Planning Atlas
Planning AtlasHarrowMarlborough wardPL/2857/25
Planning application · Harrow

PL/2857/25.

21 Welldon Crescent, Harrow, HA1 1QP

Full / Other Planning at 21 Welldon Crescent, Harrow, HA1 1QP, received 3 Nov 2025 — refused on 23 Dec 2025 (delegated, Sarah Odu).

HarrowMarlboroughHA1 1QPPL/2857/25
ApprovedRefusedOther
At a glance · this applicationHarrow profile →
Refused
Outcome
23 Dec 2025
7 wks
Decision time
inside the 8-week target
Conditions
not captured
20
Documents
20 linked
Objections
not captured
No
Appeal
none recorded
Record from the Harrow planning register as captured; documents link to the council's own files. Nearby applications are context, not part of this application.
Application

What is it?

Conversion of single dwelling into three flats (1 x 1 bed & 2 x 2 beds); external alterations

Reference
PL/2857/25
Type
Full Planning Application
Agent / consultant
Case officer
Postcode
HA1 1QP
Council
Received
3 Nov 2025
Target date
29 Dec 2025
Decision date
23 Dec 2025
Decision route
Delegated (officer)
Status
Decision Issued
Reference
PL/2857/25
Type
Full Planning Application
Show all 15 rows
Agent / consultant
Case officer
Postcode
HA1 1QP
Council
Received
3 Nov 2025
Target date
29 Dec 2025
Decision date
23 Dec 2025
Decision route
Delegated (officer)
Status
Decision Issued
Documents

What was filed?

Document
Published
View
Decision Notice
23 Dec 2025
Officer Report
19 Dec 2025
Proposed floor plans
3 Nov 2025
Proposed floor plans
3 Nov 2025
Proposed floor plans
3 Nov 2025
existing floor plans - roof
3 Nov 2025
Proposed Elevations - section
3 Nov 2025
Existing Elevations
3 Nov 2025
existing & proposed elevation - front
3 Nov 2025
Proposed Floor Plan - Loft
3 Nov 2025
Decision Notice
23 Dec 2025
Officer Report
19 Dec 2025
Proposed floor plans
3 Nov 2025
Show all 10 rows
Proposed floor plans
3 Nov 2025
Proposed floor plans
3 Nov 2025
existing floor plans - roof
3 Nov 2025
Proposed Elevations - section
3 Nov 2025
Existing Elevations
3 Nov 2025
existing & proposed elevation - front
3 Nov 2025
Proposed Floor Plan - Loft
3 Nov 2025

Documents open on the Harrow portal. View the application page ↗

Decision

What happened?

Refused on 23 Dec 2025, delegated decision by Sarah Odu — 7 weeks from submission.

Timeline

Date
Event
3 Nov 2025
Application received
29 Dec 2025
Statutory target date
23 Dec 2025
Delegated decision: Refused · Sarah Odu
3 Nov 2025
Application received
29 Dec 2025
Statutory target date
23 Dec 2025
Delegated decision: Refused · Sarah Odu

Why it was refused

Reason
As stated on the decision notice
1
-The proposal, by reason of the loss of the existing family housing and failure to re-provide adequate family units, would fail to provide adequate and appropriate housing mix which addresses the identified local needs, and would therefore be contrary to Policy H10 of the London Plan (2021), policy CS1.I of the Harrow Core Strategy (2012) and Policy DM24 of the Development Management Plan Local Policies (2013).
2
-The proposed subdivision of the rear amenity space, would break up the garden space of the existing dwelling and create unnecessary compact spaces which would break up the spatial pattern of rear gardens, contrary to the high design aspirations of the National Planning Policy Framework (2024), Policy D3.D of the London Plan (2021), Policy CS1.B of the Harrow Core Strategy (2012), Policy DM1 of the Harrow Development Management Policies Local Plan (2013), and the Harrow Residential Design Guide SPD (2010).
3
-The proposed development would result in poor quality accommodation that would not be fit for purpose due to the lack of basic amenities and privacy in the ground floor flat, poor stacking between flats 1 and 2, insufficient ventilation to the loft bathroom, inadequate gross internal area and constrained ceiling heights for the loft flat and insufficient access to high quality outdoor private amenity space to the detriment of future occupiers. The proposal would therefore be contrary to Policy D6 of the London Plan (2021), Policy CS1.K of the Core Strategy (2012) and Policy DM1, DM26 and DM27 of the Harrow Development Management Policies Local Plan (2013).
1
-The proposal, by reason of the loss of the existing family housing and failure to re-provide adequate family units, would fail to provide adequate and appropriate housing mix which addresses the identified local needs, and would therefore be contrary to Policy H10 of the London Plan (2021), policy CS1.I of the Harrow Core Strategy (2012) and Policy DM24 of the Development Management Plan Local Policies (2013).
2
-The proposed subdivision of the rear amenity space, would break up the garden space of the existing dwelling and create unnecessary compact spaces which would break up the spatial pattern of rear gardens, contrary to the high design aspirations of the National Planning Policy Framework (2024), Policy D3.D of the London Plan (2021), Policy CS1.B of the Harrow Core Strategy (2012), Policy DM1 of the Harrow Development Management Policies Local Plan (2013), and the Harrow Residential Design Guide SPD (2010).
3
-The proposed development would result in poor quality accommodation that would not be fit for purpose due to the lack of basic amenities and privacy in the ground floor flat, poor stacking between flats 1 and 2, insufficient ventilation to the loft bathroom, inadequate gross internal area and constrained ceiling heights for the loft flat and insufficient access to high quality outdoor private amenity space to the detriment of future occupiers. The proposal would therefore be contrary to Policy D6 of the London Plan (2021), Policy CS1.K of the Core Strategy (2012) and Policy DM1, DM26 and DM27 of the Harrow Development Management Policies Local Plan (2013).
Policies cited
H10DM24DM1NPPFD6DM26DM27

Public response

Comment counts were not captured for this application.

People

Who is involved?

Name
Role
Applicant — the party who applied, not necessarily the owner
Agent · consultant profile
Case officer — delegated decision
Applicant — the party who applied, not necessarily the owner
Agent · consultant profile
Case officer — delegated decision
Place

What affects it?

Context around the site — not part of this application. Designations over the site: use the map's designations filter (conservation areas, listed buildings, Article 4, flood risk …). Decisions within 250 metres of the site are listed below — context, not this application.

Other applications within 250 metres (context — nearby, not this application)

No other geocoded decision is recorded within 250 metres.