Planning application
18 Avenue Road London N12 8PY
Works: Extension Loft or dormer Demolition 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 green roof and 1no. rooflight following demolition of the existing conservatory
As published by the council, reference 25/4883/HSE
Application record
- Reference
- 25/4883/HSE
- Type
- Householder Application
- Status
- Pending Consideration
- Received
- 5 Dec 2025
- Validated
- 5 Dec 2025
- Ward
- Woodhouse
- Postcode
- N12 8PY
Timeline
Dates from the published record
-
5 Dec 2025
Received by Barnet
-
10 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 30 January 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 46 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
SIAW LTD Agent
15 applications on PlanIndex · across 5 councils · 40% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
7 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.
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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 householder applications in a median of 56 days. More in our guide to how long planning decisions take.
About householder applications
Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
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Catherine Lodge 36 - 42 Woodside Park Road London N12 8RP
Use as a Residential Family Assessment Centre for 14 families (Class C2) at no. 40 - 42 and a Residential Family Assessment Centre / Semi-Independent Service for 12 families (Class C2) at no. 36 - 38
Granted Lawful development 7 docs -
North Finchley Telephone Exchange 885 High Road London N12 8QA
78% historically approved · decision due ~15 Oct
Removal of 3 x Nokia AEQC antenna at 22.6m from the stub-tower upon the rooftop of the BT Telephone Exchange. Installation of 3 x Nokia AVHQB antenna at 22.6m utilising existing steelwork upon the stub-tower on the exchange rooftop. Ancillary works will see the re-use of 3 x existing A13451R0V06 antenna at 22.6m and 3 x AZNC RRUs at 22m on the stub-tower. Removal of 6 x RRUs at 22m, 3 x C2 Combiners and 6 x Feeder cables and replacement with 6 x new NOKIA RRUs at 22m, 3 x Multicore fibre cables, 3 x DC Cables, 3 x BoB Boxes, the re-use of 3 x existing multicore fibre cables and refreshment works within the rooftop equipment cabinets.
Awaiting decision -
17 Woodside Park Road London N12 8RT
63% historically approved · decision due ~7 Sep
Single storey rear extension with new patio area
Decided Full applications ExtensionSmall domestic -
830 High Road London N12 9RA
63% historically approved · decision due ~25 Mar
Conversion of the existing dwelling into 3no. self-contained flats including first floor side/rear infill extension and lightwell. Associated cycle storage
Awaiting decision Full applications New dwelling Extension 7 docsDomestic -
829 High Road London N12 8PR
Refurbishment of the existing ground floor commercial unit (Use Class E(c) estate agents), including rear courtyard infill extension and new rooflight. Conversion of existing upper flat into 3no. self-contained flats including two storey rear extension at first and second floor levels, roof extension with rear dormer window and 3no. rooflights to front roofslope and new communal staircase
Withdrawn Full applications New dwelling Extension +2 9 docs -
35 Woodside Park Road London N12 8RT
Use as 5no. self-contained flats
Refused Lawful development New dwelling 11 docs
Other householder applications
In Barnet
-
26/3853/HSE Awaiting decision
30 Goldsmith Avenue London NW9 7HB
Single storey rear extension following demolition of the existing extension
-
26/3856/HSE Awaiting decision
229 Hale Drive London NW7 3EH
Single storey rear extension
-
26/3827/HSE Awaiting decision
43 Hermitage Lane London NW2 2HE
Single storey rear extension with 3no. rooflights following demolition of the existing conservatory. Replacement front bay window and entrance porch. First floor rear juliette balcony. Changes to fenestration including new window openings and enlarged front rooflight
-
26/3833/HSE Awaiting decision
47 Holne Chase London N2 0QG
Single storey rear extension. Replacement of single glazed windows with double glazing. Alterations to side/rear fenestration. Alterations and replacement of existing rear dormer window addition of 2no. side dormer windows and 3no. rooflights. Installation of cameras and wall lights. Replacement of the front entrance and garage doors, installation of timber side garden gates
-
26/3841/HSE Awaiting decision
Manor House West Heath Close London NW3 7NJ
New metal framed pergola to upper ground floor rear terrace