Postcode record · Harrow
HA1 4XD.
HA1 4XD has 17 known premises and 18 planning records — 14 approved of 16 decided (87.5%). 4 EPC records.
Postcode HA1 4XD · boundary not held, centred on the postcodeApprovedRefusedOther18 on the map — every match
At a glance · this postcodeHarrow profile →
17
Premises
known addresses (UPRNs)
18
Applications
16 decided
87.5%
Approval rate
14 approved · 2 refused
4
EPC records
ratings D 3 · E 1
18
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 4XD has 17 known premises and 18 planning records — 14 approved of 16 decided (87.5%). 4 EPC records.
Premises
Name
Details
UPRN 100021292786
UPRN 100021292788
UPRN 100021292790
UPRN 100021292792
UPRN 100021292794
UPRN 100021292796
UPRN 100021292798
UPRN 100021292800
UPRN 100021292802
UPRN 100021292804
UPRN 100021292786
UPRN 100021292788
UPRN 100021292790
Show all 10 rows
UPRN 100021292792
UPRN 100021292794
UPRN 100021292796
UPRN 100021292798
UPRN 100021292800
UPRN 100021292802
UPRN 100021292804
Planning
What happened?
18 planning applications across the postcode; 14 approved of 16 decided (87.5%). Latest 18 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension: 4.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves
23 Walton Drive, Harrow, HA1 4XD · premises record
Prior Notification - Larger Home Extension
Approved
2025-07-03
Single storey rear extension: 4.00 metres deep, 3.00 metres maximum height and 2.80 metres high to the eaves
23 Walton Drive, Harrow, HA1 4XD · premises record
Prior Notification - Larger Home Extension
Refused
2025-05-19
Single storey rear extension: 4.50 metres deep, 3.80 metres maximum height and 2.60 metres high to the eaves
23 Walton Drive, Harrow, HA1 4XD · premises record
Prior Notification - Larger Home Extension
Refused
2025-03-22
Single Storey Rear Extension: extending 4.6 metres beyond the original rear wall, 4 metres maximum height, 3 metres high to the eaves
33 Walton Drive, Harrow, HA1 4XD · premises record
Prior Notification - Larger Home Extension
Approved
2015-06-22
APPROVAL OF DETAILS PURSUANT TO CONDITION 4 (REVISED PLAND AND ELEVATIONS) OF P/0473/14 DATED 28/05/2014 FOR SINGLE AND TWO STOREY SIDE EXTENSION
51 Walton Drive, Harrow, HA1 4XD · premises record
Prior Approval (Miscellaneous Acts)
Approved
2014-06-25
Single Storey Rear Extension: 6 Metres deep, 3.65 Metres maximum height and 2.7 Metres high to the eaves
31 Walton Drive, Harrow, HA1 4XD · premises record
Prior Notification - Larger Home Extension
Approved
2014-03-06
SINGLE AND TWO STOREY SIDE EXTENSION (DEMOLITION OF WOODEN TEMPORARY STRUCTURE)
51 Walton Drive, Harrow, HA1 4XD · premises record
Applicant Mrs Zemaryalai Alia · Officer DB David Buckley
Householder
Approved
2014-01-30
SIngle Storey Rear Extension: 5.3 Metres deep from the original rear wall, 3.45 Metres maximum height and 2.85 Metres high to the eaves
51 Walton Drive, Harrow, HA1 4XD · premises record
Prior Notification - Larger Home Extension
Approved
2013-12-03
SIngle Storey Rear Extension: 6 Metres deep from the original rear wall, 3.45 Metres maximum height and 2.85 Metres high to the eaves
51 Walton Drive, Harrow, HA1 4XD · premises record
Prior Notification - Larger Home Extension
Withdrawn
2013-10-31
Single storey rear extension: 4.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves
23 Walton Drive, Harrow, HA1 4XD · premises record
Approved
2025-07-03
More
Prior Notification - Larger Home Extension
Single storey rear extension: 4.00 metres deep, 3.00 metres maximum height and 2.80 metres high to the eaves
23 Walton Drive, Harrow, HA1 4XD · premises record
Refused
2025-05-19
More
Prior Notification - Larger Home Extension
Single storey rear extension: 4.50 metres deep, 3.80 metres maximum height and 2.60 metres high to the eaves
23 Walton Drive, Harrow, HA1 4XD · premises record
Refused
2025-03-22
More
Prior Notification - Larger Home Extension
Show all 10 rows
Single Storey Rear Extension: extending 4.6 metres beyond the original rear wall, 4 metres maximum height, 3 metres high to the eaves
33 Walton Drive, Harrow, HA1 4XD · premises record
Approved
2015-06-22
More
Prior Notification - Larger Home Extension
APPROVAL OF DETAILS PURSUANT TO CONDITION 4 (REVISED PLAND AND ELEVATIONS) OF P/0473/14 DATED 28/05/2014 FOR SINGLE AND TWO STOREY SIDE EXTENSION
51 Walton Drive, Harrow, HA1 4XD · premises record
Approved
2014-06-25
More
Prior Approval (Miscellaneous Acts)
Single Storey Rear Extension: 6 Metres deep, 3.65 Metres maximum height and 2.7 Metres high to the eaves
31 Walton Drive, Harrow, HA1 4XD · premises record
Approved
2014-03-06
More
Prior Notification - Larger Home Extension
SINGLE AND TWO STOREY SIDE EXTENSION (DEMOLITION OF WOODEN TEMPORARY STRUCTURE)
51 Walton Drive, Harrow, HA1 4XD · premises record
Applicant Mrs Zemaryalai Alia · Officer DB David Buckley
Approved
2014-01-30
More
Householder
SIngle Storey Rear Extension: 5.3 Metres deep from the original rear wall, 3.45 Metres maximum height and 2.85 Metres high to the eaves
51 Walton Drive, Harrow, HA1 4XD · premises record
Approved
2013-12-03
More
Prior Notification - Larger Home Extension
SIngle Storey Rear Extension: 6 Metres deep from the original rear wall, 3.45 Metres maximum height and 2.85 Metres high to the eaves
51 Walton Drive, Harrow, HA1 4XD · premises record
Withdrawn
2013-10-31
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).
Walton Drive0 mUrban Footpath 69 From 33 Harley Crescent To Marlborough Hill Between 113 And Primary School0 mHarley Crescent42 mLongley Road45 mHarrow View45 m
People
Who is involved?
Named on the latest 18 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 4 applications
Applicant on 3 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 4 applications
Applicant on 3 applications
Applicant on 2 applications
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Development
What could it become?
Planning precedent18 applications and 18 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy4 EPC records; ratings D: 3, 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.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.