window.
43 Wentworth Park London N3 1YH · premises record
Applicant Mrs Carolyn and Mr Paul Collins · Agent Brill + Owen Architects · Officer Helen McGuinness
Refused
2020-11-03
More
Proposed Lawful Development Certificate
Single storey rear extension. Conversion of property into 2No. self-contained flats.
49 Wentworth Park London N3 1YH · premises record
Approved
2006-11-09
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 17 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 17 of 17 premises. Some normally permitted changes may require planning permission.
Archaeological Priority Area
The name Finchley originates from the Anglo-Saxon and is defined as Finch’s clearing. However, Finchley is first mentioned in the 13th century. It is suggested that Church End was the earliest settlement in Finchley and was probably in use from · reference 77939 · covers 15 of 17 premises. Groundworks may require archaeological assessment or investigation.
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 17 of 17 premises. Some normally permitted changes may require planning permission.
Archaeological Priority Area
The name Finchley originates from the Anglo-Saxon and is defined as Finch’s clearing. However, Finchley is first mentioned in the 13th century. It is suggested that Church End was the earliest settlement in Finchley and was probably in use from · reference 77939 · covers 15 of 17 premises. Groundworks may require archaeological assessment or investigation.
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 11 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 4 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 3 applications
Agent on 2 applications
Agent on 2 applications
Agent on 1 application
Applicant on 4 applications
Applicant on 2 applications
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 3 applications
Agent on 2 applications
Agent on 2 applications
Agent on 1 application
Development
What could it become?
Planning precedent11 applications and 11 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy13 EPC records; ratings C: 5, D: 7, E: 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.