Postcode record · Harrow
HA1 3AA.
HA1 3AA has 17 known premises and 11 planning records — 4 approved of 9 decided (44.4%). 8 EPC records.
Postcode HA1 3AA · boundary not held, centred on the postcodeApprovedRefusedOther24 on the map — every match
At a glance · this postcodeHarrow profile →
17
Premises
known addresses (UPRNs)
11
Applications
9 decided
44.4%
Approval rate
4 approved · 3 refused
8
EPC records
ratings C 4 · D 2 · E 1 · F 1
24
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 3AA has 17 known premises and 11 planning records — 4 approved of 9 decided (44.4%). 8 EPC records.
Premises
Name
Details
UPRN 10002293326
UPRN 10002294000
UPRN 10002294001
UPRN 10070266114
UPRN 10070266115
UPRN 10070269009
UPRN 10070269010
UPRN 10070269011
UPRN 10094043527
UPRN 10094044906
UPRN 10002293326
UPRN 10002294000
UPRN 10002294001
Show all 10 rows
UPRN 10070266114
UPRN 10070266115
UPRN 10070269009
UPRN 10070269010
UPRN 10070269011
UPRN 10094043527
UPRN 10094044906
Planning
What happened?
11 planning applications across the postcode; 4 approved of 9 decided (44.4%). Latest 11 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension: 6.00 metres deep, 3.30 metres maximum height and 3.00 metres high to the eaves
17 Grove Hill Road, Harrow, HA1 3AA · premises record
Prior Notification - Larger Home Extension
Pending Consideration
2026-05-21
Certificate of Lawful Proposed Development: Alterations to roof to form end gable and rear dormer with Juliette balcony, Installation of two roof lights in front roof slope and new window in end gable
17 Grove Hill Road, Harrow, HA1 3AA · premises record
Certificate of Lawful Development Proposed
Pending Consideration
2026-03-27
Single storey rear extension: 6.00 metres deep, 3.30 metres maximum height and 3.00 metres high to the eaves
17 Grove Hill Road, Harrow, HA1 3AA · premises record
Prior Notification - Larger Home Extension
Refused
2026-03-11
Single storey rear extension: 6.00 metres deep, 3.30 metres maximum height and 3.00 metres high to the eaves
17 Grove Hill Road, Harrow, HA1 3AA · premises record
Prior Notification - Larger Home Extension
Withdrawn
2026-01-28
Certificate of lawful development (proposed): Alterations to roof to hip to gable extension including a rear dormer with two rooflights; installation of two rooflights in front roofslope
17 Grove Hill Road, Harrow, HA1 3AA · premises record
Certificate of Lawful Development Proposed
Refused
2026-01-21
ALTERATIONS TO ROOF TO FORM END GABLE WITH WINDOW IN THE SIDE AND REAR DORMER; INSTALLATION OF ROOFLIGHT IN REAR ROOFSLOPE; SINGLE STOREY REAR EXTENSION
19 Grove Hill Road, Harrow, HA1 3AA · premises record
Householder
Approved
2015-10-14
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): SINGLE STOREY REAR EXTENSION; ALTERATIONS TO ROOF TO FORM END GABLE WITH SIDE WINDOW FOR LOFT CONVERSION; REAR DORMER; THREE ROOFLIGHTS IN FRONT ROOFSLOPE
15 Grove Hill Road, Harrow, HA1 3AA · premises record
Certificate of Lawful Development Existing
Approved
2015-02-15
CONVERSION TO TWO FLATS; SINGLE STOREY REAR EXTENSION; REAR DORMER; EXTERNAL ALTERATIONS
19 Grove Hill Road, Harrow, HA1 3AA · premises record
Applicant Mrs Patricia Buchanan · Agent David R Yeaman & Associates Architects · Officer GL Gerard Livett
Full Planning Application
Approved
2009-03-02
WITHDRAWN (APPLICANT) - CONVERSION OF DWELLINGHOUSE TO THREE FLATS; SINGLE STOREY REAR EXTENSION; ALTERATIONS TO ROOF TO FORM END GABLE AND REAR DORMER; ACCESS RAMP AND PARKING IN FRONT GARDEN; EXTERNAL ALTERATIONS
19 Grove Hill Road, Harrow, HA1 3AA · premises record
Full Planning Application
Withdrawn
2008-10-28
CONVERSION OF DWELLING HOUSE INTO FOUR FLATS; SINGLE STOREY REAR EXTENSIONS; SIDE AND REAR DORMERS; ACCESS RAMP WITH RAILINGS & PARKING IN FRONT GARDEN; EXTERNAL ALTERATIONS.
