Postcode record · Barnet
NW4 1AS.
NW4 1AS has 25 known premises and 44 planning records — 29 approved of 44 decided (65.9%). 14 EPC records.
Postcode NW4 1AS · boundary not held, centred on the postcodeApprovedRefusedOther44 exact10 approximate54 on the map — every match
At a glance · this postcodeBarnet profile →
25
Premises
known addresses (UPRNs)
44
Applications
44 decided
65.9%
Approval rate
29 approved · 11 refused
14
EPC records
ratings B 2 · C 1 · D 7 · E 4
54
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 1AS has 25 known premises and 44 planning records — 29 approved of 44 decided (65.9%). 14 EPC records.
Premises (18 of 25 shown)
Name
Details
UPRN 200034075
UPRN 200034077
UPRN 200034079
UPRN 200034081
UPRN 200034083
UPRN 200034085
UPRN 200034087
UPRN 200034089
UPRN 200034091
UPRN 200034093
UPRN 200034075
UPRN 200034077
UPRN 200034079
Show all 10 rows
UPRN 200034081
UPRN 200034083
UPRN 200034085
UPRN 200034087
UPRN 200034089
UPRN 200034091
UPRN 200034093
Planning
What happened?
44 planning applications across the postcode; 29 approved of 44 decided (65.9%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Porch extension, new front door. Part First floor rear bay extension. Fenestration changes to replace existing windows/doors at dwelling and outbuilding, new windows and door in flank wall of dwelling. Alterations to front amenity to include landscaping, increased height of boundary wall, 3 nos. access gates and bin enclosure. Alterations to rear amenity to include new planter. (Amended Description)
17 Downage London NW4 1AS · premises record
Householder Application
Approved
2024-05-10
Permission in Principle Application for 1no. dwelling
Rear Of 47 Downage London NW4 1AS · premises record
Permission in Principle
Refused
2024-04-03
Erection of a rear outbuilding following demolition of the existing garage
47 Downage London NW4 1AS · premises record
Proposed Lawful Development Certificate
Approved
2023-09-26
Erection of a rear outbuilding following demolition of the existing garage
47 Downage London NW4 1AS · premises record
Proposed Lawful Development Certificate
Refused
2023-05-10
Part single, part two storey side and rear extension
11 Downage London NW4 1AS · premises record
Householder Application
Approved
2020-10-27
Part single, part two storey side and rear extension. Alterations and extensions to roof including insertion of front, side and rear rooflights
11 Downage London NW4 1AS · premises record
Householder Application
Refused
2019-09-27
Single storey rear extension with a proposed depth of 8.00 metres from original rear wall, eaves height of 3.00 metres and maximum height of 3.00 metres.
11 Downage London NW4 1AS · premises record
Prior Notification (Householder)
Refused
2019-08-28
Single storey outbuilding to rear following demolition of existing garages
47 Downage London NW4 1AS · premises record
Proposed Lawful Development Certificate
Approved
2018-07-04
Alteration to the roof and front gable, rear roof, and the roof lights, reduction in size of the first-floor front elevation window and the entrance.
17 Downage London NW4 1AS · premises record
Applicant Mr Lousky
Householder Application
Approved
2017-07-07
Roof extension involving 2no rear dormer windows and 1no side dormer window, 2no rooflights to front elevation and 1no side rooflight. New doors to rear elevation. Extension and alteration to roof of existing garden room to rear.
27 Downage London NW4 1AS · premises record
Applicant Mr Matthew Simon · Agent ZED Architect
Householder Application
Approved
2017-06-12
Porch extension, new front door. Part First floor rear bay extension. Fenestration changes to replace existing windows/doors at dwelling and outbuilding, new windows and door in flank wall of dwelling. Alterations to front amenity to include landscaping, increased height of boundary wall, 3 nos. access gates and bin enclosure. Alterations to rear amenity to include new planter. (Amended Description)
17 Downage London NW4 1AS · premises record
Approved
2024-05-10
More
Householder Application
Permission in Principle Application for 1no. dwelling
Rear Of 47 Downage London NW4 1AS · premises record
Refused
2024-04-03
More
Permission in Principle
Erection of a rear outbuilding following demolition of the existing garage
47 Downage London NW4 1AS · premises record
Approved
2023-09-26
More
Proposed Lawful Development Certificate
Show all 10 rows
Erection of a rear outbuilding following demolition of the existing garage
47 Downage London NW4 1AS · premises record
Refused
2023-05-10
More
Proposed Lawful Development Certificate
Part single, part two storey side and rear extension
11 Downage London NW4 1AS · premises record
Approved
2020-10-27
More
Householder Application
Part single, part two storey side and rear extension. Alterations and extensions to roof including insertion of front, side and rear rooflights
11 Downage London NW4 1AS · premises record
Refused
2019-09-27
More
Householder Application
Single storey rear extension with a proposed depth of 8.00 metres from original rear wall, eaves height of 3.00 metres and maximum height of 3.00 metres.
11 Downage London NW4 1AS · premises record
Refused
2019-08-28
More
Prior Notification (Householder)
Single storey outbuilding to rear following demolition of existing garages
47 Downage London NW4 1AS · premises record
Approved
2018-07-04
More
Proposed Lawful Development Certificate
Alteration to the roof and front gable, rear roof, and the roof lights, reduction in size of the first-floor front elevation window and the entrance.
17 Downage London NW4 1AS · premises record
Applicant Mr Lousky
Approved
2017-07-07
More
Householder Application
Roof extension involving 2no rear dormer windows and 1no side dormer window, 2no rooflights to front elevation and 1no side rooflight. New doors to rear elevation. Extension and alteration to roof of existing garden room to rear.
27 Downage London NW4 1AS · premises record
Applicant Mr Matthew Simon · Agent ZED Architect
Approved
2017-06-12
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 25 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 25 of 25 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 25 of 25 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 precedent44 applications and 54 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy14 EPC records; ratings B: 2, C: 1, D: 7, E: 4.
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.
5 intent signals recorded in this postcode
Appeal dismissed · 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.