Planning application
144 Hendon Lane London N3 3PS
Works: Extension 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
Two storey rear extension alterations to the existing raised patio area and access steps. Single storey front infill extension
As published by the council, reference 26/1742/HSE
Application record
- Reference
- 26/1742/HSE
- Type
- Householder Application
- Status
- Approved subject to conditions
- Decision
- Granted As published: Approve subject to conditions
- Received
- 11 May 2026
- Validated
- 11 May 2026
- Decided
- 6 Jul 2026
- Ward
- Finchley Church End
- Decision by
- Delegated Decision
- Postcode
- N3 3PS
Site history
Applications at this address on the Barnet register
This site has had 2 applications since 2026: 2 approved, 0 refused.
-
26/1000/192 Granted
144 Hendon Lane London N3 3PS
Roof extension involving partial hip to gable, rear dormer windows, 3no. front facing rooflights and new side gable window
Timeline
Dates from the published record
-
11 May 2026
Received by Barnet
-
6 Jul 2026
Decision issued: Approve subject to conditions
-
25 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
HK Architects Agent, an architecture practice registered in Barnet
Active · incorporated 2015 · Barnet
21 applications on PlanIndex · across 5 councils · 75% 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
8 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 this grant of permission means
Barnet granted permission on 6 July 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
-
144 Hendon Lane London N3 3PS
Roof extension involving partial hip to gable, rear dormer windows, 3no. front facing rooflights and new side gable window
Granted Lawful development Extension Loft or dormer +1 5 docs -
148 Hendon Lane London N3 3PS
78% historically approved · decision due ~23 Nov
Submission of details of condition 8 (Levels) 9 (Tree Protection) pursuant to planning permission 26/2048/HSE dated 28/07/2026
Awaiting decision Trees -
148 Hendon Lane London N3 3PS
Roof extension with 3no. rear dormer windows and 2no. front facing rooflights. Single storey side and rear extension with 2no. lantern rooflights. Two storey side extension following demolition of existing chimney. Alterations to external levels. New rear Patio. Front infill extension to create wider garage. Alterations to roof of front porch and garage. Creation of a first floor rear Juliette balcony. (Amended Description)
Granted Householder Extension Loft or dormer +2 12 docsSmall domestic -
22 Waverley Grove London N3 3PX
Single storey side/rear extension following demolition of the existing conservatory. Alteration to the existing patio area. Conversion of the existing garage into habitable room, insertion of window to replace the garage door
Granted Householder Extension Demolition +1 11 docsSmall domestic -
22 Crooked Usage London N3 3HB
1 x Monterey Cypress (applicants ref. T1) - Fell to ground level. Standing in T17 of Tree Preservation.
Granted Trees 4 docs -
31 Allandale Avenue London N3 3PY
78% historically approved · decision due ~23 Sep
Submission of details of condition 7 (Levels) 8 (Excavation for services) 9 (Tree Protection & Method Statement) 10 (Details of Foundations) pursuant to planning permission 26/1837/HSE dated 07/07/2026
Decided Trees
Other householder applications
In Barnet
-
26/3963/HSE Awaiting decision
97 Morphou Road London NW7 1BG
Alteration and extension to roof including insertion 2no. side facing rooflights
-
26/3953/HSE Awaiting decision
51 Bedford Avenue Barnet EN5 2ER
Single storey rear extension with flat roof, 1no. rooflight and new access steps following demolition of the existing conservatory. Removal of the rear chimney stack. Changes to ground floor north side fenestration
-
26/3947/HSE Awaiting decision
20 Fallow Court Avenue London N12 0EB
Single storey side and rear extension
-
26/3946/HSE Awaiting decision
21 Selvage Lane London NW7 3SS
Single storey front porch extension with pitched roof
-
26/3950/HSE Awaiting decision
113 Walmington Fold London N12 7LH
Single storey rear extension with pitched gable roof. New Pergola. Installation of Air Source Heat Pump (ASHP)