Postcode record · Harrow
HA7 3NB.
HA7 3NB has 46 known premises and 38 planning records — 22 approved of 33 decided (66.7%). 30 EPC records.
Postcode HA7 3NB · boundary not held, centred on the postcodeApprovedRefusedOther38 on the map — every match
At a glance · this postcodeHarrow profile →
46
Premises
known addresses (UPRNs)
38
Applications
33 decided
66.7%
Approval rate
22 approved · 11 refused
57 days
Median decision time
average 69 days · 37 dated decisions
30
EPC records
ratings C 17 · D 11 · E 1 · F 1
38
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?
HA7 3NB has 46 known premises and 38 planning records — 22 approved of 33 decided (66.7%). 30 EPC records.
Premises (18 of 46 shown)
Name
Details
UPRN 10015353867
UPRN 100021318611
UPRN 100021318612
UPRN 100021318613
UPRN 100021318614
UPRN 100021318615
UPRN 100021318616
UPRN 100021318617
UPRN 100021318618
UPRN 100021318619
UPRN 10015353867
UPRN 100021318611
UPRN 100021318612
Show all 10 rows
UPRN 100021318613
UPRN 100021318614
UPRN 100021318615
UPRN 100021318616
UPRN 100021318617
UPRN 100021318618
UPRN 100021318619
Planning
What happened?
38 planning applications across the postcode; 22 approved of 33 decided (66.7%). Latest 30 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Change of Use from Dwellinghouse (Class C3) to Children's Residential Home for three children and two staff (Class C2)
2 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer Marcus Boddy
Full Planning Application
Refused
2026-02-16
Conversion of dwelling to two flats (1 X 2 beds & 1 X 2 beds); single storey front extension; offset existing side extension flank wall; bin / cycle storage; separate amenity space; boundary treatment; landscaping; parking; external alterations (Demolition of chimney stack)
43 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer Sarah Odu
Full Planning Application
Approved
2025-07-28
Front porch; single storey side to rear extension; external alteration
7 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Householder
Approved
2024-05-20
Conversion of dwelling to two flats (1 X 2 beds & 1 X 3 beds); single storey front extension; bin / cycle storage; separate amenity space; boundary treatment; landscaping; parking; external alterations (demolition of chimney stack)
43 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer Deniss Nikandrovs
Full Planning Application
Refused
2024-03-10
Detached outbuilding in rear garden used as self-contained annexe incidental to main dwelling (Demolition of existing outbuilding)
8 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer Chris Wentworth
Householder
Approved
2023-10-25
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.90 metres high to the eaves
8 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer Marcus Boddy
Prior Notification - Larger Home Extension
Not required
2023-10-25
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.70 metres high to the eaves.
10 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer WILLHO Will Hossack
Prior Notification - Larger Home Extension
Not required
2020-11-10
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations to roof to form end gable; rear dormer; two rooflights in front roofslope
43 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer BD Billie Dainton
Certificate of Lawful Development Existing
Approved
2020-09-29
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations to roof to replace existing rear dormer with an enlarged rear dormer; three rooflights in front roofslope; outbuilding for use as storage and garden furniture ancillary to the use of the main dwellinghouse.
10 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer WILLHO Will Hossack
Certificate of Lawful Development Existing
Approved
2020-09-28
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.70 metres high to the eaves.
10 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer WILLHO Will Hossack
Prior Notification - Larger Home Extension
Refused
2020-09-28
Change of Use from Dwellinghouse (Class C3) to Children's Residential Home for three children and two staff (Class C2)
2 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer Marcus Boddy
Refused
2026-02-16
More
Full Planning Application
Conversion of dwelling to two flats (1 X 2 beds & 1 X 2 beds); single storey front extension; offset existing side extension flank wall; bin / cycle storage; separate amenity space; boundary treatment; landscaping; parking; external alterations (Demolition of chimney stack)
43 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer Sarah Odu
Approved
2025-07-28
More
Full Planning Application
Front porch; single storey side to rear extension; external alteration
7 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Approved
2024-05-20
More
Householder
Show all 10 rows
Conversion of dwelling to two flats (1 X 2 beds & 1 X 3 beds); single storey front extension; bin / cycle storage; separate amenity space; boundary treatment; landscaping; parking; external alterations (demolition of chimney stack)
43 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer Deniss Nikandrovs
Refused
2024-03-10
More
Full Planning Application
Detached outbuilding in rear garden used as self-contained annexe incidental to main dwelling (Demolition of existing outbuilding)
8 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer Chris Wentworth
Approved
2023-10-25
More
Householder
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.90 metres high to the eaves
8 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer Marcus Boddy
Not required
2023-10-25
More
Prior Notification - Larger Home Extension
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.70 metres high to the eaves.
10 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer WILLHO Will Hossack
Not required
2020-11-10
More
Prior Notification - Larger Home Extension
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations to roof to form end gable; rear dormer; two rooflights in front roofslope
43 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer BD Billie Dainton
Approved
2020-09-29
More
Certificate of Lawful Development Existing
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations to roof to replace existing rear dormer with an enlarged rear dormer; three rooflights in front roofslope; outbuilding for use as storage and garden furniture ancillary to the use of the main dwellinghouse.
10 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer WILLHO Will Hossack
Approved
2020-09-28
More
Certificate of Lawful Development Existing
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.70 metres high to the eaves.
10 Sitwell Grove, Stanmore, Harrow, HA7 3NB · premises record
Officer WILLHO Will Hossack
Refused
2020-09-28
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.
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 6 applications
Case officer on 3 applications
Case officer on 2 applications
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 6 applications
Case officer on 3 applications
Case officer on 2 applications
Show all 10 rows
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
Development
What could it become?
Planning precedent38 applications and 38 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy30 EPC records; ratings C: 17, D: 11, 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.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.