Planning application
46 Southway London N20 8DB
Works: Extension Loft or dormer Demolition Windows or glazing Small domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Roof extension involving hip to gable with juliette balcony and 1no. front facing rooflights. Single storey side extension following the demolition of existing conservatory. Conversion of the existing garage to habitable room insertion of window to replace the garage door. Erection of rear outbuilding
As published by the council, reference 26/0203/192
Application record
- Reference
- 26/0203/192
- Type
- Proposed Lawful Development Certificate
- Status
- Pending Consideration
- Received
- 20 Jan 2026
- Validated
- 20 Jan 2026
- Ward
- Totteridge & Woodside
- Postcode
- N20 8DB
Site history
Applications at this address on the Barnet register
This site has had 5 applications since 2025.
-
26/3003/192 Awaiting decision
46 Southway London N20 8DB
Erection of rear outbuilding
-
26/1360/HSE Awaiting decision
46 Southway London N20 8DB
Single storey side and rear extension following the demolition of the existing garage and conservatory. New front dormer window
-
26/0816/192 Decided
46 Southway London N20 8DB
Roof extension involving hip to gable with juliette balcony and 1no. front facing rooflights Conversion of the existing garage to habitable room insertion of window to replace the garage door
-
25/3830/HSE Awaiting decision
46 Southway London N20 8DB
Part single, part two-storey side and rear extension with 2no. rear juliette balconies to rear elevation, following demolition of existing garage and conservatory. Roof extension including 1no. dormer window to front, side and rear elevations. Single-storey rear outbuilding/garden room
Timeline
Dates from the published record
-
20 Jan 2026
Received by Barnet
-
10 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 17 March 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Barnet took a median of 43 days over the applications it decided in the last year.
Documents
Plans, drawings, consultee responses and the officer's report
15 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.
Trade members open them from here.
Open the documentsWhat happens while it is decided
This application is with Barnet for determination, against a statutory target of eight weeks. Over the last year Barnet decided lawful development applications in a median of 28 days. More in our guide to how long planning decisions take.
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 500 metres
-
46 Southway London N20 8DB
77% historically approved · decision due ~19 Jun
Single storey side and rear extension following the demolition of the existing garage and conservatory. New front dormer window
Awaiting decision Householder Extension Loft or dormer +2 14 docsSmall domestic -
46 Southway London N20 8DB
Roof extension involving hip to gable with juliette balcony and 1no. front facing rooflights Conversion of the existing garage to habitable room insertion of window to replace the garage door
Decided Lawful development Extension Loft or dormer +1 14 docs -
46 Southway London N20 8DB
77% historically approved · decision due ~13 Nov
Part single, part two-storey side and rear extension with 2no. rear juliette balconies to rear elevation, following demolition of existing garage and conservatory. Roof extension including 1no. dormer window to front, side and rear elevations. Single-storey rear outbuilding/garden room
Awaiting decision Householder Extension Loft or dormer +2 17 docsSmall domestic -
46 Southway London N20 8DB
79% historically approved · decision due ~9 Oct
Erection of rear outbuilding
Awaiting decision -
53 And 55 Southway London N20 8DD
Single storey side and rear extension with new access steps to no.53 with 6no. rooflights to no.53 and demolition of the existing garage, and single storey side extension with 2no. rooflights to no.55
Granted Full applications Extension Loft or dormer +1 9 docsSmall domestic -
69 Southway London N20 8DE
Roof extension involving hip to gable, rear dormer window, 3no. front facing rooflights, 1no. rooflight sited on flat roof and 2no. side gable windows. Demolition of chimney. (amended)
Decided Lawful development Extension Loft or dormer +2 11 docs
Other lawful development applications
In Barnet
-
26/2679/192 Decided
21 Myddelton Park London N20 0JH
Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).
-
26/1907/191 Decided
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)
-
26/2059/192 Decided
Low Ridge Rowley Lane Barnet EN5 3HS
Erection of a rear outbuilding
-
26/2066/192 Decided
355 Hendon Way London NW4 3NB
Roof extension involving rear dormer window and 3no. front facing rooflights. Removal of chimney on rear elevation (AMENDED DESCRIPTION)
-
26/1663/192 Decided
152 Deans Lane Edgware HA8 9NT
Change of use from single family dwellinghouse (Class C3a) to supported living accommodation Class C3b)