Postcode record · Harrow
HA3 8AY.
HA3 8AY has 52 known premises and 42 planning records — 23 approved of 35 decided (65.7%). 27 EPC records.
Postcode HA3 8AY · boundary not held, centred on the postcodeApprovedRefusedOther42 exact42 on the map — every match
At a glance · this postcodeHarrow profile →
52
Premises
known addresses (UPRNs)
42
Applications
35 decided
65.7%
Approval rate
23 approved · 12 refused
27
EPC records
ratings C 10 · D 14 · E 1 · F 2
42
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 8AY has 52 known premises and 42 planning records — 23 approved of 35 decided (65.7%). 27 EPC records.
Premises (18 of 52 shown)
Name
Details
UPRN 10002293322
UPRN 10002294678
UPRN 10010597963
UPRN 10010597976
UPRN 10025181638
UPRN 10070263355
UPRN 10070263356
UPRN 10070266221
UPRN 10070266222
UPRN 10091096368
UPRN 10002293322
UPRN 10002294678
UPRN 10010597963
Show all 10 rows
UPRN 10010597976
UPRN 10025181638
UPRN 10070263355
UPRN 10070263356
UPRN 10070266221
UPRN 10070266222
UPRN 10091096368
Planning
What happened?
42 planning applications across the postcode; 23 approved of 35 decided (65.7%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey side to rear extension, First floor rear extension, Extension to patio at rear, External alterations (Demolition of rear extension)
54 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Householder
Approved
2025-06-30
Single storey side to rear extension, First floor rear infill extension, External alterations
54 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Householder
Refused
2025-03-20
Certificate of Lawful Development (Proposed): Single storey rear extension, partial demolition of existing rear extension, internal alterations
54 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Certificate of Lawful Development Proposed
Refused
2024-10-29
Single storey rear extension: 6.00 metres deep, 3.90 metres maximum height and 2.00 metres high to the eaves
54 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Prior Notification - Larger Home Extension
Refused
2024-10-29
Single storey side to rear extension
34 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Householder
Approved
2024-08-21
Certificate of Lawful Proposed Development: Alterations to roof to form rear dormer
54 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Certificate of Lawful Development Proposed
Approved
2024-08-06
Single storey rear extension: 6.00 metres deep, 3.22 metres maximum height and 2.69 metres high to the eaves
54 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Prior Notification - Larger Home Extension
Refused
2024-08-06
Certificate of Lawful Development (Proposed): Rear dormer with Juliet balcony; one rooflight in front roof slope
34 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Certificate of Lawful Development Proposed
Approved
2024-06-05
Single storey rear extension: 6.00 metres deep, 3.56 metres maximum height and 3.00 metres high to the eaves
34 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Prior Notification - Larger Home Extension
Not required
2024-06-05
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations and extension to roof to form end gable; rear dormer; two rooflights in front roofslope; window in end gable
6 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Certificate of Lawful Development Existing
Approved
2022-12-02
Single storey side to rear extension, First floor rear extension, Extension to patio at rear, External alterations (Demolition of rear extension)
54 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Approved
2025-06-30
More
Householder
Single storey side to rear extension, First floor rear infill extension, External alterations
54 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Refused
2025-03-20
More
Householder
Certificate of Lawful Development (Proposed): Single storey rear extension, partial demolition of existing rear extension, internal alterations
54 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Refused
2024-10-29
More
Certificate of Lawful Development Proposed
Show all 10 rows
Single storey rear extension: 6.00 metres deep, 3.90 metres maximum height and 2.00 metres high to the eaves
54 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Refused
2024-10-29
More
Prior Notification - Larger Home Extension
Single storey side to rear extension
34 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Approved
2024-08-21
More
Householder
Certificate of Lawful Proposed Development: Alterations to roof to form rear dormer
54 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Approved
2024-08-06
More
Certificate of Lawful Development Proposed
Single storey rear extension: 6.00 metres deep, 3.22 metres maximum height and 2.69 metres high to the eaves
54 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Refused
2024-08-06
More
Prior Notification - Larger Home Extension
Certificate of Lawful Development (Proposed): Rear dormer with Juliet balcony; one rooflight in front roof slope
34 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Approved
2024-06-05
More
Certificate of Lawful Development Proposed
Single storey rear extension: 6.00 metres deep, 3.56 metres maximum height and 3.00 metres high to the eaves
34 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Not required
2024-06-05
More
Prior Notification - Larger Home Extension
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations and extension to roof to form end gable; rear dormer; two rooflights in front roofslope; window in end gable
6 Carlton Avenue, Kenton, Harrow, HA3 8AY · premises record
Approved
2022-12-02
More
Certificate of Lawful Development Existing
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 29 From 56 Carlton Avenue To Infront Of 44 Mayfield Avenue1 mUrban Footpath 28 From End Of Francis Road Between 2a And Welfare Centre To 47 Carlton Avenue6 mMayfield Avenue51 mKenton Road52 mKentonian Close55 mBecmead Avenue56 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 6 applications
Applicant on 3 applications
Applicant on 3 applications
Applicant on 2 applications
Applicant on 1 application
Agent on 4 applications
Agent on 4 applications
Agent on 3 applications
Agent on 3 applications
Agent on 1 application
Applicant on 6 applications
Applicant on 3 applications
Applicant on 3 applications
Show all 10 rows
Applicant on 2 applications
Applicant on 1 application
Agent on 4 applications
Agent on 4 applications
Agent on 3 applications
Agent on 3 applications
Agent on 1 application
Development
What could it become?
Planning precedent42 applications and 42 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy27 EPC records; ratings C: 10, D: 14, E: 1, F: 2.
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.
13 intent signals recorded in this postcode
Price decline · EPC F/G · Long hold · HMO licensed · Ageing director
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.