Planning Atlas
AtlasPostcodeHA14XH
Dev
Session
Tier
Postcode record · Harrow

HA1 4XH.

HA1 4XH has 15 known premises and 14 planning records — 7 approved of 11 decided (63.6%). 12 EPC records.

Postcode unitHarrowOS boundary
HarrowHA1 4XH
Postcode HA1 4XH · boundary not held, centred on the postcodeApprovedRefusedOther14 on the map — every match
At a glance · this postcodeHarrow profile →
15
Premises
known addresses (UPRNs)
14
Applications
11 decided
63.6%
Approval rate
7 approved · 4 refused
50 days
Median decision time
average 52 days · 13 dated decisions
12
EPC records
ratings C 1 · D 7 · E 4
14
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 4XH has 15 known premises and 14 planning records — 7 approved of 11 decided (63.6%). 12 EPC records.

Premises

Planning

What happened?

14 planning applications across the postcode; 7 approved of 11 decided (63.6%). Latest 14 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.
53 Harley Crescent, Harrow, HA1 4XH · premises record
Certificate of Lawful Development Proposed
Approved
2025-05-01
Single storey rear extension
53 Harley Crescent, Harrow, HA1 4XH · premises record
Householder
Approved
2025-01-07
Single storey rear extension: 6.00 metres deep, 2.76 metres maximum height and 2.76 metres high to the eaves
53 Harley Crescent, Harrow, HA1 4XH · premises record
Prior Notification - Larger Home Extension
Not required
2024-11-20
Single storey rear extension: 6.00 metres deep, 2.76 metres maximum height and 2.76 metres high to the eaves
53 Harley Crescent, Harrow, HA1 4XH · premises record
Prior Notification - Larger Home Extension
Not required
2024-11-20
Erection of a part single, part two storey rear extension following part demolition
53 Harley Crescent, Harrow, HA1 4XH · premises record
Householder
Approved
2024-10-09
Single storey rear extension: 6.00 metres deep, 2.76 metres maximum height and 2.76 metres high to the eaves
53 Harley Crescent, Harrow, HA1 4XH · premises record
Prior Notification - Larger Home Extension
Refused
2024-10-09
Conversion of garage into study with alterations to front elevation
61A Harley Crescent, Harrow, HA1 4XH · premises record
Full Planning Application
Approved
2021-06-08
Single storey rear extension: 4.00 metres deep, 3.00 metres maximum height and 2.85 metres high to the eaves.
57 Harley Crescent, Harrow, HA1 4XH · premises record
Prior Notification - Larger Home Extension
Withdrawn
2020-11-16
Two storey side to rear extension; single storey side extension and single storey rear extension; front porch; external alterations
35 Harley Crescent, Harrow, HA1 4XH · premises record
Householder
Approved
2016-07-22
Single and two storey side to rear extension; single storey side extension and single storey rear extension; front porch; external alterations
35 Harley Crescent, Harrow, HA1 4XH · premises record
Householder
Refused
2016-04-20
Certificate of Lawful Proposed Development: Alterations to roof to create a hip to gable roof extension, rear dormer and two rooflights to front roofslope.
53 Harley Crescent, Harrow, HA1 4XH · premises record
Approved
2025-05-01
More
Certificate of Lawful Development Proposed
Single storey rear extension
53 Harley Crescent, Harrow, HA1 4XH · premises record
Approved
2025-01-07
More
Householder
Single storey rear extension: 6.00 metres deep, 2.76 metres maximum height and 2.76 metres high to the eaves
53 Harley Crescent, Harrow, HA1 4XH · premises record
Not required
2024-11-20
More
Prior Notification - Larger Home Extension
Show all 10 rows
Single storey rear extension: 6.00 metres deep, 2.76 metres maximum height and 2.76 metres high to the eaves
53 Harley Crescent, Harrow, HA1 4XH · premises record
Not required
2024-11-20
More
Prior Notification - Larger Home Extension
Erection of a part single, part two storey rear extension following part demolition
53 Harley Crescent, Harrow, HA1 4XH · premises record
Approved
2024-10-09
More
Householder
Single storey rear extension: 6.00 metres deep, 2.76 metres maximum height and 2.76 metres high to the eaves
53 Harley Crescent, Harrow, HA1 4XH · premises record
Refused
2024-10-09
More
Prior Notification - Larger Home Extension
Conversion of garage into study with alterations to front elevation
61A Harley Crescent, Harrow, HA1 4XH · premises record
Approved
2021-06-08
More
Full Planning Application
Single storey rear extension: 4.00 metres deep, 3.00 metres maximum height and 2.85 metres high to the eaves.
57 Harley Crescent, Harrow, HA1 4XH · premises record
Withdrawn
2020-11-16
More
Prior Notification - Larger Home Extension
Two storey side to rear extension; single storey side extension and single storey rear extension; front porch; external alterations
35 Harley Crescent, Harrow, HA1 4XH · premises record
Approved
2016-07-22
More
Householder
Single and two storey side to rear extension; single storey side extension and single storey rear extension; front porch; external alterations
35 Harley Crescent, Harrow, HA1 4XH · premises record
Refused
2016-04-20
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).

Urban Footpath 69 From 33 Harley Crescent To Marlborough Hill Between 113 And Primary School0 mHarley Crescent0 mWalton Drive40 mHarrow View44 mHide Road46 m
People

Who is involved?

Named on the latest 14 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 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 9 rows
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 1 application
Development

What could it become?

Planning precedent14 applications and 14 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy12 EPC records; ratings C: 1, D: 7, E: 4.
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.

5 intent signals recorded in this postcode
Portfolio seller · Charge registered · Lapsed consent · 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.
HA1 4XH, Harrow: planning and property history | Planning Atlas