Postcode record · Hillingdon
HA4 6HH.
HA4 6HH has 21 known premises and 16 planning records — 12 approved of 16 decided (75%). 13 EPC records.
Postcode HA4 6HH · boundary not held, centred on the postcodeApprovedRefusedOther16 exact16 on the map — every match
At a glance · this postcodeHillingdon profile →
21
Premises
known addresses (UPRNs)
16
Applications
16 decided
75%
Approval rate
12 approved · 4 refused
13
EPC records
ratings C 2 · D 5 · E 5 · F 1
16
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?
HA4 6HH has 21 known premises and 16 planning records — 12 approved of 16 decided (75%). 13 EPC records.
Premises (18 of 21 shown)
Name
Details
UPRN 100021461815
UPRN 100021461817
UPRN 100021461819
UPRN 100021461821
UPRN 100021461822
UPRN 100021461823
UPRN 100021461828
UPRN 100021461830
UPRN 100021461832
UPRN 100021461834
UPRN 100021461815
UPRN 100021461817
UPRN 100021461819
Show all 10 rows
UPRN 100021461821
UPRN 100021461822
UPRN 100021461823
UPRN 100021461828
UPRN 100021461830
UPRN 100021461832
UPRN 100021461834
Planning
What happened?
16 planning applications across the postcode; 12 approved of 16 decided (75%). Latest 16 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Conversion of roof space to habitable use to include a rear dormer (Application for a Certificate of Lawful Development for a Proposed Development)
124 HERLWYN AVENUE RUISLIP · premises record
Agent miss Merve Gulener · Officer Katherine Mills
Planning Application
Approved
2025-05-22
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.00 metres, for which the maximum height would be 3.00 metres, and for which the height of the eaves would be 3.00 metres
124 HERLWYN AVENUE RUISLIP · premises record
Agent Miss Merve Gulener · Officer Emilie Bateman
Planning Application
Approved
2025-03-28
Erection of a single storey rear extension following demolition of existing conservatory
140 HERLWYN AVENUE RUISLIP · premises record
Agent Mr Kishan Ganatra · Officer Niamh McMenamin
Planning Application
Approved
2023-10-10
Conversion of roof space to habitable use to include a rear dormer with 3 front roof lights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
140 HERLWYN AVENUE RUISLIP · premises record
Agent Mr Kishan Ganatra · Officer Agatha Dutton
Planning Application
Approved
2023-10-10
Retention of two existing single storey rear extensions to dwellinghouse with alterations to reduce the height of the rear infill extension (Retrospective)
152 HERLWYN AVENUE RUISLIP HA4 6HH · premises record
Agent Mr David Mansoor Mercham House · Officer Hoda Sadri
Planning Application
Approved
2019-11-01
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights, and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development).
118 HERLWYN AVENUE RUISLIP Middlesex · premises record
Agent Mr Gary Pottle Pottle & Co. Ltd. Suite A · Officer Hoda Sadri
Planning Application
Approved
2019-04-18
Single storey rear extension
118 HERLWYN AVENUE RUISLIP Middlesex · premises record
Agent Mr Gary Pottle Pottle & Co. Ltd. Suite A · Officer Hoda Sadri
Planning Application
Approved
2019-04-18
Single storey rear extension with alterations to rear and side elevation.
138 HERLWYN AVENUE RUISLIP MIDDLESEX HA4 6HH · premises record
Agent Mr Jonathan Tucker Nett Assets Limited The Studio · Officer Diane Verona
Planning Application
Approved
2019-04-08
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 4 metres, and for which the height of the eaves would be 2.3 metres.
152 HERLWYN AVENUE RUISLIP HA4 6HH · premises record
Agent Mr D Black Plans Express · Officer Hoda Sadri
Planning Application
Refused
2018-11-29
Conversion of roof space to habitable use to include a rear dormer, 3 front roof lights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
152 HERLWYN AVENUE RUISLIP HA4 6HH · premises record
Agent Plans Express · Officer Hoda Sadri
Planning Application
Approved
2018-10-03
Conversion of roof space to habitable use to include a rear dormer (Application for a Certificate of Lawful Development for a Proposed Development)
124 HERLWYN AVENUE RUISLIP · premises record
Agent miss Merve Gulener · Officer Katherine Mills
Approved
2025-05-22
More
Planning Application
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4.00 metres, for which the maximum height would be 3.00 metres, and for which the height of the eaves would be 3.00 metres
124 HERLWYN AVENUE RUISLIP · premises record
Agent Miss Merve Gulener · Officer Emilie Bateman
Approved
2025-03-28
More
Planning Application
Erection of a single storey rear extension following demolition of existing conservatory
140 HERLWYN AVENUE RUISLIP · premises record
Agent Mr Kishan Ganatra · Officer Niamh McMenamin
Approved
2023-10-10
More
Planning Application
Show all 10 rows
Conversion of roof space to habitable use to include a rear dormer with 3 front roof lights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
140 HERLWYN AVENUE RUISLIP · premises record
Agent Mr Kishan Ganatra · Officer Agatha Dutton
Approved
2023-10-10
More
Planning Application
Retention of two existing single storey rear extensions to dwellinghouse with alterations to reduce the height of the rear infill extension (Retrospective)
152 HERLWYN AVENUE RUISLIP HA4 6HH · premises record
Agent Mr David Mansoor Mercham House · Officer Hoda Sadri
Approved
2019-11-01
More
Planning Application
Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights, and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development).
118 HERLWYN AVENUE RUISLIP Middlesex · premises record
Agent Mr Gary Pottle Pottle & Co. Ltd. Suite A · Officer Hoda Sadri
Approved
2019-04-18
More
Planning Application
Single storey rear extension
118 HERLWYN AVENUE RUISLIP Middlesex · premises record
Agent Mr Gary Pottle Pottle & Co. Ltd. Suite A · Officer Hoda Sadri
Approved
2019-04-18
More
Planning Application
Single storey rear extension with alterations to rear and side elevation.
138 HERLWYN AVENUE RUISLIP MIDDLESEX HA4 6HH · premises record
Agent Mr Jonathan Tucker Nett Assets Limited The Studio · Officer Diane Verona
Approved
2019-04-08
More
Planning Application
Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 4 metres, and for which the height of the eaves would be 2.3 metres.
152 HERLWYN AVENUE RUISLIP HA4 6HH · premises record
Agent Mr D Black Plans Express · Officer Hoda Sadri
Refused
2018-11-29
More
Planning Application
Conversion of roof space to habitable use to include a rear dormer, 3 front roof lights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
152 HERLWYN AVENUE RUISLIP HA4 6HH · premises record
Agent Plans Express · Officer Hoda Sadri
Approved
2018-10-03
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 21 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Residential extensions · reference A8177 · covers 21 of 21 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Residential extensions · reference A8177 · covers 21 of 21 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 16 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
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
Agent on 1 application
Agent on 1 application
Agent on 2 applications
Agent on 2 applications
Agent on 2 applications
Show all 10 rows
Agent on 2 applications
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Agent on 1 application
Development
What could it become?
Planning precedent16 applications and 16 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy13 EPC records; ratings C: 2, D: 5, E: 5, F: 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.
7 intent signals recorded in this postcode
Price decline · Repeat sale · EPC F/G · Long hold
Subscribe to see the signals →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.