Postcode record · Brent
HA3 0RN.
HA3 0RN has 26 known premises and 40 planning records — 30 approved of 39 decided (76.9%). 13 EPC records.
Postcode HA3 0RN · boundary not held, centred on the postcodeApprovedRefusedOther40 exact40 on the map — every match
At a glance · this postcodeBrent profile →
26
Premises
known addresses (UPRNs)
40
Applications
39 decided
76.9%
Approval rate
30 approved · 6 refused
13
EPC records
ratings B 1 · C 3 · D 7 · E 1 · F 1
40
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 0RN has 26 known premises and 40 planning records — 30 approved of 39 decided (76.9%). 13 EPC records.
Premises (18 of 26 shown)
Name
Details
UPRN 202037672
UPRN 202037674
UPRN 202037676
UPRN 202037678
UPRN 202037680
UPRN 202037682
UPRN 202037684
UPRN 202037686
UPRN 202037688
UPRN 202037690
UPRN 202037672
UPRN 202037674
UPRN 202037676
Show all 10 rows
UPRN 202037678
UPRN 202037680
UPRN 202037682
UPRN 202037684
UPRN 202037686
UPRN 202037688
UPRN 202037690
Planning
What happened?
40 planning applications across the postcode; 30 approved of 39 decided (76.9%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Proposed garage conversion with addition of 1x front window and single storey side extension to the dwellinghouse.
7 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Householder
Approved
2025-10-29
Demolition of existing canopy and erection of single storey part rear extension to the dwellinghouse.
1 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Householder
Approved
2025-03-03
Proposed conversion of garage from storage to habitable room, replacement of garage door with window, alterations to roof of existing porch, alterations to rear fenestration and installation of 2x rear rooflights to dwellinghouse.
31 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Householder
Approved
2024-04-08
Proposed single storey rear extension to the dwellinghouse.
1 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Householder
Refused
2024-01-11
Conifer tree in rear garden: Fell to ground level
29 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Applicant Inayat Shariff · Officer Julie Hughes
Conservation Area Tree Notification
Approved
2023-01-19
? T1 x1 Pine ? Fell and grind out stump ? T2 x2 Willow ? Fell and grind out stump ? T3 x1 Pear ? Fell and grind out stump ? T4 x1 Plum ? Fell and grind out stump
47 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Conservation Area Tree Notification
Approved
2022-04-21
Proposed conversion of garage into habitable room replacing existing door with window to dwellinghouse.
47 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Householder
Approved
2020-09-08
Conversion of the adjoining garage to a habitable room, installation of replacement upvc windows to all elevations including replacement upvc front door, replacement roof tiles, erection of a single storey rear garden outbuilding and alteration to the existing porch roof.
31 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Householder
Approved
2019-12-20
Proposed single storey rear extension, conversion of garage into habitable room to include raising the roof and replacement of garage door with window and associated landscaping to front garden of dwellinghouse
21 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Householder
Approved
2019-02-04
Replacement of double glazing windows and existing porch door to front elevation of dwellinghouse
25 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Householder
Approved
2018-11-27
Proposed garage conversion with addition of 1x front window and single storey side extension to the dwellinghouse.
7 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Approved
2025-10-29
More
Householder
Demolition of existing canopy and erection of single storey part rear extension to the dwellinghouse.
1 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Approved
2025-03-03
More
Householder
Proposed conversion of garage from storage to habitable room, replacement of garage door with window, alterations to roof of existing porch, alterations to rear fenestration and installation of 2x rear rooflights to dwellinghouse.
31 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Approved
2024-04-08
More
Householder
Show all 10 rows
Proposed single storey rear extension to the dwellinghouse.
1 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Refused
2024-01-11
More
Householder
Conifer tree in rear garden: Fell to ground level
29 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Applicant Inayat Shariff · Officer Julie Hughes
Approved
2023-01-19
More
Conservation Area Tree Notification
? T1 x1 Pine ? Fell and grind out stump ? T2 x2 Willow ? Fell and grind out stump ? T3 x1 Pear ? Fell and grind out stump ? T4 x1 Plum ? Fell and grind out stump
47 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Approved
2022-04-21
More
Conservation Area Tree Notification
Proposed conversion of garage into habitable room replacing existing door with window to dwellinghouse.
47 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Approved
2020-09-08
More
Householder
Conversion of the adjoining garage to a habitable room, installation of replacement upvc windows to all elevations including replacement upvc front door, replacement roof tiles, erection of a single storey rear garden outbuilding and alteration to the existing porch roof.
31 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Approved
2019-12-20
More
Householder
Proposed single storey rear extension, conversion of garage into habitable room to include raising the roof and replacement of garage door with window and associated landscaping to front garden of dwellinghouse
21 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Approved
2019-02-04
More
Householder
Replacement of double glazing windows and existing porch door to front elevation of dwellinghouse
25 Trevelyan Crescent, Harrow, HA3 0RN · premises record
Approved
2018-11-27
More
Householder
Building control
Building-control records are not yet collected for Brent — 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 26 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 for HMOs · reference A4D_HMO1 · covers 26 of 26 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Mount Stewart · reference A4D_CA6 · covers 26 of 26 premises. Some normally permitted changes may require planning permission.
Conservation Area
Mount Stewart · reference CA11 · covers 26 of 26 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Article 4 Direction Area
Article 4 for HMOs · reference A4D_HMO1 · covers 26 of 26 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Mount Stewart · reference A4D_CA6 · covers 26 of 26 premises. Some normally permitted changes may require planning permission.
Conservation Area
Mount Stewart · reference CA11 · covers 26 of 26 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
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 2 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
Applicant on 1 application
Applicant on 1 application
Applicant on 2 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
Applicant on 1 application
Applicant on 1 application
Development
What could it become?
Planning precedent40 applications and 40 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy13 EPC records; ratings B: 1, C: 3, D: 7, 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 ProOwnership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
6 intent signals recorded in this postcode
preapp_dormant · 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.