Postcode record · Harrow
HA1 3RF.
HA1 3RF has 26 known premises and 39 planning records — 29 approved of 37 decided (78.4%). 11 EPC records.
Postcode HA1 3RF · boundary not held, centred on the postcodeApprovedRefusedOther39 on the map — every match
At a glance · this postcodeHarrow profile →
26
Premises
known addresses (UPRNs)
39
Applications
37 decided
78.4%
Approval rate
29 approved · 8 refused
56 days
Median decision time
average 75 days · 37 dated decisions
11
EPC records
ratings C 2 · D 9
39
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 3RF has 26 known premises and 39 planning records — 29 approved of 37 decided (78.4%). 11 EPC records.
Premises (18 of 26 shown)
Name
Details
UPRN 100021257082
UPRN 100021257084
UPRN 100021257086
UPRN 100021257088
UPRN 100021257090
UPRN 100021257092
UPRN 100021257094
UPRN 100021257096
UPRN 100021257098
UPRN 100021257082
UPRN 100021257084
Show all 10 rows
UPRN 100021257086
UPRN 100021257088
UPRN 100021257090
UPRN 100021257092
UPRN 100021257094
UPRN 100021257096
UPRN 100021257098
Planning
What happened?
39 planning applications across the postcode; 29 approved of 37 decided (78.4%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Certificate of Lawful Existing Development: Use of the dwelling as a HMO (C4) for 6 people
63 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Ian Opolot
Certificate of Lawful Development Existing
Pending Consideration
2026-04-20
Single and two storey side to rear extension; rear dormer; external alterations
63 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Ian Opolot
Householder
Approved
2025-12-05
Single and two storey side to rear extension; alterations to roof to form end gable and rear dormer; external alterations
63 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Kanchan Sharma
Householder
Refused
2025-10-20
Single and two storey side to rear extension; single storey rear extension; one rooflight in side roofslope (Demolition of attached garage)
63 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Kanchan Sharma
Householder
Approved
2025-09-29
Single storey rear extension: 5.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves
63 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Kanchan Sharma
Prior Notification - Larger Home Extension
Approved
2024-12-27
Single storey rear extension (Demolition of rear conservatory)
69 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Kanchan Sharma
Householder
Approved
2024-08-19
change of use of a residential dwelling (Use Class C3) to a residential care home for four children (Use Class C2)
67 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Deniss Nikandrovs
Full Planning Application
Approved
2024-06-07
Certificate of lawful development (proposed): Alterations to roof to form end gable and rear dormer; installation of two rooflights in front roofslope and window in gable end
69 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Ryan Gallagher
Certificate of Lawful Development Existing
Approved
2024-04-24
Certificate of lawful development (proposed): Alterations to roof to form end gable and rear dormer; installation of two rooflights in front roofslope and new window in gable end
69 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Ben Greene
Certificate of Lawful Development Existing
Refused
2024-02-09
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Use of dwelling house (Class C3) as HMO for up to six people (Class C4)
67 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Catriona Cooke
Certificate of Lawful Development Proposed
Approved
2023-12-15
Certificate of Lawful Existing Development: Use of the dwelling as a HMO (C4) for 6 people
63 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Ian Opolot
Pending Consideration
2026-04-20
More
Certificate of Lawful Development Existing
Single and two storey side to rear extension; rear dormer; external alterations
63 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Ian Opolot
Approved
2025-12-05
More
Householder
Single and two storey side to rear extension; alterations to roof to form end gable and rear dormer; external alterations
63 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Kanchan Sharma
Refused
2025-10-20
More
Householder
Show all 10 rows
Single and two storey side to rear extension; single storey rear extension; one rooflight in side roofslope (Demolition of attached garage)
63 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Kanchan Sharma
Approved
2025-09-29
More
Householder
Single storey rear extension: 5.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves
63 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Kanchan Sharma
Approved
2024-12-27
More
Prior Notification - Larger Home Extension
Single storey rear extension (Demolition of rear conservatory)
69 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Kanchan Sharma
Approved
2024-08-19
More
Householder
change of use of a residential dwelling (Use Class C3) to a residential care home for four children (Use Class C2)
67 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Deniss Nikandrovs
Approved
2024-06-07
More
Full Planning Application
Certificate of lawful development (proposed): Alterations to roof to form end gable and rear dormer; installation of two rooflights in front roofslope and window in gable end
69 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Ryan Gallagher
Approved
2024-04-24
More
Certificate of Lawful Development Existing
Certificate of lawful development (proposed): Alterations to roof to form end gable and rear dormer; installation of two rooflights in front roofslope and new window in gable end
69 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Ben Greene
Refused
2024-02-09
More
Certificate of Lawful Development Existing
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Use of dwelling house (Class C3) as HMO for up to six people (Class C4)
67 Cavendish Avenue, Sudbury, Harrow, HA1 3RF · premises record
Officer Catriona Cooke
Approved
2023-12-15
More
Certificate of Lawful Development Proposed
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).
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 6 applications
Case officer on 4 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 6 applications
Case officer on 4 applications
Case officer on 3 applications
Show all 10 rows
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
Development
What could it become?
Planning precedent39 applications and 39 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy11 EPC records; ratings C: 2, D: 9.
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.
8 intent signals recorded in this postcode
Charge registered · Portfolio seller · Long hold · HMO licensed · Company dissolving
Subscribe to see the signals →Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.