Planning Atlas
Planning AtlasBarnetWhetstone wardN20 9AS
AtlasBarnetWhetstoneN20 9AS
Postcode record · Barnet

N20 9AS.

N20 9AS has 20 known premises and 76 planning records — 43 approved of 74 decided (58.1%). 14 EPC records.

BarnetWhetstoneN20 9AS
Postcode N20 9AS · boundary not held, centred on the postcodeApprovedRefusedOther76 exact76 on the map — every match
At a glance · this postcodeBarnet profile →
20
Premises
known addresses (UPRNs)
76
Applications
74 decided
58.1%
Approval rate
43 approved · 21 refused
14
EPC records
ratings C 3 · D 6 · E 4 · F 1
76
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?

N20 9AS has 20 known premises and 76 planning records — 43 approved of 74 decided (58.1%). 14 EPC records.

Premises (18 of 20 shown)

Planning

What happened?

76 planning applications across the postcode; 43 approved of 74 decided (58.1%). Latest 30 shown.

Reference
Proposal · address
Type
Outcome
Date · distance
1 x Cedar (applicants ref. T5) - Remove all dead wood and take off three lower branches. Standing in T49 of Tree Preservation Order. 1 x Sycamore (applicants ref. T6) - Remove ivy and thin crown by 20%. Standing in T50 of Tree Preservation Order. 1 x Sycamore (applicants ref. T7) - Remove ivy and thin crown by 20%. Standing in T51 of Tree Preservation Order. 1 x Cypress (applicants ref. T8) - Reduce height by 4 metres and width by 2 metres. Standing in T47 of Tree Preservation Order.
64 Oakleigh Park North London N20 9AS · premises record
Applicant Beare · Agent Green Bear · Officer Terry Wong
Works to TPO trees
Approved
2026-04-21
Single storey side extension with pitched roof and rooflights and single storey rear extension with flat roof and lantern rooflight following demolition of existing rear extension and detached garage. Roof extension including hip to gable, 1no. rear dormer with juliette balconies and 1no. front dormer window and associated alterations to side chimney. Removal of 1no. chimney to main roof. New raised rear patio. Changes to fenestration. Enlargement of existing front porch
48 Oakleigh Park North London N20 9AS · premises record
Applicant Mr & Mrs A Tailor · Agent TJR Planning · Officer Muhsin Ahmed
Householder Application
Pending Consideration
2026-04-15
Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.50m and an eaves height of 3.00m following the demolition of the existing rear extension and garage
48 Oakleigh Park North London N20 9AS · premises record
Applicant Mr Anil Tailor · Officer Lottie Burden
Prior Notification (Householder)
Not required
2026-02-05
1 x Oak (applicants ref. T1) - Reduce crown height and lateral spread by approximately 2 metres. Remove all dead wood for safety. Works proposed to improve light levels to the property and as part of routine tree maintenance. Standing in T10 of Tree Preservation Order. (Amended descriptions) 1 x Oak (applicants ref. T2) - Reduce crown height by approximately 2 metres and lateral spread by approximately 3 metres. The tree has a very large crown with substantial limbs encroaching over the roadside, public footpath, and garden area. Remove major dead wood for safety. Works proposed as part of general tree maintenance and to manage overhang onto the public highway. Standing in T5 of Tree Preservation Order. 1 x Oak (applicants ref. T3) - Reduce crown height and lateral spread by approximately 2 metres. Approximately half of the crown overhangs the public footpath and roadside. Remove major dead wood to reduce risk and for public safety. Works proposed as part of routine tree maintenance. Standing in T3 of Tree Preservation. 1 x Horse Chestnut (applicants ref. T4) - Reduce crown height by approximately 1.5 metres and lateral spread by approximately 2 metres. The tree is leaning towards a busy main road and roundabout. Remove major dead wood for safety. Works proposed to reduce risk and as part of general tree maintenance. Stanfding in T4 of Tree Preservation Order.
76 Oakleigh Park North London N20 9AS · premises record
Applicant Mr Josh Wiggins · Agent The Joshua Tree · Officer Terry Wong
Works to TPO trees
Split
2026-02-03
Roof extension involving hip to gable, rear dormer window and 2no. front facing rooflights. Alterations to 2no. existing chimney stacks.
48 Oakleigh Park North London N20 9AS · premises record
Applicant Mr Anil Tailor · Officer Muhsin Ahmed
Proposed Lawful Development Certificate
Approved
2026-01-15
1 x Horse Chestnut (applicants ref. T1) - Reduce the overall height and lateral spread by approximately 2-3 metres not exceeding the previous reduction point. Remove all major deadwood in the interest of public safety. Standing in T14 of Tree Preservation Order. (Amended descriptions)
74 Oakleigh Park North London N20 9AS · premises record
Applicant Mr Josh Wiggins · Agent The Joshua Tree · Officer Terry Wong
Works to TPO trees
Approved
2026-01-08
Roof extension involving rear dormer window with flat rooflight and 3no. front and 2no. side facing rooflights to both side elevations. Changes to side and rear fenestration
72 Oakleigh Park North London N20 9AS · premises record
Proposed Lawful Development Certificate
