Planning Atlas
AtlasPostcodeHA11QP
Dev
Session
Tier
Postcode record · Harrow

HA1 1QP.

HA1 1QP has 39 known premises and 20 planning records — 13 approved of 18 decided (72.2%). 33 EPC records.

Postcode unitHarrowOS boundary
HarrowHA1 1QP
Postcode HA1 1QP · boundary not held, centred on the postcodeApprovedRefusedOther21 on the map — every match
At a glance · this postcodeHarrow profile →
39
Premises
known addresses (UPRNs)
20
Applications
18 decided
72.2%
Approval rate
13 approved · 5 refused
56 days
Median decision time
average 71 days · 20 dated decisions
33
EPC records
ratings C 7 · D 23 · E 3
21
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 1QP has 39 known premises and 20 planning records — 13 approved of 18 decided (72.2%). 33 EPC records.

Premises (18 of 39 shown)

Planning

What happened?

20 planning applications across the postcode; 13 approved of 18 decided (72.2%). Latest 20 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
Conversion of single dwelling into three flats (1 x 1 bed & 2 x 2 beds); external alterations
21 Welldon Crescent, Harrow, HA1 1QP · premises record
Officer Sarah Odu
Full Planning Application
Refused
2025-11-03
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Single storey rear extension to ground floor flat (1 x 3 beds) (demolition of rear extension)
49 Welldon Crescent, Harrow, HA1 1QP · premises record
Officer Marcus Boddy
Certificate of Lawful Development Existing
Withdrawn
2023-07-31
Single storey rear infill extension; external alterations
41 Welldon Crescent, Harrow, HA1 1QP · premises record
Householder
Refused
2021-06-23
Certificate of lawful development (proposed): Alterations to roof to form end gable and rear dormer; installation of three rooflights in front roofslope and new window in gable end
41 Welldon Crescent, Harrow, HA1 1QP · premises record
Certificate of Lawful Development Existing
Approved
2021-06-23
Single storey rear extension
35 Welldon Crescent, Harrow, HA1 1QP · premises record
Householder
Approved
2016-11-03
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): USE OF ROOM ON GROUND FLOOR OF DWELLINGHOUSE AS AN OFFICE FOR PRIVATE CAR (TAXI) HIRE
49A Welldon Crescent, Harrow, HA1 1QP · premises record
Certificate of Lawful Development Existing
Approved
2015-12-29
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): SINGLE STOREY REAR EXTENSION
41 Welldon Crescent, Harrow, HA1 1QP · premises record
Certificate of Lawful Development Existing
Approved
2014-11-25
CERTIFICATE OF LAWFUL DEVELOPMENT PROPOSED): REAR DORMER WITH JULIETTE BALCONY; INSTALLATION OF ROOFLIGHTS IN FRONT ROOFSLOPE AND NEW WINDOW IN SIDE AND EXTENSION OF SOIL AND VENT PIPE
35 Welldon Crescent, Harrow, HA1 1QP · premises record
Certificate of Lawful Development Existing
Approved
2014-10-08
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): SINGLE STOREY REAR EXTENSION
41 Welldon Crescent, Harrow, HA1 1QP · premises record
Certificate of Lawful Development Existing
Approved
2014-08-07
Single Storey Rear Extension: 6.0 Metres deep, 3.0 Metres maximum height and 2.9 Metres high to the eaves.
41 Welldon Crescent, Harrow, HA1 1QP · premises record
Prior Notification - Larger Home Extension
Refused
2014-08-07
Conversion of single dwelling into three flats (1 x 1 bed & 2 x 2 beds); external alterations
21 Welldon Crescent, Harrow, HA1 1QP · premises record
Officer Sarah Odu
Refused
2025-11-03
More
Full Planning Application
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Single storey rear extension to ground floor flat (1 x 3 beds) (demolition of rear extension)
49 Welldon Crescent, Harrow, HA1 1QP · premises record
Officer Marcus Boddy
Withdrawn
2023-07-31
More
Certificate of Lawful Development Existing
Single storey rear infill extension; external alterations
41 Welldon Crescent, Harrow, HA1 1QP · premises record
Refused
2021-06-23
More
Householder
Show all 10 rows
Certificate of lawful development (proposed): Alterations to roof to form end gable and rear dormer; installation of three rooflights in front roofslope and new window in gable end
41 Welldon Crescent, Harrow, HA1 1QP · premises record
Approved
2021-06-23
More
Certificate of Lawful Development Existing
Single storey rear extension
35 Welldon Crescent, Harrow, HA1 1QP · premises record
Approved
2016-11-03
More
Householder
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): USE OF ROOM ON GROUND FLOOR OF DWELLINGHOUSE AS AN OFFICE FOR PRIVATE CAR (TAXI) HIRE
49A Welldon Crescent, Harrow, HA1 1QP · premises record
Approved
2015-12-29
More
Certificate of Lawful Development Existing
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): SINGLE STOREY REAR EXTENSION
41 Welldon Crescent, Harrow, HA1 1QP · premises record
Approved
2014-11-25
More
Certificate of Lawful Development Existing
CERTIFICATE OF LAWFUL DEVELOPMENT PROPOSED): REAR DORMER WITH JULIETTE BALCONY; INSTALLATION OF ROOFLIGHTS IN FRONT ROOFSLOPE AND NEW WINDOW IN SIDE AND EXTENSION OF SOIL AND VENT PIPE
35 Welldon Crescent, Harrow, HA1 1QP · premises record
Approved
2014-10-08
More
Certificate of Lawful Development Existing
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): SINGLE STOREY REAR EXTENSION
41 Welldon Crescent, Harrow, HA1 1QP · premises record
Approved
2014-08-07
More
Certificate of Lawful Development Existing
Single Storey Rear Extension: 6.0 Metres deep, 3.0 Metres maximum height and 2.9 Metres high to the eaves.
41 Welldon Crescent, Harrow, HA1 1QP · premises record
Refused
2014-08-07
More
Prior Notification - Larger Home Extension

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.

People

Who is involved?

Named on the latest 20 applications in this postcode — the party who applied, not the owner or occupier.

Name
Details
Case officer on 2 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 2 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 precedent20 applications and 21 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy33 EPC records; ratings C: 7, D: 23, E: 3.
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.

7 intent signals recorded in this postcode
Ageing director · 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.
HA1 1QP, Harrow: planning and property history | Planning Atlas