Postcode record · Hillingdon
UB4 8LZ.
UB4 8LZ has 39 known premises and 42 planning records — 32 approved of 40 decided (80%). 18 EPC records.
Postcode UB4 8LZ · boundary not held, centred on the postcodeApprovedRefusedOther42 on the map — every match
At a glance · this postcodeHillingdon profile →
39
Premises
known addresses (UPRNs)
42
Applications
40 decided
80%
Approval rate
32 approved · 8 refused
18
EPC records
ratings C 2 · D 11 · E 5
42
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?
UB4 8LZ has 39 known premises and 42 planning records — 32 approved of 40 decided (80%). 18 EPC records.
Premises (18 of 39 shown)
Name
Details
UPRN 100021414086
UPRN 100021414087
UPRN 100021414088
UPRN 100021414089
UPRN 100021414090
UPRN 100021414091
UPRN 100021414092
UPRN 100021414093
UPRN 100021414094
UPRN 100021414095
UPRN 100021414086
UPRN 100021414087
UPRN 100021414088
Show all 10 rows
UPRN 100021414089
UPRN 100021414090
UPRN 100021414091
UPRN 100021414092
UPRN 100021414093
UPRN 100021414094
UPRN 100021414095
Planning
What happened?
42 planning applications across the postcode; 32 approved of 40 decided (80%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
non-material amendment to planning permission ref. 78333/APP/2024/723, dated 05/06/2024 (Erection of a single storey detached building to the rear for use as a residential annexe) to add a Shower and WC
21 ADELPHI CRESCENT HAYES UB4 8LZ · premises record
Officer Analese Haynes
Planning Application
Approved
2026-01-28
Erection of outbuilding and veranda to rear garden (Retrospective Application)
24 ADELPHI CRESCENT HAYES · premises record
Officer Analese Haynes
Planning Application
Approved
2025-12-01
Non-material amendment to planning permission ref. 78333/APP/2024/723, dated 05-06-24 (Erection of a single storey detached building to the rear for use as a residential annexe) to increase the size and number of outbuilding windows
21 ADELPHI CRESCENT HAYES UB4 8LZ · premises record
Officer Analese Haynes
Planning Application
Approved
2025-11-26
Conversion of a single dwelling house into 2no. self contained Flats.
18 ADELPHI CRESCENT HAYES UB4 8LZ · premises record
Officer Rhian Thomas
Planning Application
Refused
2025-11-24
Alteration to rear extension to include a rear lantern and new side facing window at ground floor level.
48 ADELPHI CRESCENT HAYES · premises record
Officer Agatha Dutton
Planning Application
Approved
2025-01-13
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 with new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)
48 ADELPHI CRESCENT HAYES · premises record
Officer Sadmir Kabashi
Planning Application
Approved
2024-06-27
Alteration to rear extension to include a rear lantern and new side facing window at ground floor level. (Amended Description)
48 ADELPHI CRESCENT HAYES · premises record
Officer Daniel Ambrose
Planning Application
Approved
2024-04-26
Erection of a single storey detached building to the rear for use as a residential annexe
21 ADELPHI CRESCENT HAYES UB4 8LZ · premises record
Officer Daniel Ambrose
Planning Application
Approved
2024-03-20
Erection of a single storey extension to the rear
21 ADELPHI CRESCENT HAYES UB4 8LZ · premises record
Officer Benjamin Hicks
Planning Application
Approved
2023-10-18
Conversion of roof space to habitable use to include 2 front roof lights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
21 ADELPHI CRESCENT HAYES UB4 8LZ · premises record
Officer Samuel Patten
Planning Application
Approved
2023-10-05
non-material amendment to planning permission ref. 78333/APP/2024/723, dated 05/06/2024 (Erection of a single storey detached building to the rear for use as a residential annexe) to add a Shower and WC
21 ADELPHI CRESCENT HAYES UB4 8LZ · premises record
Officer Analese Haynes
Approved
2026-01-28
More
Planning Application
Erection of outbuilding and veranda to rear garden (Retrospective Application)
24 ADELPHI CRESCENT HAYES · premises record
Officer Analese Haynes
Approved
2025-12-01
More
Planning Application
Non-material amendment to planning permission ref. 78333/APP/2024/723, dated 05-06-24 (Erection of a single storey detached building to the rear for use as a residential annexe) to increase the size and number of outbuilding windows
21 ADELPHI CRESCENT HAYES UB4 8LZ · premises record
Officer Analese Haynes
Approved
2025-11-26
More
Planning Application
Show all 10 rows
Conversion of a single dwelling house into 2no. self contained Flats.
18 ADELPHI CRESCENT HAYES UB4 8LZ · premises record
Officer Rhian Thomas
Refused
2025-11-24
More
Planning Application
Alteration to rear extension to include a rear lantern and new side facing window at ground floor level.
48 ADELPHI CRESCENT HAYES · premises record
Officer Agatha Dutton
Approved
2025-01-13
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 with new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)
48 ADELPHI CRESCENT HAYES · premises record
Officer Sadmir Kabashi
Approved
2024-06-27
More
Planning Application
Alteration to rear extension to include a rear lantern and new side facing window at ground floor level. (Amended Description)
48 ADELPHI CRESCENT HAYES · premises record
Officer Daniel Ambrose
Approved
2024-04-26
More
Planning Application
Erection of a single storey detached building to the rear for use as a residential annexe
21 ADELPHI CRESCENT HAYES UB4 8LZ · premises record
Officer Daniel Ambrose
Approved
2024-03-20
More
Planning Application
Erection of a single storey extension to the rear
21 ADELPHI CRESCENT HAYES UB4 8LZ · premises record
Officer Benjamin Hicks
Approved
2023-10-18
More
Planning Application
Conversion of roof space to habitable use to include 2 front roof lights and conversion of roof from hip to gable end (Application for a Certificate of Lawful Development for a Proposed Development)
21 ADELPHI CRESCENT HAYES UB4 8LZ · premises record
Officer Samuel Patten
Approved
2023-10-05
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 39 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Residential extensions · reference A8177 · covers 39 of 39 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Residential extensions · reference A8177 · covers 39 of 39 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 30 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Case officer on 10 applications
Case officer on 3 applications
Case officer on 2 applications
Case officer on 2 applications
Case officer on 2 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 10 applications
Case officer on 3 applications
Case officer on 2 applications
Show all 10 rows
Case officer on 2 applications
Case officer on 2 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
Development
What could it become?
Planning precedent42 applications and 42 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy18 EPC records; ratings C: 2, D: 11, E: 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.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.