Postcode record · Harrow
HA5 1TT.
HA5 1TT has 39 known premises and 59 planning records — 34 approved of 49 decided (69.4%). 23 EPC records.
Postcode HA5 1TT · boundary not held, centred on the postcodeApprovedRefusedOther59 exact1 approximate60 on the map — every match
At a glance · this postcodeHarrow profile →
39
Premises
known addresses (UPRNs)
59
Applications
49 decided
69.4%
Approval rate
34 approved · 15 refused
23
EPC records
ratings C 5 · D 15 · E 2 · F 1
60
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?
HA5 1TT has 39 known premises and 59 planning records — 34 approved of 49 decided (69.4%). 23 EPC records.
Premises (18 of 39 shown)
Name
Details
UPRN 100021299055
UPRN 100021299057
UPRN 100021299059
UPRN 100021299061
UPRN 100021299063
UPRN 100021299065
UPRN 100021299067
UPRN 100021299069
UPRN 100021299071
UPRN 100021299073
UPRN 100021299055
UPRN 100021299057
UPRN 100021299059
Show all 10 rows
UPRN 100021299061
UPRN 100021299063
UPRN 100021299065
UPRN 100021299067
UPRN 100021299069
UPRN 100021299071
UPRN 100021299073
Planning
What happened?
59 planning applications across the postcode; 34 approved of 49 decided (69.4%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.80 metres high to the eaves
126 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Prior Notification - Larger Home Extension
Not required
2026-01-26
Certificate of Lawful Development (Proposed): Wrap around rear dormer; two rooflights in both side roof slopes
106 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Certificate of Lawful Development Proposed
Approved
2025-12-19
Single storey rear extension: 8.00 metres deep, 3.90 metres maximum height and 2.70 metres high to the eaves
106 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Prior Notification - Larger Home Extension
Not required
2025-12-19
Conversion of garage to habitable room, Replace garage door with window in front elevation, Alterations to roof of garage to raise height, Single storey rear extension, Raised patio to rear, External alterations
86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Householder
Approved
2025-02-13
Alterations and extension to roof to form end gable and rear dormer; Two rooflights in front roof slope; Single storey rear extension; First floor side extension; Alterations to garage roof; Conversion of garage to habitable room with installation of window to front; External alterations (Demolition
86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Householder
Refused
2024-10-30
Alterations and extension to roof to form end gable; rear dormer; two rooflights in front roof slope; single storey rear extension; first floor side extension; alterations to garage roof; conversion of garage to habitable room with installation of window to front; external alterations (demolition of
86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Householder
Refused
2024-07-22
Single storey rear extension: 5.00 metres deep, 3.12 metres maximum height and 2.95 metres high to the eaves
86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Prior Notification - Larger Home Extension
Not required
2024-06-05
Certificate of Lawful Development (Proposed): Alterations and extension to roof to form end gable; rear dormer with Juliette balcony; two rooflights in front roof slope
86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Certificate of Lawful Development Proposed
Approved
2024-03-20
Single storey rear extension: 6.00 metres deep, 3.15 metres maximum height and 2.95 metres high to the eaves
86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Prior Notification - Larger Home Extension
Refused
2024-03-20
Single storey front to side extension; external alterations
104 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Householder
Approved
2023-11-21
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.80 metres high to the eaves
126 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Not required
2026-01-26
More
Prior Notification - Larger Home Extension
Certificate of Lawful Development (Proposed): Wrap around rear dormer; two rooflights in both side roof slopes
106 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Approved
2025-12-19
More
Certificate of Lawful Development Proposed
Single storey rear extension: 8.00 metres deep, 3.90 metres maximum height and 2.70 metres high to the eaves
106 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Not required
2025-12-19
More
Prior Notification - Larger Home Extension
Show all 10 rows
Conversion of garage to habitable room, Replace garage door with window in front elevation, Alterations to roof of garage to raise height, Single storey rear extension, Raised patio to rear, External alterations
86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Approved
2025-02-13
More
Householder
Alterations and extension to roof to form end gable and rear dormer; Two rooflights in front roof slope; Single storey rear extension; First floor side extension; Alterations to garage roof; Conversion of garage to habitable room with installation of window to front; External alterations (Demolition
86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Refused
2024-10-30
More
Householder
Alterations and extension to roof to form end gable; rear dormer; two rooflights in front roof slope; single storey rear extension; first floor side extension; alterations to garage roof; conversion of garage to habitable room with installation of window to front; external alterations (demolition of
86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Refused
2024-07-22
More
Householder
Single storey rear extension: 5.00 metres deep, 3.12 metres maximum height and 2.95 metres high to the eaves
86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Not required
2024-06-05
More
Prior Notification - Larger Home Extension
Certificate of Lawful Development (Proposed): Alterations and extension to roof to form end gable; rear dormer with Juliette balcony; two rooflights in front roof slope
86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Approved
2024-03-20
More
Certificate of Lawful Development Proposed
Single storey rear extension: 6.00 metres deep, 3.15 metres maximum height and 2.95 metres high to the eaves
86 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Refused
2024-03-20
More
Prior Notification - Larger Home Extension
Single storey front to side extension; external alterations
104 Cannonbury Avenue, Pinner, Harrow, HA5 1TT · premises record
Approved
2023-11-21
More
Householder
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
Applicant on 6 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 7 applications
Agent on 3 applications
Applicant on 6 applications
Applicant on 2 applications
Applicant on 2 applications
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 7 applications
Agent on 3 applications
Development
What could it become?
Planning precedent59 applications and 60 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy23 EPC records; ratings C: 5, D: 15, E: 2, 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.
5 intent signals recorded in this postcode
Repeat sale · EPC F/G · Long hold · HMO licensed
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.