Postcode record · Harrow
HA1 3JW.
HA1 3JW has 12 known premises and 6 planning records — 3 approved of 6 decided (50%). 6 EPC records.
Postcode HA1 3JW · boundary not held, centred on the postcodeApprovedRefusedOther22 on the map — every match
At a glance · this postcodeHarrow profile →
12
Premises
known addresses (UPRNs)
6
Applications
6 decided
50%
Approval rate
3 approved · 3 refused
72 days
Median decision time
average 80 days · 6 dated decisions
6
EPC records
ratings D 5 · E 1
22
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 3JW has 12 known premises and 6 planning records — 3 approved of 6 decided (50%). 6 EPC records.
Premises
Name
Details
UPRN 10010597840
UPRN 10010598357
UPRN 100021278440
UPRN 100021278441
UPRN 100021278442
UPRN 100021278444
UPRN 100021278445
UPRN 100021278446
UPRN 100021278455
UPRN 100021278456
UPRN 10010597840
UPRN 10010598357
UPRN 100021278440
Show all 10 rows
UPRN 100021278441
UPRN 100021278442
UPRN 100021278444
UPRN 100021278445
UPRN 100021278446
UPRN 100021278455
UPRN 100021278456
Planning
What happened?
6 planning applications across the postcode; 3 approved of 6 decided (50%). Latest 6 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Replacement windows
1, MOUNT LODGE Mount Park Avenue, Harrow On The Hill, Harrow, HA1 3JW · premises record
Officer Katie Parkins1
Full Planning Application
Refused
2019-09-30
Change of use from flats (Use class C3) to residential institution (Use class C2) (retrospective)
1, MOUNT LODGE Mount Park Avenue, Harrow On The Hill, Harrow, HA1 3JW · premises record
Officer Katie Parkins1
Full Planning Application
Refused
2019-06-20
Ash (courtyard, rear of property): Outgrown location. Fell to ground level and grind out stump
1, MOUNT LODGE Mount Park Avenue, Harrow On The Hill, Harrow, HA1 3JW · premises record
Officer Rebecca Farrar
Trees in a Conservation Area
Approved
2016-01-20
SINGLE STOREY SIDE/REAR EXTENSION
2, MOUNT LODGE Mount Park Avenue, Harrow On The Hill, Harrow, HA1 3JW · premises record
Officer SW2 Ms S Weeks
Full Planning Application
Approved
2005-11-14
SINGLE STOREY SIDE TO FRONT EXTENSION
1, MOUNT LODGE Mount Park Avenue, Harrow On The Hill, Harrow, HA1 3JW · premises record
Officer KN Mr K Naylor
Full Planning Application
Approved
2002-03-01
DETACHED GARAGE
1, MOUNT LODGE Mount Park Avenue, Harrow On The Hill, Harrow, HA1 3JW · premises record
Officer PI Mr P Iliffe
Full Planning Application
Refused
1999-02-22
Replacement windows
1, MOUNT LODGE Mount Park Avenue, Harrow On The Hill, Harrow, HA1 3JW · premises record
Officer Katie Parkins1
Refused
2019-09-30
More
Full Planning Application
Change of use from flats (Use class C3) to residential institution (Use class C2) (retrospective)
1, MOUNT LODGE Mount Park Avenue, Harrow On The Hill, Harrow, HA1 3JW · premises record
Officer Katie Parkins1
Refused
2019-06-20
More
Full Planning Application
Ash (courtyard, rear of property): Outgrown location. Fell to ground level and grind out stump
1, MOUNT LODGE Mount Park Avenue, Harrow On The Hill, Harrow, HA1 3JW · premises record
Officer Rebecca Farrar
Approved
2016-01-20
More
Trees in a Conservation Area
Show all 6 rows
SINGLE STOREY SIDE/REAR EXTENSION
2, MOUNT LODGE Mount Park Avenue, Harrow On The Hill, Harrow, HA1 3JW · premises record
Officer SW2 Ms S Weeks
Approved
2005-11-14
More
Full Planning Application
SINGLE STOREY SIDE TO FRONT EXTENSION
1, MOUNT LODGE Mount Park Avenue, Harrow On The Hill, Harrow, HA1 3JW · premises record
Officer KN Mr K Naylor
Approved
2002-03-01
More
Full Planning Application
DETACHED GARAGE
1, MOUNT LODGE Mount Park Avenue, Harrow On The Hill, Harrow, HA1 3JW · premises record
Officer PI Mr P Iliffe
Refused
1999-02-22
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?
Every mapped designation touching a premises in this postcode, with how many of its 12 premises each one covers.
Designation
Coverage
Conservation Area
Mount Park Estate Conservation Area Harrow on the · reference COA00000976 · covers 9 of 12 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Conservation Area
Sudbury Hill Conservation Area Harrow on the Hill · reference COA00000973 · covers 3 of 12 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Conservation Area
Mount Park Estate Conservation Area Harrow on the · reference COA00000976 · covers 9 of 12 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Conservation Area
Sudbury Hill Conservation Area Harrow on the Hill · reference COA00000973 · covers 3 of 12 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
People
Who is involved?
Named on the latest 6 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
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 2 applications
Case officer on 1 application
Case officer on 1 application
Show all 5 rows
Case officer on 1 application
Case officer on 1 application
Development
What could it become?
Planning precedent6 applications and 22 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy6 EPC records; ratings D: 5, 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.