Postcode record · Barnet
N3 3SS.
N3 3SS has 43 known premises and 58 planning records — 40 approved of 56 decided (71.4%). 31 EPC records.
Postcode N3 3SS · boundary not held, centred on the postcodeApprovedRefusedOther58 exact1 approximate59 on the map — every match
At a glance · this postcodeBarnet profile →
43
Premises
known addresses (UPRNs)
58
Applications
56 decided
71.4%
Approval rate
40 approved · 6 refused
31
EPC records
ratings C 1 · D 15 · E 11 · F 3 · G 1
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 3SS has 43 known premises and 58 planning records — 40 approved of 56 decided (71.4%). 31 EPC records.
Premises (18 of 43 shown)
Name
Details
UPRN 200127498
UPRN 200127502
UPRN 200127519
UPRN 200127520
UPRN 200127522
UPRN 200127524
UPRN 200127526
UPRN 200127528
UPRN 200127530
UPRN 200127532
UPRN 200127498
UPRN 200127502
UPRN 200127519
Show all 10 rows
UPRN 200127520
UPRN 200127522
UPRN 200127524
UPRN 200127526
UPRN 200127528
UPRN 200127530
UPRN 200127532
Planning
What happened?
58 planning applications across the postcode; 40 approved of 56 decided (71.4%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Partial demolition of the rear facade at ground, first and roof levels. Construction of a part single, part two storey rear extension with rooflights and green roofs. New lowered rear patio with associated steps to garden. Roof extension including hip to gable, rear dormer window and 1no. side gable window. Replacement of existing windows with new timber framed and aluminium double glazed windows
14 Windsor Road London N3 3SS · premises record
Householder Application
Approved
2025-10-07
Conversion of 2no. self-contained flats into single family dwelling
14 Windsor Road London N3 3SS · premises record
Proposed Lawful Development Certificate
Approved
2025-08-08
Erection of a garden room with decking area following removal of the existing decking
24 Windsor Road London N3 3SS · premises record
Applicant Michael & Victoria Coulton & Laine Hall · Agent Rooms Outdoor Contracts Ltd · Officer Ben Thompson
Householder Application
Approved
2024-08-20
Conversion of existing property into 4no. self-contained flats including; Part single, part two storey side and rear extensions. Alterations and extensions to roof including 1no. side dormer window, 1no rear dormer window, 1no rear rooflight and 1no front rooflight. Single storey outbuilding to rear. Associated amenity space, refuse storage, cycle store and off-street parking [Amended Plans]
2 Windsor Road London N3 3SS · premises record
Full Application
Refused
2023-04-05
Part single, part two storey rear extension and single storey side extension with green roof following demolition of the existing rear extension and garage
22 Windsor Road London N3 3SS · premises record
Householder Application
Approved
2023-03-14
Roof extension involving rear dormer window and 3no front facing rooflights
22 Windsor Road London N3 3SS · premises record
Proposed Lawful Development Certificate
Approved
2023-03-14
Part single, part two storey rear extension and single storey side extension with green roof, following demolition of the existing rear extension and garage. (Amended description and plans)
22 Windsor Road London N3 3SS · premises record
Householder Application
Approved
2022-11-08
Two single storey rear extensions with a maximum depth of 6m, maximum height of 3.2m and eaves height of 3.0m. The two single storey rear extensions will be separated by a gap of 1.17m.
22 Windsor Road London N3 3SS · premises record
Prior Notification (Householder)
Withdrawn
2022-09-27
Single storey side extension
30 Windsor Road London N3 3SS · premises record
Householder Application
Approved
2021-05-24
Roof extension involving rear dormer window with juliette balcony and 1no side and 3no front facing rooflights
14A Windsor Road London N3 3SS · premises record
Full Application
Approved
2021-02-10
Partial demolition of the rear facade at ground, first and roof levels. Construction of a part single, part two storey rear extension with rooflights and green roofs. New lowered rear patio with associated steps to garden. Roof extension including hip to gable, rear dormer window and 1no. side gable window. Replacement of existing windows with new timber framed and aluminium double glazed windows
14 Windsor Road London N3 3SS · premises record
Approved
2025-10-07
More
Householder Application
Conversion of 2no. self-contained flats into single family dwelling
14 Windsor Road London N3 3SS · premises record
Approved
2025-08-08
More
Proposed Lawful Development Certificate
Erection of a garden room with decking area following removal of the existing decking
24 Windsor Road London N3 3SS · premises record
Applicant Michael & Victoria Coulton & Laine Hall · Agent Rooms Outdoor Contracts Ltd · Officer Ben Thompson
Approved
2024-08-20
More
Householder Application
Show all 10 rows
Conversion of existing property into 4no. self-contained flats including; Part single, part two storey side and rear extensions. Alterations and extensions to roof including 1no. side dormer window, 1no rear dormer window, 1no rear rooflight and 1no front rooflight. Single storey outbuilding to rear. Associated amenity space, refuse storage, cycle store and off-street parking [Amended Plans]
2 Windsor Road London N3 3SS · premises record
Refused
2023-04-05
More
Full Application
Part single, part two storey rear extension and single storey side extension with green roof following demolition of the existing rear extension and garage
22 Windsor Road London N3 3SS · premises record
Approved
2023-03-14
More
Householder Application
Roof extension involving rear dormer window and 3no front facing rooflights
22 Windsor Road London N3 3SS · premises record
Approved
2023-03-14
More
Proposed Lawful Development Certificate
Part single, part two storey rear extension and single storey side extension with green roof, following demolition of the existing rear extension and garage. (Amended description and plans)
22 Windsor Road London N3 3SS · premises record
Approved
2022-11-08
More
Householder Application
Two single storey rear extensions with a maximum depth of 6m, maximum height of 3.2m and eaves height of 3.0m. The two single storey rear extensions will be separated by a gap of 1.17m.
22 Windsor Road London N3 3SS · premises record
Withdrawn
2022-09-27
More
Prior Notification (Householder)
Single storey side extension
30 Windsor Road London N3 3SS · premises record
Approved
2021-05-24
More
Householder Application
Roof extension involving rear dormer window with juliette balcony and 1no side and 3no front facing rooflights
14A Windsor Road London N3 3SS · premises record
Approved
2021-02-10
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 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 precedent58 applications and 59 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy31 EPC records; ratings C: 1, D: 15, E: 11, F: 3, G: 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
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.
10 intent signals recorded in this postcode
Ageing director · Portfolio seller · Beatable refusal · EPC F/G · Repeat sale · 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.