Postcode record · Harrow
HA3 5NX.
HA3 5NX has 15 known premises and 11 planning records — 8 approved of 9 decided (88.9%). 8 EPC records.
Postcode HA3 5NX · boundary not held, centred on the postcodeApprovedRefusedOther11 exact11 on the map — every match
At a glance · this postcodeHarrow profile →
15
Premises
known addresses (UPRNs)
11
Applications
9 decided
88.9%
Approval rate
8 approved · 1 refused
8
EPC records
ratings C 3 · D 5
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?
HA3 5NX has 15 known premises and 11 planning records — 8 approved of 9 decided (88.9%). 8 EPC records.
Premises
Name
Details
UPRN 10002294407
UPRN 100021251765
UPRN 100021251767
UPRN 100021251769
UPRN 100021251771
UPRN 100021251773
UPRN 100021251775
UPRN 100021251777
UPRN 100021251779
UPRN 100021251781
UPRN 10002294407
UPRN 100021251765
UPRN 100021251767
Show all 10 rows
UPRN 100021251769
UPRN 100021251771
UPRN 100021251773
UPRN 100021251775
UPRN 100021251777
UPRN 100021251779
UPRN 100021251781
Planning
What happened?
11 planning applications across the postcode; 8 approved of 9 decided (88.9%). Latest 11 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.85 metres high to the eaves
45 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Prior Notification - Larger Home Extension
Pending Consideration
2026-05-20
Certificate of Lawful Development (Proposed): Alterations to roof; rear dormer; rooflight in front roof slope
29 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Certificate of Lawful Development Proposed
Approved
2026-01-26
Single storey rear extension; external alterations
31 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Householder
Approved
2024-03-25
Single Storey Rear Extension: 3.50 metres deep, 3.00 metres maximum height, 2.70 metres high to the eaves
43 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Prior Notification - Larger Home Extension
Not required
2023-10-06
Single Storey Rear Extension: 3.50 metres deep, 2.70 metres maximum height, 2.50 metres high to the eaves
43 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Prior Notification - Larger Home Extension
Refused
2023-07-20
First flor side extension; conversion of garage into habitable room; rear dormer; external alterations
33 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Householder
Approved
2021-02-24
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): DEMOLITION OF SINGLE STOREY REAR EXTENSION AND CONSTRUCTION OF SINGLE STOREY REAR EXTENSION
47 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Certificate of Lawful Development Existing
Approved
2011-03-08
DEMOLITION OF EXISTING REAR EXTENSION AND ERECTION OF SINGLE STOREY REAR EXTENSION TO TERRACED DWELLINGHOUSE
47 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Certificate of Lawful Development Existing
Approved
2007-05-22
SINGLE STOREY REAR EXTENSION AND CONVERSION TO TWO SELF-CONTAINED FLATS.
49A Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Full Planning Application
Approved
2003-08-26
CERTIFICATE OF LAWFUL PROPOSED DEVELOPMENT: SINGLE STOREY REAR EXTENSION
41 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Certificate of Lawful Development Existing
Approved
2002-05-21
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.85 metres high to the eaves
45 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Pending Consideration
2026-05-20
More
Prior Notification - Larger Home Extension
Certificate of Lawful Development (Proposed): Alterations to roof; rear dormer; rooflight in front roof slope
29 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Approved
2026-01-26
More
Certificate of Lawful Development Proposed
Single storey rear extension; external alterations
31 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Approved
2024-03-25
More
Householder
Show all 10 rows
Single Storey Rear Extension: 3.50 metres deep, 3.00 metres maximum height, 2.70 metres high to the eaves
43 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Not required
2023-10-06
More
Prior Notification - Larger Home Extension
Single Storey Rear Extension: 3.50 metres deep, 2.70 metres maximum height, 2.50 metres high to the eaves
43 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Refused
2023-07-20
More
Prior Notification - Larger Home Extension
First flor side extension; conversion of garage into habitable room; rear dormer; external alterations
33 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Approved
2021-02-24
More
Householder
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): DEMOLITION OF SINGLE STOREY REAR EXTENSION AND CONSTRUCTION OF SINGLE STOREY REAR EXTENSION
47 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Approved
2011-03-08
More
Certificate of Lawful Development Existing
DEMOLITION OF EXISTING REAR EXTENSION AND ERECTION OF SINGLE STOREY REAR EXTENSION TO TERRACED DWELLINGHOUSE
47 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Approved
2007-05-22
More
Certificate of Lawful Development Existing
SINGLE STOREY REAR EXTENSION AND CONVERSION TO TWO SELF-CONTAINED FLATS.
49A Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Approved
2003-08-26
More
Full Planning Application
CERTIFICATE OF LAWFUL PROPOSED DEVELOPMENT: SINGLE STOREY REAR EXTENSION
41 Athelstone Road, Harrow Weald, Harrow, HA3 5NX · premises record
Approved
2002-05-21
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).
Dalton Road0 mAthelstone Road0 mWhitefriars Avenue29 mWhitefriars Drive31 mMarthorne Crescent42 mUrban Footpath 149 From 48 Whitefriars Avenue To Infront Of 58 Whitefriars Avenue46 mToorack Road51 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
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 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
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 precedent11 applications and 11 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy8 EPC records; ratings C: 3, D: 5.
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.
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.