Planning application
34 Northiam London N12 7HA
Works: Extension 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
Single storey rear extension with a proposed depth of 3.80 metres, maximum height of 3.00 metres and eaves height of 2.95 metres.
As published by the council, reference 25/3729/PNH
Application record
- Reference
- 25/3729/PNH
- Type
- Prior Notification (Householder)
- Status
- Pending Consideration
- Received
- 10 Sep 2025
- Validated
- 10 Sep 2025
- Ward
- Totteridge & Woodside
- Postcode
- N12 7HA
Timeline
Dates from the published record
-
10 Sep 2025
Received by Barnet
-
10 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 5 November 2025, 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.
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice registered in Sawbridgeworth
9 applications on PlanIndex · across 6 councils
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
6 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
The process from here
This application is with Barnet for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About prior approval applications
How this application type works
Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.
Nearby applications
Within 500 metres
-
39 Northiam London N12 7ET
79% historically approved · decision due ~9 Sep
Conversion of the existing garage into habitable room, insertion of window to replace the garage door
Awaiting decision Windows or glazing -
76 Southover London N12 7HB
Change of use of ground floor from hair salon (Use Class E) to residential (Use Class C3) for ancillary use to the first floor flat with associated alterations to front elevation
Granted Full applications 11 docs -
71 Southover London N12 7HG
77% historically approved · decision due ~15 Jun
Conversion of garage into habitable room including insertion of windows to replace existing garage doors and addition of new pitched roof with rooflight. Two storey side extension following demolition of existing store. Roof extension including 1no. side dormer window, 1no. rear dormer window and 2no. front facing rooflights and increase in ridge height. Installation of solar panels. Alterations to ground floor rear projection including changes to fenestration and insertion of rooflights to flat roof. Addition of 1no. AC condenser unit and 1no. Air Source Heat Pump to side elevation. Removal of chimneys
Awaiting decision Householder Extension Loft or dormer +3 6 docsDomestic -
11 Northiam London N12 7ET
Conversion of the existing garage into habitable room, insertion of window to replace garage door. Alterations to existing rear patio and erection of a rear outbuilding
Granted Householder Windows or glazing 11 docsSmall domestic -
40 Northiam London N12 7HJ
Single storey side and rear extension including alteration to the existing access steps following demolition of the side garage and rear outbuilding
Refused Householder Extension Demolition 14 docsSmall domestic -
40 Northiam London N12 7HJ
Roof extension involving hip to gable, rear dormer window, 3no. front facing rooflights and new side gable window
Decided Lawful development Extension Loft or dormer +1 8 docs
Other prior approval applications
In Barnet
-
26/3224/PNH Awaiting decision
Low Ridge Rowley Lane Barnet EN5 3HS
Single storey rear extension with a proposed depth of 8.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres.
-
26/3218/PNH Awaiting decision
22 Highcroft Gardens London NW11 0LX
2no. Single storey rear extensions with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres, and depth of 3.05 metres, maximum height of 3.00 metres and eaves height of 3.00 metres respectively, following demolition of existing roofed patio.
-
26/3212/PNH Awaiting decision
10 Richmond Road Barnet EN5 1SB
Single storey rear extension with a proposed depth of 5.54 metres, maximum height of 3.50 metres and eaves height of 3.00 metres.
-
26/3183/PNH Awaiting decision
34 Selvage Lane London NW7 3SP
Single storey rear extension with a proposed depth of 3.80 metres, maximum height of 3.00 metres and eaves height of 2.75 metres, following partial demolition of existing side manifestation.
-
26/3194/PNH Awaiting decision
74 Windsor Drive Barnet EN4 8UD
Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 2.60 metres, following demolition of the existing rear extension.