Postcode record · Barnet
NW11 9BL.
NW11 9BL has 35 known premises and 28 planning records — 15 approved of 27 decided (55.6%). 20 EPC records.
Postcode NW11 9BL · boundary not held, centred on the postcodeApprovedRefusedOther28 exact28 on the map — every match
At a glance · this postcodeBarnet profile →
35
Premises
known addresses (UPRNs)
28
Applications
27 decided
55.6%
Approval rate
15 approved · 8 refused
20
EPC records
ratings C 2 · D 14 · E 4
28
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?
NW11 9BL has 35 known premises and 28 planning records — 15 approved of 27 decided (55.6%). 20 EPC records.
Premises (18 of 35 shown)
Name
Details
UPRN 200046090
UPRN 200046092
UPRN 200046094
UPRN 200046096
UPRN 200046098
UPRN 200046100
UPRN 200046102
UPRN 200046104
UPRN 200046106
UPRN 200046090
UPRN 200046092
Show all 10 rows
UPRN 200046094
UPRN 200046096
UPRN 200046098
UPRN 200046100
UPRN 200046102
UPRN 200046104
UPRN 200046106
Planning
What happened?
28 planning applications across the postcode; 15 approved of 27 decided (55.6%). Latest 28 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Single storey rear extension. Alterations to the existing patio area
22 Gainsborough Gardens London NW11 9BL · premises record
Householder Application
Approved
2025-07-10
Single storey rear extension with 2no. rooflights following part demolition of the existing extension
10 Gainsborough Gardens London NW11 9BL · premises record
Householder Application
Approved
2025-07-01
Single storey rear extension with a depth of 4.50 metres, a maximum height of 3.328 metres and an eaves height of 3.00 metres, following the demolition of the existing rear extension.
10 Gainsborough Gardens London NW11 9BL · premises record
Prior Notification (Householder)
Withdrawn
2025-05-30
Roof extension involving hip to gable, rear dormer window, 3no. front facing rooflights and new side gable window
10 Gainsborough Gardens London NW11 9BL · premises record
Proposed Lawful Development Certificate
Approved
2025-04-24
Single storey rear extension with a depth of 4.5m, a maximum height of 3.59m and an eaves height of 3m, following the demolition of the existing rear extension.
10 Gainsborough Gardens London NW11 9BL · premises record
Prior Notification (Householder)
Refused
2025-03-31
Installation of 1no. green Virgin Media cabinet
O/s 14 Gainsborough Gardens London NW11 9BL · premises record
Licence Notification
Not required
2024-12-03
Installation of 1no. green Virgin Media cabinet
O/S 48 Gainsborough Gardens London NW11 9BL · premises record
Licence Notification
Not required
2024-12-03
Formation of a swimming pool at basement level
14 Gainsborough Gardens London NW11 9BL · premises record
Existing Lawful Development Certificate
Refused
2023-10-23
Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights
10 Gainsborough Gardens London NW11 9BL · premises record
—
Approved
2023-08-04
Single storey rear extension with new decking area and access steps to garden level. New front porch
18 Gainsborough Gardens London NW11 9BL · premises record
Householder
Approved
2022-08-04
Single storey rear extension. Alterations to the existing patio area
22 Gainsborough Gardens London NW11 9BL · premises record
Approved
2025-07-10
More
Householder Application
Single storey rear extension with 2no. rooflights following part demolition of the existing extension
10 Gainsborough Gardens London NW11 9BL · premises record
Approved
2025-07-01
More
Householder Application
Single storey rear extension with a depth of 4.50 metres, a maximum height of 3.328 metres and an eaves height of 3.00 metres, following the demolition of the existing rear extension.
10 Gainsborough Gardens London NW11 9BL · premises record
Withdrawn
2025-05-30
More
Prior Notification (Householder)
Show all 10 rows
Roof extension involving hip to gable, rear dormer window, 3no. front facing rooflights and new side gable window
10 Gainsborough Gardens London NW11 9BL · premises record
Approved
2025-04-24
More
Proposed Lawful Development Certificate
Single storey rear extension with a depth of 4.5m, a maximum height of 3.59m and an eaves height of 3m, following the demolition of the existing rear extension.
10 Gainsborough Gardens London NW11 9BL · premises record
Refused
2025-03-31
More
Prior Notification (Householder)
Installation of 1no. green Virgin Media cabinet
O/s 14 Gainsborough Gardens London NW11 9BL · premises record
Not required
2024-12-03
More
Licence Notification
Installation of 1no. green Virgin Media cabinet
O/S 48 Gainsborough Gardens London NW11 9BL · premises record
Not required
2024-12-03
More
Licence Notification
Formation of a swimming pool at basement level
14 Gainsborough Gardens London NW11 9BL · premises record
Refused
2023-10-23
More
Existing Lawful Development Certificate
Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights
10 Gainsborough Gardens London NW11 9BL · premises record
Approved
2023-08-04
More
—
Single storey rear extension with new decking area and access steps to garden level. New front porch
18 Gainsborough Gardens London NW11 9BL · premises record
Approved
2022-08-04
More
Householder
Building control
Building-control records are not yet collected for Barnet — 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 35 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 35 of 35 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 35 of 35 premises. Some normally permitted changes may require planning permission.
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 28 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 3 applications
Applicant on 2 applications
Applicant on 2 applications
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 4 applications
Applicant on 3 applications
Applicant on 2 applications
Applicant on 2 applications
Show all 10 rows
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 4 applications
Development
What could it become?
Planning precedent28 applications and 28 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy20 EPC records; ratings C: 2, D: 14, E: 4.
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
The Developer PlanOwnership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
9 intent signals recorded in this postcode
HMO licence expiring · insolvency_property · Repeat sale · Beatable refusal · Long hold · HMO licensed · Company dissolving · Ageing director
Subscribe to see the signals →Thinking about a project here?
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.