Postcode record · Barnet
NW4 2PY.
NW4 2PY has 20 known premises and 31 planning records — 23 approved of 31 decided (74.2%). 8 EPC records.
Postcode NW4 2PY · boundary not held, centred on the postcodeApprovedRefusedOther31 exact31 on the map — every match
At a glance · this postcodeBarnet profile →
20
Premises
known addresses (UPRNs)
31
Applications
31 decided
74.2%
Approval rate
23 approved · 6 refused
8
EPC records
ratings D 4 · E 4
31
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 2PY has 20 known premises and 31 planning records — 23 approved of 31 decided (74.2%). 8 EPC records.
Premises (18 of 20 shown)
Name
Details
UPRN 200080138
UPRN 200080139
UPRN 200080141
UPRN 200080143
UPRN 200080145
UPRN 200080147
UPRN 200080149
UPRN 200080151
UPRN 200080153
UPRN 200080155
UPRN 200080138
UPRN 200080139
UPRN 200080141
Show all 10 rows
UPRN 200080143
UPRN 200080145
UPRN 200080147
UPRN 200080149
UPRN 200080151
UPRN 200080153
UPRN 200080155
Planning
What happened?
31 planning applications across the postcode; 23 approved of 31 decided (74.2%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Part single, part two-storey rear extension and single-storey front and side wraparound extension following the demolition of existing garage (amended description)
3 Mayfield Gardens London NW4 2PY · premises record
Householder Application
Approved
2025-07-07
Single storey side/rear extension and first floor rear following demolition of the existing garage
3 Mayfield Gardens London NW4 2PY · premises record
Householder Application
Approved
2024-12-23
Erection of a part single part two storey side and rear extension. New front porch and two storey front bay extension. Roof extension including 2no. side and 1 no. rear dormer windows and 3no. front and 2no. side facing rooflights. Installation of 2no. air conditioning units to rear and side elevation (AMENDED DESCRIPTION)
9 Mayfield Gardens London NW4 2PY · premises record
Officer Radhika Bedi
Householder Application
Approved
2023-10-31
Roof extension involving side and rear dormers
7 Mayfield Gardens London NW4 2PY · premises record
Officer Basya Markovits
Proposed Lawful Development Certificate
Approved
2023-07-03
Single storey front extension. Part single, part two storey rear extension following demolition of the existing rear garden shed [Amended Description].
27 Mayfield Gardens London NW4 2PY · premises record
Applicant C/O UPP Architects + Town Planners · Agent UPP Architects and Town Planners · Officer Daniel Wieder
Householder Application
Approved
2022-02-25
Single storey front, rear and side extension. Changes to fenestration
21 Mayfield Gardens London NW4 2PY · premises record
Officer Natasha Campbell
Householder Application
Approved
2022-02-09
Roof extension involving side and rear dormer window with juliette balcony and 2no front facing rooflights
17 Mayfield Gardens London NW4 2PY · premises record
Officer Madara Tukisa
Proposed Lawful Development Certificate
Approved
2021-11-02
Variation of Condition No. 2 (Approved Plans) of planning appeal APP/N5090/D/20/3262051 Ref 20/1037/HSE, dated 09/02/2021, for `part single part two storey side and rear extension. New front porch, double front bay extension. Alterations to roof including 2 side dormer windows, rear dormer window and front and side facing rooflights. Installation of air conditioning units ` Variation to include minor alteration to the ground floor side extension and the enlargement of the side and rear dormer windows
9 Mayfield Gardens London NW4 2PY · premises record
—
Approved
2021-04-12
Erection of a part single, part two storey rear extension, ground floor side extension and new front porch. Alterations and extensions to the roof including the insertion of roof lights and side and rear dormer windows to facilitate a loft conversion. Installation of air conditioning units to the rear.
9 Mayfield Gardens London NW4 2PY · premises record
Officer Amy Lee
Householder Application
Approved
2020-12-02
Part single part two storey side and rear extension. New front porch, double front bay extension. Alterations to roof including 2 side dormer windows, rear dormer window and front and side facing rooflights. Installation of air conditioning units (AMENDED DESCRIPTION)
9 Mayfield Gardens London NW4 2PY · premises record
Householder Application
Refused
2020-02-25
Part single, part two-storey rear extension and single-storey front and side wraparound extension following the demolition of existing garage (amended description)
3 Mayfield Gardens London NW4 2PY · premises record
Approved
2025-07-07
More
Householder Application
Single storey side/rear extension and first floor rear following demolition of the existing garage
3 Mayfield Gardens London NW4 2PY · premises record
Approved
2024-12-23
More
Householder Application
Erection of a part single part two storey side and rear extension. New front porch and two storey front bay extension. Roof extension including 2no. side and 1 no. rear dormer windows and 3no. front and 2no. side facing rooflights. Installation of 2no. air conditioning units to rear and side elevation (AMENDED DESCRIPTION)
9 Mayfield Gardens London NW4 2PY · premises record
Officer Radhika Bedi
Approved
2023-10-31
More
Householder Application
Show all 10 rows
Roof extension involving side and rear dormers
7 Mayfield Gardens London NW4 2PY · premises record
Officer Basya Markovits
Approved
2023-07-03
More
Proposed Lawful Development Certificate
Single storey front extension. Part single, part two storey rear extension following demolition of the existing rear garden shed [Amended Description].
27 Mayfield Gardens London NW4 2PY · premises record
Applicant C/O UPP Architects + Town Planners · Agent UPP Architects and Town Planners · Officer Daniel Wieder
Approved
2022-02-25
More
Householder Application
Single storey front, rear and side extension. Changes to fenestration
21 Mayfield Gardens London NW4 2PY · premises record
Officer Natasha Campbell
Approved
2022-02-09
More
Householder Application
Roof extension involving side and rear dormer window with juliette balcony and 2no front facing rooflights
17 Mayfield Gardens London NW4 2PY · premises record
Officer Madara Tukisa
Approved
2021-11-02
More
Proposed Lawful Development Certificate
Variation of Condition No. 2 (Approved Plans) of planning appeal APP/N5090/D/20/3262051 Ref 20/1037/HSE, dated 09/02/2021, for `part single part two storey side and rear extension. New front porch, double front bay extension. Alterations to roof including 2 side dormer windows, rear dormer window and front and side facing rooflights. Installation of air conditioning units ` Variation to include minor alteration to the ground floor side extension and the enlargement of the side and rear dormer windows
9 Mayfield Gardens London NW4 2PY · premises record
Approved
2021-04-12
More
—
Erection of a part single, part two storey rear extension, ground floor side extension and new front porch. Alterations and extensions to the roof including the insertion of roof lights and side and rear dormer windows to facilitate a loft conversion. Installation of air conditioning units to the rear.
9 Mayfield Gardens London NW4 2PY · premises record
Officer Amy Lee
Approved
2020-12-02
More
Householder Application
Part single part two storey side and rear extension. New front porch, double front bay extension. Alterations to roof including 2 side dormer windows, rear dormer window and front and side facing rooflights. Installation of air conditioning units (AMENDED DESCRIPTION)
9 Mayfield Gardens London NW4 2PY · premises record
Refused
2020-02-25
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 20 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 20 of 20 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 20 of 20 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 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 2 applications
Agent on 2 applications
Agent on 1 application
Agent on 1 application
Case officer on 8 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Agent on 2 applications
Agent on 2 applications
Agent on 1 application
Agent on 1 application
Case officer on 8 applications
Development
What could it become?
Planning precedent31 applications and 31 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy8 EPC records; ratings D: 4, 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.
No intent signal is currently recorded in this postcode.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.