Postcode record · Barnet
NW4 3DX.
NW4 3DX has 14 known premises and 24 planning records — 15 approved of 23 decided (65.2%). 8 EPC records.
Postcode NW4 3DX · boundary not held, centred on the postcodeApprovedRefusedOther24 exact24 on the map — every match
At a glance · this postcodeBarnet profile →
14
Premises
known addresses (UPRNs)
24
Applications
23 decided
65.2%
Approval rate
15 approved · 5 refused
8
EPC records
ratings C 1 · D 3 · E 3 · G 1
24
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?
NW4 3DX has 14 known premises and 24 planning records — 15 approved of 23 decided (65.2%). 8 EPC records.
Premises
Name
Details
UPRN 200028566
UPRN 200028568
UPRN 200028570
UPRN 200028572
UPRN 200028574
UPRN 200028576
UPRN 200028578
UPRN 200028580
UPRN 200028582
UPRN 200028584
UPRN 200028566
UPRN 200028568
UPRN 200028570
Show all 10 rows
UPRN 200028572
UPRN 200028574
UPRN 200028576
UPRN 200028578
UPRN 200028580
UPRN 200028582
UPRN 200028584
Planning
What happened?
24 planning applications across the postcode; 15 approved of 23 decided (65.2%). Latest 24 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Erection of a rear outbuilding
36 Crespigny Road London NW4 3DX · premises record
Householder Application
Approved
2025-12-30
Single storey front extension
46 Crespigny Road London NW4 3DX · premises record
Householder Application
Withdrawn
2025-12-09
Alterations to existing single storey rear extension: new double door, lowering ridge line of roof and new flat roof with 3no. rooflights
48 Crespigny Road London NW4 3DX · premises record
Householder Application
Approved
2025-12-04
Part single, part two storey front, side and rear extensions following demolition of the existing garage. Roof extension involving side and rear dormer windows and 3no. side facing rooflights
36 Crespigny Road London NW4 3DX · premises record
Householder Application
Approved
2025-09-18
Single storey rear extension with a depth of 6.00 metres, a maximum height of 3.46 metres, and an eaves height of 2.82 metres.
36 Crespigny Road London NW4 3DX · premises record
Prior Notification (Householder)
Not required
2025-07-04
Roof extension involving hip to gable to both sides, 2no. rear dormer windows and 2no. front and 1no. rear facing rooflights
44 Crespigny Road London NW4 3DX · premises record
Proposed Lawful Development Certificate
Approved
2025-04-29
Single storey rear extension following demolition of existing rear extension. Conversion of the existing garage into habitable room, insertion of window to replace garage door. Replacement of front bay windows with two storey front extension. Single storey front extension with new front door. Changes to fenestration. (Amended Description)
44 Crespigny Road London NW4 3DX · premises record
Householder
Approved
2024-11-14
Single storey front extension incorporating new front porch. Part single, part two storey side and rear extension following demolition of existing garage. Roof extension including 1no. side and 1no. rear dormer windows. Single storey outbuilding to rear
38 Crespigny Road London NW4 3DX · premises record
Householder Application
Approved
2018-09-03
Part single, part two storey side and rear extensions. Demolition of existing garage. Roof extension involving rear and side dormer windows
38 Crespigny Road London NW4 3DX · premises record
Householder Application
Approved
2018-01-18
Part single, part two storey side and rear extensions. Single storey front bay window extension. Demolition of existing garage. Existing roof to be extended with a new rear and side dormer window to facilitate a loft conversion (Amended description)
38 Crespigny Road London NW4 3DX · premises record
Householder Application
Refused
2017-05-16
Erection of a rear outbuilding
36 Crespigny Road London NW4 3DX · premises record
Approved
2025-12-30
More
Householder Application
Single storey front extension
46 Crespigny Road London NW4 3DX · premises record
Withdrawn
2025-12-09
More
Householder Application
Alterations to existing single storey rear extension: new double door, lowering ridge line of roof and new flat roof with 3no. rooflights
48 Crespigny Road London NW4 3DX · premises record
Approved
2025-12-04
More
Householder Application
Show all 10 rows
Part single, part two storey front, side and rear extensions following demolition of the existing garage. Roof extension involving side and rear dormer windows and 3no. side facing rooflights
36 Crespigny Road London NW4 3DX · premises record
Approved
2025-09-18
More
Householder Application
Single storey rear extension with a depth of 6.00 metres, a maximum height of 3.46 metres, and an eaves height of 2.82 metres.
36 Crespigny Road London NW4 3DX · premises record
Not required
2025-07-04
More
Prior Notification (Householder)
Roof extension involving hip to gable to both sides, 2no. rear dormer windows and 2no. front and 1no. rear facing rooflights
44 Crespigny Road London NW4 3DX · premises record
Approved
2025-04-29
More
Proposed Lawful Development Certificate
Single storey rear extension following demolition of existing rear extension. Conversion of the existing garage into habitable room, insertion of window to replace garage door. Replacement of front bay windows with two storey front extension. Single storey front extension with new front door. Changes to fenestration. (Amended Description)
44 Crespigny Road London NW4 3DX · premises record
Approved
2024-11-14
More
Householder
Single storey front extension incorporating new front porch. Part single, part two storey side and rear extension following demolition of existing garage. Roof extension including 1no. side and 1no. rear dormer windows. Single storey outbuilding to rear
38 Crespigny Road London NW4 3DX · premises record
Approved
2018-09-03
More
Householder Application
Part single, part two storey side and rear extensions. Demolition of existing garage. Roof extension involving rear and side dormer windows
38 Crespigny Road London NW4 3DX · premises record
Approved
2018-01-18
More
Householder Application
Part single, part two storey side and rear extensions. Single storey front bay window extension. Demolition of existing garage. Existing roof to be extended with a new rear and side dormer window to facilitate a loft conversion (Amended description)
38 Crespigny Road London NW4 3DX · premises record
Refused
2017-05-16
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 14 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 14 of 14 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 14 of 14 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 24 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 3 applications
Applicant on 3 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 1 application
Applicant on 3 applications
Applicant on 3 applications
Applicant on 1 application
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 precedent24 applications and 24 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy8 EPC records; ratings C: 1, D: 3, E: 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.
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.