Certificate of Lawful Proposed Development: Change of use from single dwelling (C3) to HMO for up to 6 people (C4), Alterations to roof to form end gable and rear dormer, Installation of two roof lights in front elevation, Single storey rear extension

37 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Mr Tejas Mistry · Agent Simply Planning · Officer Aadil Essa1

Certificate of Lawful Development Proposed

Approved

2025-09-30

PL/1786/25

Certificate of Lawful Development Proposed: Hip-to-gable roof alteration with rear dormer and insertion of 2no rooflights

37 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Tejas Mistry · Agent Simply Planning · Officer Aadil Essa1

Certificate of Lawful Development Proposed

Approved

2025-07-08

PL/1653/25

Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves

37 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Not disclosed · Agent Simply Planning · Officer Aadil Essa1

Prior Notification - Larger Home Extension

Not required

2025-06-26

PL/1039/25

Single storey side to rear extension (Demolition of attached garage and rear extension)

3 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Paul Alderson · Agent Freedom Homes Architects · Officer Deborah Ewenla1

Householder

Approved

2025-04-15

P/4112/22/PRIOR

Single storey rear extension: 6.00 metres deep, 3.75 metres maximum height and 3.00 metres high to the eaves

33 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Mr Xin Li · Agent MKSummer Ltd · Officer Agnes Wanja

Prior Notification - Larger Home Extension

Approved

2022-11-28

P/3438/22

CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations to roof to form end gable, rear dormer with juliette balcony and insertion of two rooflights in front roofslope; Enlargement of windows in ground and first floor side elevation

33 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Ms Xin Li · Agent MKsummer · Officer Agnes Wanja

Certificate of Lawful Development Existing

Approved

2022-09-29

P/3375/22/PRIOR

Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3.50 metres high to the eaves

33 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Mr Xin Li · Agent MKSummer Ltd · Officer Agnes Wanja

Prior Notification - Larger Home Extension

Refused

2022-09-20

P/3096/17/PRIOR

Single Storey Rear Extension: extending 6 metres beyond the original rear wall, 3.4 metres maximum height, 3 metres high to the eaves

23 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Mr H Patel · Agent KG Plan & Design Ltd · Officer Kimry Schlacter

Prior Notification - Larger Home Extension

Not required

2017-06-26

P/5314/15

Single Storey Rear Extension: extending 6 metres beyond the original rear wall, 3 metres maximum height, 3 metres high to the eaves

51 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Mr Rumman Allahwala · Agent Mr Ravindra Patel · Officer LC Lokendra Chemjong

Prior Notification - Larger Home Extension

Approved

2015-11-11

P/5170/15

Single Storey Rear Extension: extending 6 metres beyond the original rear wall, 3 metres maximum height, 3 metres high to the eaves

51 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Mr Rumman Allahwala · Agent Mr Ravindra Patel · Officer LC Lokendra Chemjong

Prior Notification - Larger Home Extension

Refused

2015-11-02

PL/2541/25

37 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Mr Tejas Mistry · Agent Simply Planning · Officer Aadil Essa1

Approved

2025-09-30

Certificate of Lawful Development Proposed

PL/1786/25

Certificate of Lawful Development Proposed: Hip-to-gable roof alteration with rear dormer and insertion of 2no rooflights

37 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Tejas Mistry · Agent Simply Planning · Officer Aadil Essa1

Approved

2025-07-08

Certificate of Lawful Development Proposed

PL/1653/25

Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves

37 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Not disclosed · Agent Simply Planning · Officer Aadil Essa1

Not required

2025-06-26

Prior Notification - Larger Home Extension

Show all 10 rows

PL/1039/25

Single storey side to rear extension (Demolition of attached garage and rear extension)

3 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Paul Alderson · Agent Freedom Homes Architects · Officer Deborah Ewenla1

Approved

2025-04-15

Householder

P/4112/22/PRIOR

Single storey rear extension: 6.00 metres deep, 3.75 metres maximum height and 3.00 metres high to the eaves

33 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Mr Xin Li · Agent MKSummer Ltd · Officer Agnes Wanja

Approved

2022-11-28

Prior Notification - Larger Home Extension

P/3438/22

33 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Ms Xin Li · Agent MKsummer · Officer Agnes Wanja

Approved

2022-09-29

Certificate of Lawful Development Existing

P/3375/22/PRIOR

Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3.50 metres high to the eaves

33 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Mr Xin Li · Agent MKSummer Ltd · Officer Agnes Wanja

