Postcode record · Hillingdon
UB3 3HJ.
UB3 3HJ has 15 known premises and 23 planning records — 14 approved of 20 decided (70%). 8 EPC records.
Postcode UB3 3HJ · boundary not held, centred on the postcodeApprovedRefusedOther23 exact23 on the map — every match
At a glance · this postcodeHillingdon profile →
15
Premises
known addresses (UPRNs)
23
Applications
20 decided
70%
Approval rate
14 approved · 6 refused
8
EPC records
ratings C 1 · D 6 · E 1
23
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?
UB3 3HJ has 15 known premises and 23 planning records — 14 approved of 20 decided (70%). 8 EPC records.
Premises
Name
Details
UPRN 10093737832
UPRN 100021420470
UPRN 100021420471
UPRN 100021420472
UPRN 100021420473
UPRN 100021420474
UPRN 100021420475
UPRN 100021420476
UPRN 100021420477
UPRN 100021420478
UPRN 10093737832
UPRN 100021420470
UPRN 100021420471
Show all 10 rows
UPRN 100021420472
UPRN 100021420473
UPRN 100021420474
UPRN 100021420475
UPRN 100021420476
UPRN 100021420477
UPRN 100021420478
Planning
What happened?
23 planning applications across the postcode; 14 approved of 20 decided (70%). Latest 23 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Erection of outbuilding to rear garden
274 COLDHARBOUR LANE HAYES MIDDLESEX UB3 3HJ · premises record
Agent Dalraj Bancil · Officer Rebekah McCullough
Planning Application
Approved
2023-02-20
Use of outbuilding as a two bedroom flat (Application for a Certificate of Lawful Development for an Existing Use)
298 COLDHARBOUR LANE HAYES · premises record
Planning Application
Refused
2019-08-27
Use of outbuilding as a two bedroom self contained flat (Application for a Certificate of Lawful Development for an Existing Development)
298 COLDHARBOUR LANE HAYES · premises record
Planning Application
Refused
2019-06-07
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 3.6 metres, for which the maximum height would be 2.95 metres, and for which the height of the eaves would be 2.95 metres
282 COLDHARBOUR LANE HAYES · premises record
Agent Mr J Singh Plans · Officer Nicola Taplin
Planning Application
Approved
2018-10-25
Single storey rear extension (Application for a Certificate of Lawful Development for a Proposed Development)
282 COLDHARBOUR LANE HAYES · premises record
Agent Mr J SINGH · Officer Nicola Taplin
Planning Application
Approved
2018-10-25
Conversion of roofspace to habitable use to include a rear dormer, 2 front rooflights and conversion of roof from hip to gable end with gable end window (Application for a Certificate of Lawful Development for an Existing Development)
282 COLDHARBOUR LANE HAYES · premises record
Agent Mr J SINGH · Officer Nicola Taplin
Planning Application
Approved
2018-10-24
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 3.6 metres, for which the maximum height would be 2.95 metres, and for which the height of the eaves would be 2.95 metres
282 COLDHARBOUR LANE HAYES · premises record
Agent Mr J Singh Plans · Officer Nicola Taplin
Planning Application
Approved
2018-10-24
Part single, part two storey rear and two storey side extension
290 COLDHARBOUR LANE HAYES · premises record
Planning Application
Approved
2013-10-09
Conversion of roof space to habitable use to include a rear dormer, 2 front rooflights and conversion of roof from hip to gable end with a new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)
274 COLDHARBOUR LANE HAYES MIDDLESEX UB3 3HJ · premises record
Agent Mr Kishan Ganatra · Officer Nicola Taplin
Planning Application
Approved
2013-08-21
CONVERSION OF ROOFSPACE TO HABITABLE ACCOMMODATION WITH INSTALLATION OF SIDE DORMER WINDOW (APPLICATION FOR A CERTIFICATE OF LAWFULNESS FOR A PROPOSED USE OR DEVELOPMENT)
284 COLDHARBOUR LANE HAYES · premises record
Agent Plans · Officer Sonia Bowen
Planning Application
Other
2006-07-04
Erection of outbuilding to rear garden
274 COLDHARBOUR LANE HAYES MIDDLESEX UB3 3HJ · premises record
Agent Dalraj Bancil · Officer Rebekah McCullough
Approved
2023-02-20
More
Planning Application
Use of outbuilding as a two bedroom flat (Application for a Certificate of Lawful Development for an Existing Use)
298 COLDHARBOUR LANE HAYES · premises record
Refused
2019-08-27
More
Planning Application
Use of outbuilding as a two bedroom self contained flat (Application for a Certificate of Lawful Development for an Existing Development)
298 COLDHARBOUR LANE HAYES · premises record
Refused
2019-06-07
More
Planning Application
Show all 10 rows
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 3.6 metres, for which the maximum height would be 2.95 metres, and for which the height of the eaves would be 2.95 metres
282 COLDHARBOUR LANE HAYES · premises record
Agent Mr J Singh Plans · Officer Nicola Taplin
Approved
2018-10-25
More
Planning Application
Single storey rear extension (Application for a Certificate of Lawful Development for a Proposed Development)
282 COLDHARBOUR LANE HAYES · premises record
Agent Mr J SINGH · Officer Nicola Taplin
Approved
2018-10-25
More
Planning Application
Conversion of roofspace to habitable use to include a rear dormer, 2 front rooflights and conversion of roof from hip to gable end with gable end window (Application for a Certificate of Lawful Development for an Existing Development)
282 COLDHARBOUR LANE HAYES · premises record
Agent Mr J SINGH · Officer Nicola Taplin
Approved
2018-10-24
More
Planning Application
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 3.6 metres, for which the maximum height would be 2.95 metres, and for which the height of the eaves would be 2.95 metres
282 COLDHARBOUR LANE HAYES · premises record
Agent Mr J Singh Plans · Officer Nicola Taplin
Approved
2018-10-24
More
Planning Application
Part single, part two storey rear and two storey side extension
290 COLDHARBOUR LANE HAYES · premises record
Approved
2013-10-09
More
Planning Application
Conversion of roof space to habitable use to include a rear dormer, 2 front rooflights and conversion of roof from hip to gable end with a new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)
274 COLDHARBOUR LANE HAYES MIDDLESEX UB3 3HJ · premises record
Agent Mr Kishan Ganatra · Officer Nicola Taplin
Approved
2013-08-21
More
Planning Application
CONVERSION OF ROOFSPACE TO HABITABLE ACCOMMODATION WITH INSTALLATION OF SIDE DORMER WINDOW (APPLICATION FOR A CERTIFICATE OF LAWFULNESS FOR A PROPOSED USE OR DEVELOPMENT)
284 COLDHARBOUR LANE HAYES · premises record
Agent Plans · Officer Sonia Bowen
Other
2006-07-04
More
Planning Application
Building control
Building-control records are not yet collected for Hillingdon — 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 15 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Residential extensions · reference A8177 · covers 15 of 15 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Residential extensions · reference A8177 · covers 15 of 15 premises. Some normally permitted changes may require planning permission.
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 23 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Agent on 3 applications
Agent on 2 applications
Agent on 2 applications
Agent on 2 applications
Agent on 2 applications
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Case officer on 5 applications
Agent on 3 applications
Agent on 2 applications
Agent on 2 applications
Show all 10 rows
Agent on 2 applications
Agent on 2 applications
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Case officer on 5 applications
Development
What could it become?
Planning precedent23 applications and 23 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy8 EPC records; ratings C: 1, D: 6, 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
The Developer PlanOwnership, 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.