Planning application
19 St Marys Avenue London N3 1SN
Works: Extension Loft or dormer Windows or glazing Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Single storey rear extension. Rear Patio. Roof extension including hip to gable and rear dormer window. Alterations to front elevation involving changes to fenestration and external material finishes
As published by the council, reference 26/0295/HSE
Application record
- Reference
- 26/0295/HSE
- Type
- Householder Application
- Status
- Approved subject to conditions
- Decision
- Granted As published: Approve subject to conditions
- Received
- 27 Jan 2026
- Validated
- 27 Jan 2026
- Decided
- 24 Mar 2026
- Ward
- Finchley Church End
- Decision by
- Delegated Decision
- Postcode
- N3 1SN
Timeline
Dates from the published record
-
27 Jan 2026
Received by Barnet
-
24 Mar 2026
Decision issued: Approve subject to conditions
-
10 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Iguana Architects Agent, an architecture practice registered in London
Active · incorporated 2017 · London
21 applications on PlanIndex · across 7 councils · 76% 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
28 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 24 March 2026, 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 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
-
23 St Marys Avenue London N3 1SN
77% historically approved · decision due ~7 Nov
Installation of new wooden fence
Awaiting decision Householder 5 docsSmall domestic -
19 Hendon Avenue London N3 1UJ
Extension of existing swimming pool and new pool house following demolition of existing pool house
Refused Lawful development Extension Demolition 17 docs -
19 Hendon Avenue London N3 1UJ
Demolition of existing pool house and erection of a new extended pool house with same pool size.
Refused Lawful development Demolition 19 docs -
19 Hendon Avenue London N3 1UJ
Extension of existing swimming pool and new pool house following demolition of existing pool house
Refused Lawful development Extension Demolition 17 docs -
19 Hendon Avenue London N3 1UJ
80% historically approved · decision due ~21 Nov
Single storey side extensions to both sides. Single storey rear extension. Roof extension with rear dormer windows, 14no. front and 2no. side facing rooflights following the demolition of chimneys
Awaiting decision Lawful development Extension Loft or dormer +2 23 docsSmall domestic -
19 Hendon Avenue London N3 1UJ
1 X Copper Beech - fell, grind stump to a minimum depth of 300mm below ground level and replace with a copper beech (Fagus sylvatica 'Purpurea') in same location, due to significant structural decay and high risk of failure. Standing in T44 of Order (amended description)
Granted Trees 9 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