19 Grove Hill Road, Harrow, HA1 3AA · premises record
Full Planning Application
Refused
2008-06-26
Single storey rear extension: 6.00 metres deep, 3.30 metres maximum height and 3.00 metres high to the eaves
17 Grove Hill Road, Harrow, HA1 3AA · premises record
Pending Consideration
2026-05-21
More
Prior Notification - Larger Home Extension
Certificate of Lawful Proposed Development: Alterations to roof to form end gable and rear dormer with Juliette balcony, Installation of two roof lights in front roof slope and new window in end gable
17 Grove Hill Road, Harrow, HA1 3AA · premises record
Pending Consideration
2026-03-27
More
Certificate of Lawful Development Proposed
Single storey rear extension: 6.00 metres deep, 3.30 metres maximum height and 3.00 metres high to the eaves
17 Grove Hill Road, Harrow, HA1 3AA · premises record
Refused
2026-03-11
More
Prior Notification - Larger Home Extension
Show all 10 rows
Single storey rear extension: 6.00 metres deep, 3.30 metres maximum height and 3.00 metres high to the eaves
17 Grove Hill Road, Harrow, HA1 3AA · premises record
Withdrawn
2026-01-28
More
Prior Notification - Larger Home Extension
Certificate of lawful development (proposed): Alterations to roof to hip to gable extension including a rear dormer with two rooflights; installation of two rooflights in front roofslope
17 Grove Hill Road, Harrow, HA1 3AA · premises record
Refused
2026-01-21
More
Certificate of Lawful Development Proposed
ALTERATIONS TO ROOF TO FORM END GABLE WITH WINDOW IN THE SIDE AND REAR DORMER; INSTALLATION OF ROOFLIGHT IN REAR ROOFSLOPE; SINGLE STOREY REAR EXTENSION
19 Grove Hill Road, Harrow, HA1 3AA · premises record
Approved
2015-10-14
More
Householder
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): SINGLE STOREY REAR EXTENSION; ALTERATIONS TO ROOF TO FORM END GABLE WITH SIDE WINDOW FOR LOFT CONVERSION; REAR DORMER; THREE ROOFLIGHTS IN FRONT ROOFSLOPE
15 Grove Hill Road, Harrow, HA1 3AA · premises record
Approved
2015-02-15
More
Certificate of Lawful Development Existing
CONVERSION TO TWO FLATS; SINGLE STOREY REAR EXTENSION; REAR DORMER; EXTERNAL ALTERATIONS
19 Grove Hill Road, Harrow, HA1 3AA · premises record
Applicant Mrs Patricia Buchanan · Agent David R Yeaman & Associates Architects · Officer GL Gerard Livett
Approved
2009-03-02
More
Full Planning Application
WITHDRAWN (APPLICANT) - CONVERSION OF DWELLINGHOUSE TO THREE FLATS; SINGLE STOREY REAR EXTENSION; ALTERATIONS TO ROOF TO FORM END GABLE AND REAR DORMER; ACCESS RAMP AND PARKING IN FRONT GARDEN; EXTERNAL ALTERATIONS
19 Grove Hill Road, Harrow, HA1 3AA · premises record
Withdrawn
2008-10-28
More
Full Planning Application
CONVERSION OF DWELLING HOUSE INTO FOUR FLATS; SINGLE STOREY REAR EXTENSIONS; SIDE AND REAR DORMERS; ACCESS RAMP WITH RAILINGS & PARKING IN FRONT GARDEN; EXTERNAL ALTERATIONS.
19 Grove Hill Road, Harrow, HA1 3AA · premises record
Refused
2008-06-26
More
Full Planning Application
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?
Designations are shown per premises today (open any premises above); the postcode-level designation summary is built with the borough entity run. Use the map's designations filter to see them over the postcode now.
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 11 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 5 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Agent on 4 applications
Agent on 3 applications
Agent on 1 application
Agent on 1 application
Agent on 1 application
Applicant on 5 applications
Applicant on 2 applications
Applicant on 2 applications
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Agent on 4 applications
Agent on 3 applications
Agent on 1 application
Agent on 1 application
Agent on 1 application
Development
What could it become?
Planning precedent11 applications and 24 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy8 EPC records; ratings C: 4, D: 2, E: 1, 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 Pro
Ownership, 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
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.