Planning application
57 Belmont Avenue Barnet EN4 9JS
Works: Extension Loft or dormer Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Roof extension involving hip to gable, rear dormer window with juliette balcony, 2no. front facing rooflights and new side gable windows. Removal of existing chimney stack
As published by the council, reference 25/4488/192
Application record
- Reference
- 25/4488/192
- Type
- Proposed Lawful Development Certificate
- Status
- Lawful
- Decision
- Granted As published: Lawful
- Received
- 11 Nov 2025
- Validated
- 12 Nov 2025
- Decided
- 16 Dec 2025
- Ward
- East Barnet
- Decision by
- Delegated Decision
- Postcode
- EN4 9JS
Site history
Applications at this address on the Barnet register
This site has had 4 applications since 2025: 2 approved, 0 refused.
-
26/3532/192 Granted
57 Belmont Avenue Barnet EN4 9JS
New front porch
-
26/3012/192 Awaiting decision
57 Belmont Avenue Barnet EN4 9JS
New front porch
-
25/4792/HSE Awaiting decision
57 Belmont Avenue Barnet EN4 9JS
Single storey rear extension with pitched roof, 2no. rooflights and alterations to patio area and access steps
Timeline
Dates from the published record
-
11 Nov 2025
Received by Barnet
-
12 Nov 2025
Validated
Checked as complete and ready for consideration.
-
16 Dec 2025
Decision issued: Lawful
-
10 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
5 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat this grant of permission means
Barnet granted permission on 16 December 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About lawful development applications
A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
57 Belmont Avenue Barnet EN4 9JS
77% historically approved · decision due ~2 Feb
Single storey rear extension with pitched roof, 2no. rooflights and alterations to patio area and access steps
Awaiting decision Householder Extension Loft or dormer 7 docsSmall domestic -
65 Belmont Avenue Barnet EN4 9JS
77% historically approved · decision due ~8 Jan
Single storey rear extension with new patio area, boundary fence/screen and associated access steps to garden level. New front porch. Roof extension involving rear dormer window and 2no. front facing rooflights (AMENDED DESCRIPTION AND AMENDED PLANS)
Awaiting decision Householder Extension Loft or dormer +1 5 docsSmall domestic -
17 Norrys Road Barnet EN4 9JX
Roof extension involving gable end, rear dormer window and 1no. side and 3no. front facing rooflights
Refused Lawful development Extension Loft or dormer +1 6 docs -
17 Norrys Road Barnet EN4 9JX
Roof extension involving partial hip to gable, rear dormer window and 4no. front facing rooflights. New side window
Granted Lawful development Extension Loft or dormer +1 6 docs -
59 Belmont Avenue Barnet EN4 9JS
79% historically approved · decision due ~5 Nov
New front porch
Awaiting decision ExtensionSmall domestic -
Small domestic
Other lawful development applications
In Barnet
-
26/2679/192 Granted
21 Myddelton Park London N20 0JH
Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).
-
26/1362/191 Refused
145 Cotswold Gardens London NW2 1PL
Use as a House in Multiple Occupation (HMO) for 6 people
-
26/1907/191 Granted
8 Golders Manor Drive London NW11 9HT
Use of the property as a self-contained residential unit at ground floor level and the first and second floors as a 4-bedroom, 4-person House in Multiple Occupation (Sui Generis) (AMENDED DESCRIPTION)
-
26/2392/192 Refused
6 Mostyn Road Edgware HA8 0JD
New front hardstanding and vehicular access to provide off-street parking
-
26/2059/192 Refused
Low Ridge Rowley Lane Barnet EN5 3HS
Erection of a rear outbuilding