Alterations to existing house to include a ground floor extension to rear at 3, Knocklyon Avenue
3, Knocklyon Avenue, Dublin 16
0.034 ha · On Site
Planning application SD21B/0649 to South Dublin County Council: Alterations to existing house to include a ground floor extension to rear & side; first floor extension to side, at 3, Knocklyon Avenue. Granted by the council on 6 April 2022. Work commenced on 20 August 2026.
Timeline
- Application lodged
- Further information received
- Council granted
- Work commenced
Key facts
Proposed development
Alterations to existing house to include a ground floor extension to rear & side; first floor extension to side, new roof to include attic conversion with dormer windows to front & rear and associated site works.
Planning status
A commencement notice has been lodged: works are under way or about to start.
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Nearby applications
Other applications on the South Dublin register close to this address.
- SD24A/00345, Knocklyon Avenue, Knocklyon, Dublin 16Granted
Sub-division of the existing dwelling into 2 separate dwellings & for permission for a single storey ground floor extension to the side & new roof lights…
- SD25B/0433W5a, Knocklyon Ave, Knocklyon, Dublin 16On Site
alterations to previously approved planning application Reg Ref No. SD24A/0034. The proposed alterations affect House B (5A Knocklyon Ave) of the previous…
- SD25B/0062W9, Knocklyon Avenue, Templeogue, Dublin 16, D16X4COGranted
Following Timber fence constructed inside existing northern boundary wall to rear of existing house.
- SD26B/0032W2, Knocklyon Avenue, Knocklyon, Dublin 16, D16 H3K8On Site
(i) Demolition of single storey lean-to shed and removal of existing boundary wall to the front…
- SD25A/005023, Delaford Lawn, Knocklyon, Dublin 16Granted
Detached Two storey Three bedroom house with shared entrance to side.
- SD26B/0056W15, Knocklyon Park, Templeogue, Dublin 16, D16 N1W8Closed
Modifications to a previously granted permission (SD25B/0061W), to include construction of a dormer to the rear pitch of the roof and associated revisions…
Related
About this page: the facts above come from the statutory public planning register kept by South Dublin County Council and are refreshed weekly (last updated 28 Sept 2026). Applicant names and contact details are not shown. Status labels are PlanningLeads' plain-language reading of the register status and the "Use" label is classified by AI from the public description (see how we use AI); neither is legal advice and the council's file is the record. How we handle this data: privacy notice.
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