Approved
2025-10-29
1 x Horse Chestnut (applicants ref. T3) - Reduce the height and spread by approximately 2-2.5 metres to maintain balance and structure. The large limb extending over the roadside should be reduced by approximately 3 metres to lessen end weight, as it significantly overhangs the public footpath and roadside. Remove all dead wood for safety. A small cavity is visible on the main leader growing towards the roadside and pathway. Standing in T8 of Tree Preservation Order. 1 x Sycamore (applicants ref. T4) - Reduce the overall height by approximately 4 metres. Large sections of dead wood are visible throughout the canopy, with numerous dead branches extending over the public footpath and roadside. Remove all dead wood for safety. A small cavity at the base may weaken the structure and pose a potential hazard. Standing in T7 of Tree Preservation Order. 1 x Oak (applicants ref. T5) - Remove major dead wood throughout the canopy, particularly over the public footpath and roadside, to ensure public safety. Standing in T5 of Tree Preservation Order. (Tree Exempt)
76 Oakleigh Park North London N20 9AS · premises record
Applicant Mr Josh Wiggins · Agent The Joshua Tree · Officer Terry Wong
Works to TPO trees
Approved
2025-10-08
1 x Swamp cypress (applicants ref. T1) - Reduce height by 5m. There is extensive decay at the base of the tree. Reducing the height will reduce the loading on the base of the tree. Healthy branches 10cm diameter have snapped recently. Reduce overlong branches by 2m to balance the crown and reduce chance of over extended branch failure. Standing in T45 of Tree Preservation Order.
Wayland 66 Oakleigh Park North London N20 9AS · premises record
Applicant Rhian Bunyan · Agent Forbes Tree Care Ltd · Officer Terry Wong
Works to TPO trees
Approved
2024-11-08
1 x Red Oak (applicants ref. T1) - Reduce crown by 2.5m on all aspects. The tree hasn't been pruned in a long time, all the limbs are over extended. The top of one of the main stems failed in high wind recently and decay is visible in that stem. There are Ganoderma brackets at the base of the tree. The tree extends entirely over the road to the other side. Standing in T42 of Tree Preservation Order.
68 Oakleigh Park North London N20 9AS · premises record
Applicant Audrey Hooson · Agent Forbes Tree Care Ltd · Officer Jonathan Mills
Works to TPO trees
Approved
2024-04-19
1 x Cedar (applicants ref. T5) - Remove all dead wood and take off three lower branches. Standing in T49 of Tree Preservation Order. 1 x Sycamore (applicants ref. T6) - Remove ivy and thin crown by 20%. Standing in T50 of Tree Preservation Order. 1 x Sycamore (applicants ref. T7) - Remove ivy and thin crown by 20%. Standing in T51 of Tree Preservation Order. 1 x Cypress (applicants ref. T8) - Reduce height by 4 metres and width by 2 metres. Standing in T47 of Tree Preservation Order.
64 Oakleigh Park North London N20 9AS · premises record
Applicant Beare · Agent Green Bear · Officer Terry Wong
Approved
2026-04-21
More
Works to TPO trees
Single storey side extension with pitched roof and rooflights and single storey rear extension with flat roof and lantern rooflight following demolition of existing rear extension and detached garage. Roof extension including hip to gable, 1no. rear dormer with juliette balconies and 1no. front dormer window and associated alterations to side chimney. Removal of 1no. chimney to main roof. New raised rear patio. Changes to fenestration. Enlargement of existing front porch
48 Oakleigh Park North London N20 9AS · premises record
Applicant Mr & Mrs A Tailor · Agent TJR Planning · Officer Muhsin Ahmed
Pending Consideration
2026-04-15
More
Householder Application
Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.50m and an eaves height of 3.00m following the demolition of the existing rear extension and garage
48 Oakleigh Park North London N20 9AS · premises record
Applicant Mr Anil Tailor · Officer Lottie Burden
Not required
2026-02-05
More
Prior Notification (Householder)
Show all 10 rows
1 x Oak (applicants ref. T1) - Reduce crown height and lateral spread by approximately 2 metres. Remove all dead wood for safety. Works proposed to improve light levels to the property and as part of routine tree maintenance. Standing in T10 of Tree Preservation Order. (Amended descriptions) 1 x Oak (applicants ref. T2) - Reduce crown height by approximately 2 metres and lateral spread by approximately 3 metres. The tree has a very large crown with substantial limbs encroaching over the roadside, public footpath, and garden area. Remove major dead wood for safety. Works proposed as part of general tree maintenance and to manage overhang onto the public highway. Standing in T5 of Tree Preservation Order. 1 x Oak (applicants ref. T3) - Reduce crown height and lateral spread by approximately 2 metres. Approximately half of the crown overhangs the public footpath and roadside. Remove major dead wood to reduce risk and for public safety. Works proposed as part of routine tree maintenance. Standing in T3 of Tree Preservation. 1 x Horse Chestnut (applicants ref. T4) - Reduce crown height by approximately 1.5 metres and lateral spread by approximately 2 metres. The tree is leaning towards a busy main road and roundabout. Remove major dead wood for safety. Works proposed to reduce risk and as part of general tree maintenance. Stanfding in T4 of Tree Preservation Order.
