Postcode record · Harrow
HA3 8AX.
HA3 8AX has 44 known premises and 52 planning records — 25 approved of 41 decided (61%). 24 EPC records.
Postcode HA3 8AX · boundary not held, centred on the postcodeApprovedRefusedOther52 exact52 on the map — every match
At a glance · this postcodeHarrow profile →
44
Premises
known addresses (UPRNs)
52
Applications
41 decided
61%
Approval rate
25 approved · 16 refused
24
EPC records
ratings B 1 · C 8 · D 12 · E 3
52
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 8AX has 44 known premises and 52 planning records — 25 approved of 41 decided (61%). 24 EPC records.
Premises (18 of 44 shown)
Name
Details
UPRN 10002294648
UPRN 10070264290
UPRN 10070264481
UPRN 10070265124
UPRN 10070265582
UPRN 10070266125
UPRN 10070267632
UPRN 10070267633
UPRN 10091094554
UPRN 10091095632
UPRN 10002294648
UPRN 10070264290
UPRN 10070264481
Show all 10 rows
UPRN 10070265124
UPRN 10070265582
UPRN 10070266125
UPRN 10070267632
UPRN 10070267633
UPRN 10091094554
UPRN 10091095632
Planning
What happened?
52 planning applications across the postcode; 25 approved of 41 decided (61%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension: 6.00 metres deep, 3.19 metres maximum height and 3.00 metres high to the eaves
33 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Prior Notification - Larger Home Extension
Not required
2026-04-08
Conversion of dwelling into three flats (2 X 1 bed and 1 x 2 bed); single and two storey side to rear extensions; single storey rear extension; rear dormer; two rooflights in front roof slope; parking; amenity space; bin and cycle stores; landscaping; external alterations (Demolition of detached gar
33 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Full Planning Application
Withdrawn
2026-01-16
Conversion of dwelling into three flats (2 X 1 bed, 1 x 2 bed); single and two storey side and rear extensions; rear dormer; two rooflights in front roof slope; parking; private amenity space; bin / cycle storage; external alterations (demolition of detached garage and rear extension)
33 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Full Planning Application
Refused
2024-09-16
Conversion of dwelling into three flats (2 X 1 bed, 1 x 2 bed); single and two storey side and rear extensions; rear dormer; two rooflights in front roof slope; parking; private amenity space; bin / cycle storage; external alterations (demolition of detached garage and rear extension)
33 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Full Planning Application
Refused
2024-05-20
CERTIFICATE OF LAWFUL DEVELOPMENT (EXISTING): Use of dwellinghouse as two flats
15A Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Certificate of Lawful Development Existing
Approved
2023-11-29
Single storey side to rear extension (demolition of garage)
Ground Floor Flat, 29 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Full Planning Application
Approved
2023-09-20
Conversion of dwelling into three flats (1 X 1 bed, 1 x 2 bed and 1 x 3 bed); single and two storey side and rear extensions; rear dormer; external alterations;
33 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Full Planning Application
Refused
2023-09-15
Conversion of dwellinghouse to three flats (1 x 1 bed; 1 x 2 beds & 1 x studio); alterations and extension to roof to form end gable; rear dormer; three rooflights in front roofslope; external alterations; parking; separate amenity space; landscaping; bin / cycle storage (demolition of store)
17 Carlton Avenue, Kenton, Harrow · premises record
Full Planning Application
Approved
2023-02-23
Single storey side extension to ground floor flat; first floor side extension to first floor flat
29 Carlton Avenue, Kenton, Harrow · premises record
Full Planning Application
Refused
2022-09-14
Single storey side to rear extension (Demolition of detached outbuilding at rear)
35 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Householder
Approved
2022-07-05
Single storey rear extension: 6.00 metres deep, 3.19 metres maximum height and 3.00 metres high to the eaves
33 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Not required
2026-04-08
More
Prior Notification - Larger Home Extension
Conversion of dwelling into three flats (2 X 1 bed and 1 x 2 bed); single and two storey side to rear extensions; single storey rear extension; rear dormer; two rooflights in front roof slope; parking; amenity space; bin and cycle stores; landscaping; external alterations (Demolition of detached gar
33 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Withdrawn
2026-01-16
More
Full Planning Application
Conversion of dwelling into three flats (2 X 1 bed, 1 x 2 bed); single and two storey side and rear extensions; rear dormer; two rooflights in front roof slope; parking; private amenity space; bin / cycle storage; external alterations (demolition of detached garage and rear extension)
33 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Refused
2024-09-16
More
Full Planning Application
Show all 10 rows
Conversion of dwelling into three flats (2 X 1 bed, 1 x 2 bed); single and two storey side and rear extensions; rear dormer; two rooflights in front roof slope; parking; private amenity space; bin / cycle storage; external alterations (demolition of detached garage and rear extension)
33 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Refused
2024-05-20
More
Full Planning Application
CERTIFICATE OF LAWFUL DEVELOPMENT (EXISTING): Use of dwellinghouse as two flats
15A Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Approved
2023-11-29
More
Certificate of Lawful Development Existing
Single storey side to rear extension (demolition of garage)
Ground Floor Flat, 29 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Approved
2023-09-20
More
Full Planning Application
Conversion of dwelling into three flats (1 X 1 bed, 1 x 2 bed and 1 x 3 bed); single and two storey side and rear extensions; rear dormer; external alterations;
33 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Refused
2023-09-15
More
Full Planning Application
Conversion of dwellinghouse to three flats (1 x 1 bed; 1 x 2 beds & 1 x studio); alterations and extension to roof to form end gable; rear dormer; three rooflights in front roofslope; external alterations; parking; separate amenity space; landscaping; bin / cycle storage (demolition of store)
17 Carlton Avenue, Kenton, Harrow · premises record
Approved
2023-02-23
More
Full Planning Application
Single storey side extension to ground floor flat; first floor side extension to first floor flat
29 Carlton Avenue, Kenton, Harrow · premises record
Refused
2022-09-14
More
Full Planning Application
Single storey side to rear extension (Demolition of detached outbuilding at rear)
35 Carlton Avenue, Kenton, Harrow, HA3 8AX · premises record
Approved
2022-07-05
More
Householder
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).
Carlton Avenue0 mUrban Footpath 28 From End Of Francis Road Between 2a And Welfare Centre To 47 Carlton Avenue1 mUrban Footpath 29 From 56 Carlton Avenue To Infront Of 44 Mayfield Avenue6 mFrancis Road51 mManor Road53 mCrofts Road56 mHill Crescent59 m
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 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 4 applications
Applicant on 3 applications
Applicant on 2 applications
Applicant on 2 applications
Show all 10 rows
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 4 applications
Development
What could it become?
Planning precedent52 applications and 52 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy24 EPC records; ratings B: 1, C: 8, D: 12, E: 3.
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.
9 intent signals recorded in this postcode
Application withdrawn · Appeal dismissed · Lapsed consent · 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.