Postcode record · Harrow
HA3 8NN.
HA3 8NN has 54 known premises and 65 planning records — 40 approved of 59 decided (67.8%). 18 EPC records.
Postcode HA3 8NN · boundary not held, centred on the postcodeApprovedRefusedOther65 on the map — every match
At a glance · this postcodeHarrow profile →
54
Premises
known addresses (UPRNs)
65
Applications
59 decided
67.8%
Approval rate
40 approved · 19 refused
56 days
Median decision time
average 64 days · 63 dated decisions
18
EPC records
ratings C 2 · D 15 · F 1
65
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?
HA3 8NN has 54 known premises and 65 planning records — 40 approved of 59 decided (67.8%). 18 EPC records.
Premises (18 of 54 shown)
Name
Details
UPRN 10070261249
UPRN 10091093762
UPRN 10091093763
UPRN 10091093764
UPRN 10091096041
UPRN 10091096042
UPRN 10091096043
UPRN 100021258056
UPRN 100021258058
UPRN 100021258060
UPRN 10070261249
UPRN 10091093762
UPRN 10091093763
Show all 10 rows
UPRN 10091093764
UPRN 10091096041
UPRN 10091096042
UPRN 10091096043
UPRN 100021258056
UPRN 100021258058
UPRN 100021258060
Planning
What happened?
65 planning applications across the postcode; 40 approved of 59 decided (67.8%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension: 6.00 metres deep, 3.40 metres maximum height and 3.00 metres high to the eaves
134 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer Lee Connor
Prior Notification - Larger Home Extension
Not required
2025-11-20
Single storey front extension incorporating porch, Single storey side extension, Alterations to roof of rear extension
100 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer Kanchan Sharma
Householder
Approved
2025-03-28
Vehicle Access
138 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer FEC Fernanda Calore
Householder
Approved
2022-02-07
Single Storey Rear Extension: 6 metres deep, 4 metres maximum height, 2.750 metres high to the eaves
132 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer LPC Lap Pan Chong
Prior Notification - Larger Home Extension
Not required
2019-08-05
Single storey outbuilding in rear garden (retrospective)
120A Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer WILLHO Will Hossack
Full Planning Application
Refused
2019-04-10
Certificate of lawful development (proposed): Outbuilding at rear for use as playhouse
120 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer WILLHO Will Hossack
Certificate of Lawful Development Existing
Refused
2019-04-10
Single storey front extension incorporating front porch, single storey side to rear extension (Demolition of garage)
70 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer SH Steven Hoang
Householder
Refused
2018-03-22
Single Storey Rear Extension extending 6 metres beyond the original rear wall, 3.2 metres maximum height, 3 metres high to the eaves
70 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer PE Peter Elia
Prior Notification - Larger Home Extension
Not required
2018-03-22
Vehicle crossover
130 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer SN Sinead Normoyle
Full Planning Application
Approved
2016-11-07
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): ALTERATIONS TO ROOF TO FORM END GABLE, REAR DORMER AND INSERTION OF THREE ROOFLIGHTS IN FRONT ROOFSLOPE
78 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer CG Conor Guilfoyle
Certificate of Lawful Development Existing
Approved
2016-04-26
Single storey rear extension: 6.00 metres deep, 3.40 metres maximum height and 3.00 metres high to the eaves
134 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer Lee Connor
Not required
2025-11-20
More
Prior Notification - Larger Home Extension
Single storey front extension incorporating porch, Single storey side extension, Alterations to roof of rear extension
100 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer Kanchan Sharma
Approved
2025-03-28
More
Householder
Vehicle Access
138 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer FEC Fernanda Calore
Approved
2022-02-07
More
Householder
Show all 10 rows
Single Storey Rear Extension: 6 metres deep, 4 metres maximum height, 2.750 metres high to the eaves
132 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer LPC Lap Pan Chong
Not required
2019-08-05
More
Prior Notification - Larger Home Extension
Single storey outbuilding in rear garden (retrospective)
120A Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer WILLHO Will Hossack
Refused
2019-04-10
More
Full Planning Application
Certificate of lawful development (proposed): Outbuilding at rear for use as playhouse
120 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer WILLHO Will Hossack
Refused
2019-04-10
More
Certificate of Lawful Development Existing
Single storey front extension incorporating front porch, single storey side to rear extension (Demolition of garage)
70 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer SH Steven Hoang
Refused
2018-03-22
More
Householder
Single Storey Rear Extension extending 6 metres beyond the original rear wall, 3.2 metres maximum height, 3 metres high to the eaves
70 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer PE Peter Elia
Not required
2018-03-22
More
Prior Notification - Larger Home Extension
Vehicle crossover
130 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer SN Sinead Normoyle
Approved
2016-11-07
More
Full Planning Application
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): ALTERATIONS TO ROOF TO FORM END GABLE, REAR DORMER AND INSERTION OF THREE ROOFLIGHTS IN FRONT ROOFSLOPE
78 Christchurch Avenue, Kenton, Harrow, HA3 8NN · premises record
Officer CG Conor Guilfoyle
Approved
2016-04-26
More
Certificate of Lawful Development Existing
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).
Kenmore Avenue0 mKingshill Drive0 mChristchurch Avenue0 mUrban Footpath 33 From 24a Beaufort Avenue To 102 Christchurch Avenue1 mBradenham Road6 mBrampton Grove9 mKingshill Avenue10 mBeaufort Avenue42 mUrban Footpath 34 From 47 Kenmore Avenue To Opposite 65 Christchurch Gardens45 m
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 5 applications
Case officer on 4 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 6 applications
Case officer on 5 applications
Case officer on 4 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 precedent65 applications and 65 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy18 EPC records; ratings C: 2, D: 15, 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.
12 intent signals recorded in this postcode
Price decline · 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.