Planning Atlas
AtlasPostcodeHA14XB
Dev
Session
Tier
Postcode record · Harrow

HA1 4XB.

HA1 4XB has 10 known premises and 11 planning records — 8 approved of 10 decided (80%). 6 EPC records.

Postcode unitHarrowOS boundary
HarrowHA1 4XB
Postcode HA1 4XB · boundary not held, centred on the postcodeApprovedRefusedOther11 on the map — every match
At a glance · this postcodeHarrow profile →
10
Premises
known addresses (UPRNs)
11
Applications
10 decided
80%
Approval rate
8 approved · 2 refused
6
EPC records
ratings D 4 · E 1 · G 1
11
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 4XB has 10 known premises and 11 planning records — 8 approved of 10 decided (80%). 6 EPC records.

Premises

Planning

What happened?

11 planning applications across the postcode; 8 approved of 10 decided (80%). Latest 11 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
Certificate of Lawful Development (Proposed): Alterations to roof to form gable end, rear facing dormer, 2 No. Rooflights to front elevation
15 Walton Drive, Harrow, HA1 4XB · premises record
Certificate of Lawful Development Proposed
Approved
2024-10-09
Single storey rear extension: 6.00 metres deep, 2.88 metres maximum height and 2.88 metres high to the eaves
15 Walton Drive, Harrow, HA1 4XB · premises record
Prior Notification - Larger Home Extension
Not required
2024-07-24
Single storey rear extension; external alterations
15 Walton Drive, Harrow, HA1 4XB · premises record
Householder
Approved
2024-06-11
Single and two storey rear extension; external alterations
15 Walton Drive, Harrow, HA1 4XB · premises record
Householder
Approved
2024-06-11
Single storey rear extension: 6.00 metres deep, 2.88 metres maximum height and 2.88 metres high to the eaves
15 Walton Drive, Harrow, HA1 4XB · premises record
Prior Notification - Larger Home Extension
Refused
2024-06-11
CERTIFICATE OF LAWFUL PROPOSED DEVELOPMENT: SINGLE STOREY REAR EXTENSION
11 Walton Drive, Harrow, HA1 4XB · premises record
Certificate of Lawful Development Existing
Approved
2005-09-16
SINGLE AND TWO STOREY SIDE EXTENSIONS
3 Walton Drive, Harrow, HA1 4XB · premises record
Full Planning Application
Approved
2005-08-19
CERTIFICATE OF LAWFUL PROPOSED DEVELOPMENT: DEMOLISH REAR GARAGE AND ERECT SINGLE STOREY REAR EXTENSION
7 Walton Drive, Harrow, HA1 4XB · premises record
Certificate of Lawful Development Existing
Approved
2005-06-07
CERTIFICATE OF LAWFUL PROPOSED DEVELOPMENT: SINGLE STOREY REAR EXTENSION
13 Walton Drive, Harrow, HA1 4XB · premises record
Certificate of Lawful Development Existing
Approved
2004-01-22
TWO STOREY SIDE AND SINGLE STOREY FRONT EXTENSION
19 Walton Drive, Harrow, HA1 4XB · premises record
Full Planning Application
Approved
1999-07-13
Certificate of Lawful Development (Proposed): Alterations to roof to form gable end, rear facing dormer, 2 No. Rooflights to front elevation
15 Walton Drive, Harrow, HA1 4XB · premises record
Approved
2024-10-09
More
Certificate of Lawful Development Proposed
Single storey rear extension: 6.00 metres deep, 2.88 metres maximum height and 2.88 metres high to the eaves
15 Walton Drive, Harrow, HA1 4XB · premises record
Not required
2024-07-24
More
Prior Notification - Larger Home Extension
Single storey rear extension; external alterations
15 Walton Drive, Harrow, HA1 4XB · premises record
Approved
2024-06-11
More
Householder
Show all 10 rows
Single and two storey rear extension; external alterations
15 Walton Drive, Harrow, HA1 4XB · premises record
Approved
2024-06-11
More
Householder
Single storey rear extension: 6.00 metres deep, 2.88 metres maximum height and 2.88 metres high to the eaves
15 Walton Drive, Harrow, HA1 4XB · premises record
Refused
2024-06-11
More
Prior Notification - Larger Home Extension
CERTIFICATE OF LAWFUL PROPOSED DEVELOPMENT: SINGLE STOREY REAR EXTENSION
11 Walton Drive, Harrow, HA1 4XB · premises record
Approved
2005-09-16
More
Certificate of Lawful Development Existing
SINGLE AND TWO STOREY SIDE EXTENSIONS
3 Walton Drive, Harrow, HA1 4XB · premises record
Approved
2005-08-19
More
Full Planning Application
CERTIFICATE OF LAWFUL PROPOSED DEVELOPMENT: DEMOLISH REAR GARAGE AND ERECT SINGLE STOREY REAR EXTENSION
7 Walton Drive, Harrow, HA1 4XB · premises record
Approved
2005-06-07
More
Certificate of Lawful Development Existing
CERTIFICATE OF LAWFUL PROPOSED DEVELOPMENT: SINGLE STOREY REAR EXTENSION
13 Walton Drive, Harrow, HA1 4XB · premises record
Approved
2004-01-22
More
Certificate of Lawful Development Existing
TWO STOREY SIDE AND SINGLE STOREY FRONT EXTENSION
19 Walton Drive, Harrow, HA1 4XB · premises record
Approved
1999-07-13
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).

Walton Drive0 mUrban Footpath 69 From 33 Harley Crescent To Marlborough Hill Between 113 And Primary School0 mHarley Crescent37 mWalton Road38 m
People

Who is involved?

Named on the latest 11 applications in this postcode — the party who applied, not the owner or occupier.

Name
Details
Case officer on 5 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 5 applications
Case officer on 2 applications
Case officer on 1 application
Show all 6 rows
Case officer on 1 application
Case officer on 1 application
Case officer on 1 application
Development

What could it become?

Planning precedent11 applications and 11 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy6 EPC records; ratings D: 4, E: 1, G: 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 Pro

Ownership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.

7 intent signals recorded in this postcode
Charge registered · Portfolio seller · Repeat sale · EPC F/G · Long hold
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.
HA1 4XB, Harrow: planning and property history | Planning Atlas