Object to a planning application in Barnet
Every objection in Barnet is read by a planning officer who can only weigh material planning considerations against the adopted plan. This page tells you where the application is, how long you have, which policies matter here, and how to write a letter that gets weighed rather than set aside.
Draft an objection or support letter for a Barnet application
Enter the application reference from the site notice or letter. Curtilage pulls the application, shows the closing date, and drafts a letter in your words citing only policies that exist. £19 per letter; drafting is free and you pay to unlock.
How objections work in Barnet
When an application is validated, Barnet notifies adjoining occupiers by letter, posts a site notice, or both. The neighbour consultation normally runs for 21 days. Comments go through the council's own portal (there is a comment link on every application page) or by email to the planning department, and they must give your name and address; anonymous comments are disregarded.
The officer's report will summarise objections under headings such as "residential amenity", "design" and "highways". A letter that already uses those headings, quotes the site-specific facts (which window, how far, which boundary) and names the policy engaged is the one that ends up in the report.
Policies an objection in Barnet can cite
From Barnet Local Plan 2021-2036, the policies most often engaged by neighbour objections:
| Policy | Title | Covers |
|---|---|---|
| CDH05 | Extensions | daylight and sunlight, design and character, noise and living conditions, overbearing impact and outlook, overlooking and privacy, house extensions, trees and landscape |
| CDH01 | Promoting High Quality Design | daylight and sunlight, design and character, flooding and drainage, heritage, noise and living conditions, overbearing impact and outlook, overlooking and privacy |
| HOU03 | Residential Conversions and Re-development of Larger Homes | daylight and sunlight, design and character, highway safety and parking, noise and living conditions, overbearing impact and outlook, overlooking and privacy |
| CDH08 | Barnet’s Heritage | design and character, heritage, house extensions, trees and landscape |
| TRC03 | Parking Management | design and character, highway safety and parking, house extensions |
| CDH07 | Amenity Space and Landscaping | design and character, flooding and drainage, noise and living conditions, trees and landscape |
| GSS12 | Redevelopment of Car Parks | daylight and sunlight, design and character, highway safety and parking, noise and living conditions, overbearing impact and outlook, overlooking and privacy |
| ECC03 | Water Management | daylight and sunlight, design and character, flooding and drainage, noise and living conditions, house extensions |
| CDH04 | Tall Buildings | daylight and sunlight, design and character, noise and living conditions |
| CDH06 | Basements and below ground development | design and character, flooding and drainage, highway safety and parking, noise and living conditions, house extensions, trees and landscape |
the National Planning Policy Framework (August 2026) applies alongside the local plan. In particular, national policy on living conditions, design and highway safety gives an objection its footing where the local plan is silent.
What does not count
- Loss of a private view
- Effect on the value of your home
- Competition with a business
- The applicant's identity, motives or past behaviour
- Private matters such as covenants, boundary disputes and rights to light as a private right
- Disturbance during construction
Curtilage lists any of these you raise separately and leaves them out of the letter, so the officer reads only the points that carry weight.
Frequently asked
How long do I have to object to a planning application in Barnet?
Neighbours are normally given 21 days from the date on the council's letter or site notice. The exact closing date is shown on the application's page on the council portal, and Curtilage shows it when you enter the reference. Many councils still accept comments up to the decision date, but do not rely on that.
What counts as a valid objection in Barnet?
Only material planning considerations: overlooking and loss of privacy, loss of daylight or sunlight, an overbearing effect, harm to the character of the area, highway safety and parking, noise, heritage, trees, flooding and conflict with Barnet Local Plan 2021-2036 and the National Planning Policy Framework (August 2026). Loss of a view, loss of property value and the applicant personally carry no weight.
Which policies apply in Barnet?
Barnet Local Plan 2021-2036, adopted 2025-03-04, together with the National Planning Policy Framework (August 2026). Curtilage holds 54 of these policies and cites only ones that exist.
Can I write a letter of support instead?
Yes. The same tool drafts a letter of support for an applicant or a neighbour who wants the scheme approved, grounded in the same policies.
Data: the Barnet register via the PlanIt aggregator, the council's adopted plan and the National Planning Policy Framework (August 2026), both under the Open Government Licence. Page updated 2026-09-14. Curtilage is not legal advice.