Planning Atlas
AtlasPostcodeHA54UD
Dev
Session
Tier
Postcode record · Harrow

HA5 4UD.

HA5 4UD has 17 known premises and 30 planning records — 20 approved of 26 decided (76.9%). 8 EPC records.

Postcode unitHarrowOS boundary
HarrowHA5 4UD
Postcode HA5 4UD · boundary not held, centred on the postcodeApprovedRefusedOther30 on the map — every match
At a glance · this postcodeHarrow profile →
17
Premises
known addresses (UPRNs)
30
Applications
26 decided
76.9%
Approval rate
20 approved · 6 refused
62 days
Median decision time
average 65 days · 29 dated decisions
8
EPC records
ratings D 3 · E 5
30
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 4UD has 17 known premises and 30 planning records — 20 approved of 26 decided (76.9%). 8 EPC records.

Premises

Planning

What happened?

30 planning applications across the postcode; 20 approved of 26 decided (76.9%). Latest 30 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
Pinnerwood Park Estate Conservation Area False acacia (front garden): Dismantle. Included unions / compression forks at ground level with decay between included unions Sycamore (front): Reduce height by up to 3m and lateral spread on all sides by up to 2m to previous pruning points
7 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Trees in a Conservation Area
No objection
2026-03-23
Pinnerwood Park Estate Conservation Area Ash (rear garden): Re-pollard back to previous reduction points as part of ongoing cyclical maintenance. Works will maintain crown size, prevent excessive regrowth, and support continued structural integrity.
5 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Trees in a Conservation Area
No objection
2025-11-17
Damson (rear garden, left hand boundary): Clear up fallen limb. Fell remainder of tree to ground level. Tree had previous major limb failure resulting in large tear-out wound. Tree prone to further failures
21 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Trees in a Conservation Area
No objection
2023-10-25
Single storey rear infill extension; alterations to roof; rear dormer; two rooflights in side roofslope; external alterations
27 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Officer Agnes Wanja
Householder
Refused
2023-05-10
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Detached outbuilding at rear for use as Gym
27 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Officer Ben Greene
Certificate of Lawful Development Existing
Approved
2022-11-24
Single storey rear infill extension; Rear Dormer; External alterations
27 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Officer Agnes Wanja
Householder
Approved
2022-11-24
Prune T1 Ash located at the back of property right corner according to the following specifications: . Pollard to remove all sprouts from cut ends of branches to maintain size and appearance
5 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Trees in a Conservation Area
Approved
2022-01-19
INVALID
15 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Officer Zoe Levassor
Householder
Withdrawn
2021-12-30
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations and extension to roof to form end gable; rear dormer; two rooflights in front roofslope; window in end gable
27 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Certificate of Lawful Development Existing
Refused
2021-12-23
ASH TREE IN FRONT GARDEN. REDUCE BY 30% AS CANOPY REACHING HOUSE LINE/ROOF. THIS IS THE ONLY TREE IN FRONT GARDEN.
11 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Trees in a Conservation Area
Approved
2020-09-21
Pinnerwood Park Estate Conservation Area False acacia (front garden): Dismantle. Included unions / compression forks at ground level with decay between included unions Sycamore (front): Reduce height by up to 3m and lateral spread on all sides by up to 2m to previous pruning points
7 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
No objection
2026-03-23
More
Trees in a Conservation Area
Pinnerwood Park Estate Conservation Area Ash (rear garden): Re-pollard back to previous reduction points as part of ongoing cyclical maintenance. Works will maintain crown size, prevent excessive regrowth, and support continued structural integrity.
5 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
No objection
2025-11-17
More
Trees in a Conservation Area
Damson (rear garden, left hand boundary): Clear up fallen limb. Fell remainder of tree to ground level. Tree had previous major limb failure resulting in large tear-out wound. Tree prone to further failures
21 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
No objection
2023-10-25
More
Trees in a Conservation Area
Show all 10 rows
Single storey rear infill extension; alterations to roof; rear dormer; two rooflights in side roofslope; external alterations
27 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Officer Agnes Wanja
Refused
2023-05-10
More
Householder
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Detached outbuilding at rear for use as Gym
27 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Officer Ben Greene
Approved
2022-11-24
More
Certificate of Lawful Development Existing
Single storey rear infill extension; Rear Dormer; External alterations
27 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Officer Agnes Wanja
Approved
2022-11-24
More
Householder
Prune T1 Ash located at the back of property right corner according to the following specifications: . Pollard to remove all sprouts from cut ends of branches to maintain size and appearance
5 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Approved
2022-01-19
More
Trees in a Conservation Area
INVALID
15 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Officer Zoe Levassor
Withdrawn
2021-12-30
More
Householder
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations and extension to roof to form end gable; rear dormer; two rooflights in front roofslope; window in end gable
27 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Refused
2021-12-23
More
Certificate of Lawful Development Existing
ASH TREE IN FRONT GARDEN. REDUCE BY 30% AS CANOPY REACHING HOUSE LINE/ROOF. THIS IS THE ONLY TREE IN FRONT GARDEN.
11 Marsworth Avenue, Hatch End, Pinner, Harrow, HA5 4UD · premises record
Approved
2020-09-21
More
Trees in a Conservation Area

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?

Every mapped designation touching a premises in this postcode, with how many of its 17 premises each one covers.

Designation
Coverage
Conservation Area
Pinnerwood Park Estate Conservation Area PART 2 · reference COA00000172 · covers 17 of 17 premises. Demolition, alterations, trees and design are subject to additional heritage controls.
Conservation Area
Pinnerwood Park Estate Conservation Area PART 2 · reference COA00000172 · covers 17 of 17 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
Case officer on 9 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 1 application
Case officer on 1 application
Case officer on 9 applications
Case officer on 2 applications
Case officer on 2 applications
Show all 10 rows
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 1 application
Case officer on 1 application
Development

What could it become?

Planning precedent30 applications and 30 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy8 EPC records; ratings D: 3, E: 5.
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.

2 intent signals recorded in this postcode
Long hold
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Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.
HA5 4UD, Harrow: planning and property history | Planning Atlas