Refused

2022-09-20

Prior Notification - Larger Home Extension

P/3096/17/PRIOR

Single Storey Rear Extension: extending 6 metres beyond the original rear wall, 3.4 metres maximum height, 3 metres high to the eaves

23 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Mr H Patel · Agent KG Plan & Design Ltd · Officer Kimry Schlacter

Not required

2017-06-26

Prior Notification - Larger Home Extension

P/5314/15

Single Storey Rear Extension: extending 6 metres beyond the original rear wall, 3 metres maximum height, 3 metres high to the eaves

51 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Mr Rumman Allahwala · Agent Mr Ravindra Patel · Officer LC Lokendra Chemjong

Approved

2015-11-11

Prior Notification - Larger Home Extension

P/5170/15

Single Storey Rear Extension: extending 6 metres beyond the original rear wall, 3 metres maximum height, 3 metres high to the eaves

51 St Margarets Avenue, South Harrow, Harrow, HA2 8BZ · premises record

Applicant Mr Rumman Allahwala · Agent Mr Ravindra Patel · Officer LC Lokendra Chemjong

Refused

2015-11-02

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.

Nearby postcodes and streets

Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).

HA2 8DA25 m HA2 8BP85 m HA2 8BS95 m HA2 8AP105 m HA2 8DN105 m HA2 8AW108 m HA2 8DU110 m HA2 8BJ114 m

St Margarets Avenue0 m Northolt Road0 m Urban Footpath 122 From 230 Northolt Road To 40 St Margarets Avenue4 m Barnaby Close16 m Eastcote Lane25 m Eastcote Avenue29 m Sherwood Road36 m Parkfield Road42 mUrban Footpath 121a From Opposite 73 Sherwood Road To 100a Roxeth Green Avenue Churchill Court47 mBeechwood Avenue48 m

People

Who is involved?

Named on the latest 21 applications in this postcode — the party who applied, not the owner or occupier.

Name

Details

Mr Rumman Allahwala

Applicant on 3 applications

Mr Xin Li

Applicant on 2 applications

Mr E Arguello Simbana

Applicant on 2 applications

Mr Tejas Mistry

Applicant on 1 application

Tejas Mistry

Applicant on 1 application

Not disclosed

Applicant on 1 application

Paul Alderson

Applicant on 1 application

Ms Xin Li

Applicant on 1 application

Mr H Patel

Applicant on 1 application

Mr Edwin

Applicant on 1 application

Mr Rumman Allahwala

Applicant on 3 applications

Mr Xin Li

Applicant on 2 applications

Mr E Arguello Simbana

Applicant on 2 applications

Show all 10 rows

Mr Tejas Mistry

Applicant on 1 application

Tejas Mistry

Applicant on 1 application

Not disclosed

Applicant on 1 application

Paul Alderson

Applicant on 1 application

Ms Xin Li

Applicant on 1 application

Mr H Patel

Applicant on 1 application

Mr Edwin

Applicant on 1 application

Development

What could it become?

Planning precedent21 applications and 21 mapped decisions in this postcode — precedent for what has been permitted and refused here.

Energy14 EPC records; ratings C: 1, D: 11, E: 2.

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.

Signal

Evidence

Long hold · 15 Nov 2000

last sale £148,000 · 25 yrs held · 45 ST MARGARETS AVENUE · source hmlr_ppd

Long hold · 30 Jun 1999

last sale £60,000 · 27 yrs held · 15 ST MARGARETS AVENUE · source hmlr_ppd

Long hold · 29 Jan 1999

last sale £130,000 · 27 yrs held · 1 ST MARGARETS AVENUE · source hmlr_ppd

Long hold · 15 Nov 2000

last sale £148,000 · 25 yrs held · 45 ST MARGARETS AVENUE · source hmlr_ppd

Long hold · 30 Jun 1999

last sale £60,000 · 27 yrs held · 15 ST MARGARETS AVENUE · source hmlr_ppd

Long hold · 29 Jan 1999

last sale £130,000 · 27 yrs held · 1 ST MARGARETS AVENUE · source hmlr_ppd

6 intent signals recorded in this postcode

Long hold · HMO licensed

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Thinking about a project here?

How long would a planning application take here? →

Harrow's real decision times and approval rates, measured from the record — not the statutory target.

Why do applications around here get refused? →

The most common refusal grounds in Harrow, by year and scheme type — the risks to know before applying.

Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.