Postcode record · Harrow
HA3 5AZ.
HA3 5AZ has 43 known premises and 8 planning records — 4 approved of 5 decided (80%). 31 EPC records.
Postcode HA3 5AZ · boundary not held, centred on the postcodeApprovedRefusedOther8 exact8 on the map — every match
At a glance · this postcodeHarrow profile →
43
Premises
known addresses (UPRNs)
8
Applications
5 decided
80%
Approval rate
4 approved · 1 refused
31
EPC records
ratings C 19 · D 11 · E 1
8
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?
HA3 5AZ has 43 known premises and 8 planning records — 4 approved of 5 decided (80%). 31 EPC records.
Premises (18 of 43 shown)
Name
Details
UPRN 10000002084
UPRN 10025188977
UPRN 10070265770
UPRN 10070265772
UPRN 10070265774
UPRN 10070265776
UPRN 10095546564
UPRN 10095546565
UPRN 10097183145
UPRN 100021277468
UPRN 10000002084
UPRN 10025188977
UPRN 10070265770
Show all 10 rows
UPRN 10070265772
UPRN 10070265774
UPRN 10070265776
UPRN 10095546564
UPRN 10095546565
UPRN 10097183145
UPRN 100021277468
Planning
What happened?
8 planning applications across the postcode; 4 approved of 5 decided (80%). Latest 8 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Conversion Of Dwelling Into Two Flats (2 X 2 Bed); Single Amenity Space; Bin And Cycle Stores
143 Masons Avenue, Wealdstone, Harrow · premises record
Full Planning Application
Approved
2021-08-31
Single storey rear extension: 4.09 metres deep, 2.96 metres maximum height and 2.96 metres high to the eaves
143 Masons Avenue, Wealdstone, Harrow · premises record
Applicant Kaushik Das · Officer Safwan Ahmed
Prior Notification - Larger Home Extension
Not required
2021-07-09
Single storey rear extension: 6.00 metres deep, 2.96 metres maximum height and 2.96 metres high to the eaves
143 Masons Avenue, Wealdstone, Harrow · premises record
Applicant Kaushik Das · Officer Safwan Ahmed
Prior Notification - Larger Home Extension
Not required
2021-07-05
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Single storey rear extension.
143 Masons Avenue, Wealdstone, Harrow · premises record
Certificate of Lawful Development Existing
Approved
2021-07-02
Alterations to roof; side to rear wrap-a-round dormer; two rooflights in front roofslope
143 Masons Avenue, Wealdstone, Harrow · premises record
Certificate of Lawful Development Existing
Approved
2021-05-21
Single storey rear extension: 6.00 metres deep, 2.96 metres maximum height and 2.96 metres high to the eaves
143 Masons Avenue, Wealdstone, Harrow · premises record
Applicant Talaarez · Officer Safwan Ahmed
Prior Notification - Larger Home Extension
Withdrawn
2021-05-21
CONVERSION OF HOUSE INTO 2 SELF-CONTAINED FLATS (RESIDENT PERMIT RESTRICTED), VELUX WINDOWS TO FRONT AND REAR
141A Masons Avenue, Wealdstone, Harrow, HA3 5AZ · premises record
Full Planning Application
Approved
2005-01-26
SINGLE STOREY REAR EXTENSION; REAR STAIRCASE; FRONT DORMER; CONVERSION OF DWELLINGHOUSE TO 2 SELF CONTAINED FLATS
141A Masons Avenue, Wealdstone, Harrow, HA3 5AZ · premises record
Full Planning Application
Refused
2004-01-06
Conversion Of Dwelling Into Two Flats (2 X 2 Bed); Single Amenity Space; Bin And Cycle Stores
143 Masons Avenue, Wealdstone, Harrow · premises record
Approved
2021-08-31
More
Full Planning Application
Single storey rear extension: 4.09 metres deep, 2.96 metres maximum height and 2.96 metres high to the eaves
143 Masons Avenue, Wealdstone, Harrow · premises record
Applicant Kaushik Das · Officer Safwan Ahmed
Not required
2021-07-09
More
Prior Notification - Larger Home Extension
Single storey rear extension: 6.00 metres deep, 2.96 metres maximum height and 2.96 metres high to the eaves
143 Masons Avenue, Wealdstone, Harrow · premises record
Applicant Kaushik Das · Officer Safwan Ahmed
Not required
2021-07-05
More
Prior Notification - Larger Home Extension
Show all 8 rows
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Single storey rear extension.
143 Masons Avenue, Wealdstone, Harrow · premises record
Approved
2021-07-02
More
Certificate of Lawful Development Existing
Alterations to roof; side to rear wrap-a-round dormer; two rooflights in front roofslope
143 Masons Avenue, Wealdstone, Harrow · premises record
Approved
2021-05-21
More
Certificate of Lawful Development Existing
Single storey rear extension: 6.00 metres deep, 2.96 metres maximum height and 2.96 metres high to the eaves
143 Masons Avenue, Wealdstone, Harrow · premises record
Applicant Talaarez · Officer Safwan Ahmed
Withdrawn
2021-05-21
More
Prior Notification - Larger Home Extension
CONVERSION OF HOUSE INTO 2 SELF-CONTAINED FLATS (RESIDENT PERMIT RESTRICTED), VELUX WINDOWS TO FRONT AND REAR
141A Masons Avenue, Wealdstone, Harrow, HA3 5AZ · premises record
Approved
2005-01-26
More
Full Planning Application
SINGLE STOREY REAR EXTENSION; REAR STAIRCASE; FRONT DORMER; CONVERSION OF DWELLINGHOUSE TO 2 SELF CONTAINED FLATS
141A Masons Avenue, Wealdstone, Harrow, HA3 5AZ · premises record
Refused
2004-01-06
More
Full Planning Application
Building control
Building-control records are not yet collected for Harrow — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).
Place
What affects it?
No mapped designation intersects a premises point in this postcode in the current build. Open any premises above for its own designation record.
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 8 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 3 applications
Applicant on 1 application
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
Case officer on 5 applications
Applicant on 3 applications
Applicant on 1 application
Applicant on 1 application
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 2 applications
Agent on 2 applications
Agent on 1 application
Case officer on 5 applications
Development
What could it become?
Planning precedent8 applications and 8 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy31 EPC records; ratings C: 19, D: 11, 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
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.