76 Oakleigh Park North London N20 9AS · premises record
Applicant Mr Josh Wiggins · Agent The Joshua Tree · Officer Terry Wong
Split
2026-02-03
More
Works to TPO trees
Roof extension involving hip to gable, rear dormer window and 2no. front facing rooflights. Alterations to 2no. existing chimney stacks.
48 Oakleigh Park North London N20 9AS · premises record
Applicant Mr Anil Tailor · Officer Muhsin Ahmed
Approved
2026-01-15
More
Proposed Lawful Development Certificate
1 x Horse Chestnut (applicants ref. T1) - Reduce the overall height and lateral spread by approximately 2-3 metres not exceeding the previous reduction point. Remove all major deadwood in the interest of public safety. Standing in T14 of Tree Preservation Order. (Amended descriptions)
74 Oakleigh Park North London N20 9AS · premises record
Applicant Mr Josh Wiggins · Agent The Joshua Tree · Officer Terry Wong
Approved
2026-01-08
More
Works to TPO trees
Roof extension involving rear dormer window with flat rooflight and 3no. front and 2no. side facing rooflights to both side elevations. Changes to side and rear fenestration
72 Oakleigh Park North London N20 9AS · premises record
Approved
2025-10-29
More
Proposed Lawful Development Certificate
1 x Horse Chestnut (applicants ref. T3) - Reduce the height and spread by approximately 2-2.5 metres to maintain balance and structure. The large limb extending over the roadside should be reduced by approximately 3 metres to lessen end weight, as it significantly overhangs the public footpath and roadside. Remove all dead wood for safety. A small cavity is visible on the main leader growing towards the roadside and pathway. Standing in T8 of Tree Preservation Order. 1 x Sycamore (applicants ref. T4) - Reduce the overall height by approximately 4 metres. Large sections of dead wood are visible throughout the canopy, with numerous dead branches extending over the public footpath and roadside. Remove all dead wood for safety. A small cavity at the base may weaken the structure and pose a potential hazard. Standing in T7 of Tree Preservation Order. 1 x Oak (applicants ref. T5) - Remove major dead wood throughout the canopy, particularly over the public footpath and roadside, to ensure public safety. Standing in T5 of Tree Preservation Order. (Tree Exempt)
76 Oakleigh Park North London N20 9AS · premises record
Applicant Mr Josh Wiggins · Agent The Joshua Tree · Officer Terry Wong
Approved
2025-10-08
More
Works to TPO trees
1 x Swamp cypress (applicants ref. T1) - Reduce height by 5m. There is extensive decay at the base of the tree. Reducing the height will reduce the loading on the base of the tree. Healthy branches 10cm diameter have snapped recently. Reduce overlong branches by 2m to balance the crown and reduce chance of over extended branch failure. Standing in T45 of Tree Preservation Order.
Wayland 66 Oakleigh Park North London N20 9AS · premises record
Applicant Rhian Bunyan · Agent Forbes Tree Care Ltd · Officer Terry Wong
Approved
2024-11-08
More
Works to TPO trees
1 x Red Oak (applicants ref. T1) - Reduce crown by 2.5m on all aspects. The tree hasn't been pruned in a long time, all the limbs are over extended. The top of one of the main stems failed in high wind recently and decay is visible in that stem. There are Ganoderma brackets at the base of the tree. The tree extends entirely over the road to the other side. Standing in T42 of Tree Preservation Order.
68 Oakleigh Park North London N20 9AS · premises record
Applicant Audrey Hooson · Agent Forbes Tree Care Ltd · Officer Jonathan Mills
Approved
2024-04-19
More
Works to TPO trees

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 20 premises each one covers.

Designation
Coverage
Article 4 Direction Area
Article 4 Small Houses in Multiple Occupation (HMO) Area 1 · reference A4D14A1 · covers 20 of 20 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 20 of 20 premises. Some normally permitted changes may require planning permission.
People

Who is involved?

Named on the latest 30 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 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 1 application
Applicant on 3 applications
Applicant on 2 applications
Applicant on 1 application
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
Applicant on 1 application
Development

What could it become?

Planning precedent76 applications and 76 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy14 EPC records; ratings C: 3, D: 6, E: 4, 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

The Developer Plan

Ownership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.

2 intent signals recorded in this postcode
Price decline · EPC F/G
Subscribe to see the signals →
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.
N20 9AS, Barnet: Planning and Property History | Planning Atlas