Postcode record · Harrow
HA1 4XJ.
HA1 4XJ has 28 known premises and 24 planning records — 7 approved of 14 decided (50%). 18 EPC records.
Postcode HA1 4XJ · boundary not held, centred on the postcodeApprovedRefusedOther24 on the map — every match
At a glance · this postcodeHarrow profile →
28
Premises
known addresses (UPRNs)
24
Applications
14 decided
50%
Approval rate
7 approved · 7 refused
50 days
Median decision time
average 61 days · 20 dated decisions
18
EPC records
ratings C 5 · D 11 · E 2
24
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?
HA1 4XJ has 28 known premises and 24 planning records — 7 approved of 14 decided (50%). 18 EPC records.
Premises (18 of 28 shown)
Name
Details
UPRN 10095548217
UPRN 10095548218
UPRN 10095548219
UPRN 10095548220
UPRN 10095548221
UPRN 10095548222
UPRN 100021267004
UPRN 100021267006
UPRN 100021267008
UPRN 100021267010
UPRN 10095548217
UPRN 10095548218
UPRN 10095548219
Show all 10 rows
UPRN 10095548220
UPRN 10095548221
UPRN 10095548222
UPRN 100021267004
UPRN 100021267006
UPRN 100021267008
UPRN 100021267010
Planning
What happened?
24 planning applications across the postcode; 7 approved of 14 decided (50%). Latest 24 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Certificate of Lawful Proposed Development: Alterations to roof to create a hip to gable roof extension, rear dormer and two rooflights to front roofslope.
36 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer Lee Connor
Certificate of Lawful Development Proposed
Approved
2025-05-01
Single storey rear extension to No. 36 and first floor rear extension to both No.s 34 and 36
36 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer Lee Connor
Full Planning Application
Refused
2025-02-12
Single storey rear extension: 6.00 metres deep, 2.82 metres maximum height and 2.82 metres high to the eaves
36 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer Lee Connor
Prior Notification - Larger Home Extension
Not required
2024-11-27
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves
34 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer WILLHO Will Hossack
Prior Notification - Larger Home Extension
Not required
2021-11-12
Single and two storey rear extension; external alterations
32 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer Safwan Ahmed
Householder
Approved
2021-04-07
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.70 metres high to the eaves
32 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer Safwan Ahmed
Prior Notification - Larger Home Extension
Not required
2021-04-07
Single Storey Rear Extension: 6 metres deep, 3 metres maximum height, 3 metres high to the eaves
16 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer JP Jimill Patel
Prior Notification - Larger Home Extension
Refused
2019-03-20
Single Storey Rear Extension: 6 metres deep, 3 metres maximum height, 2.95 metres high to the eaves
40 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer WILLHO Will Hossack
Prior Notification - Larger Home Extension
Not required
2019-03-11
Single Storey Rear Extension: 6 metres deep, 3 metres maximum height, 3 metres high to the eaves
16 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer LPC Lap Pan Chong
Prior Notification - Larger Home Extension
Refused
2019-03-08
Single Storey Rear Extension extending 6 metres beyond the original rear wall, 3.3 metres maximum height, 3 metres high to the eaves
38 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer PE Peter Elia
Prior Notification - Larger Home Extension
Not required
2018-05-15
Certificate of Lawful Proposed Development: Alterations to roof to create a hip to gable roof extension, rear dormer and two rooflights to front roofslope.
36 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer Lee Connor
Approved
2025-05-01
More
Certificate of Lawful Development Proposed
Single storey rear extension to No. 36 and first floor rear extension to both No.s 34 and 36
36 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer Lee Connor
Refused
2025-02-12
More
Full Planning Application
Single storey rear extension: 6.00 metres deep, 2.82 metres maximum height and 2.82 metres high to the eaves
36 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer Lee Connor
Not required
2024-11-27
More
Prior Notification - Larger Home Extension
Show all 10 rows
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves
34 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer WILLHO Will Hossack
Not required
2021-11-12
More
Prior Notification - Larger Home Extension
Single and two storey rear extension; external alterations
32 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer Safwan Ahmed
Approved
2021-04-07
More
Householder
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.70 metres high to the eaves
32 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer Safwan Ahmed
Not required
2021-04-07
More
Prior Notification - Larger Home Extension
Single Storey Rear Extension: 6 metres deep, 3 metres maximum height, 3 metres high to the eaves
16 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer JP Jimill Patel
Refused
2019-03-20
More
Prior Notification - Larger Home Extension
Single Storey Rear Extension: 6 metres deep, 3 metres maximum height, 2.95 metres high to the eaves
40 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer WILLHO Will Hossack
Not required
2019-03-11
More
Prior Notification - Larger Home Extension
Single Storey Rear Extension: 6 metres deep, 3 metres maximum height, 3 metres high to the eaves
16 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer LPC Lap Pan Chong
Refused
2019-03-08
More
Prior Notification - Larger Home Extension
Single Storey Rear Extension extending 6 metres beyond the original rear wall, 3.3 metres maximum height, 3 metres high to the eaves
38 Harley Crescent, Harrow, HA1 4XJ · premises record
Officer PE Peter Elia
Not required
2018-05-15
More
Prior Notification - Larger Home Extension
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).
Harley Road0 mHarley Crescent0 mUrban Footpath 69 From 33 Harley Crescent To Marlborough Hill Between 113 And Primary School6 mHide Road46 mHarrow View46 m
People
Who is involved?
Named on the latest 24 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Case officer on 3 applications
Case officer on 3 applications
Case officer on 2 applications
Case officer on 2 applications
Case officer on 2 applications
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 3 applications
Case officer on 3 applications
Case officer on 2 applications
Show all 10 rows
Case officer on 2 applications
Case officer on 2 applications
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Development
What could it become?
Planning precedent24 applications and 24 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy18 EPC records; ratings C: 5, D: 11, E: 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.
9 intent signals recorded in this postcode
Charge registered · Portfolio seller · Long hold · HMO licensed
Subscribe to see the signals →Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.