Residential development at 18, Northumberland Avenue
18, Northumberland Avenue, Dun Laoghaire, Dublin, A96K793
up to 2 storeys · 0.049 ha · Granted · permission to Sept 2029 (estimate)
Planning application D24A/0551/WEB to Dun Laoghaire Rathdown County Council at 18, Northumberland Avenue, Dun Laoghaire. Granted by the council on 11 September 2024. The permission normally runs to September 2029 (an estimate: the grant plus five years).
Timeline
- Application lodged
- Council granted
- Permission normally ends (estimate)
The end date is an estimate: the grant plus five years, the normal life of a permission. An extension or a commencement changes it.
Key facts
Proposed development
Works include i) the removal of an existing flat roof extension at basement level, ii) removal of existing two storey rear annex structure, iii) construction of a flat roof replacement basement extension with 1 no. roof light, iv) construction of a new rear extension with 1 no. roof light at upper ground floor level, v) construction of a replacement bathroom extension at first floor level, vi) internal modifications and general upgrades, vii) all associated site, landscaping and services works.
Planning status
Permission was granted on 11 Sept 2024. The four-week appeal period has passed with no appeal recorded, so the permission is final. Works can start once a commencement notice is lodged; the permission normally runs to Sept 2029 (estimate).
Is this your application?
Say it is yours and you will see which building firms and trades have asked to work on it, with the contact details they chose to leave. It is free and takes an email address. Nothing is shared with anyone unless you choose to contact them.
Nearby applications
Other applications on the Dun Laoghaire Rathdown register close to this address.
- D26A/0155/WEB18, Northumberland Avenue, Dun Laoghaire, Dublin, A96K793Granted
Alterations to the proposed development permitted under Register Reference No.
- D25A/0943/WEB15, Northumberland Avenue, Dun Laoghaire, Co. Dublin, A96EH42Granted
Change of use from a multi-occupancy building conta
- D26B/0256/WEB34, Northumberland Ave, Dun Laoghaire, A96Y7H1On Site
Alterations to the previously granted permission D23B/0521 with a reduced footprint to the two storey extension to rear and revised elevational treatments…
- D25A/0110/WEB31, Northumberland Avenue, Dun Laoghaire, Co. Dublin, A96EY19Granted
Moving and widening of the existing vehicul
- D26B/0014/WEB32, Mulgrave Street, Dun Laoghaire, Co. Dublin, A96R230Granted
Demolishing the existing two-storey rear extens
- D24A/071559, Mulgrave Street, Dun Laoghaire, Dublin, A96XK33Granted
Change 59 Mulgrave Street, Dun Laoghaire from Commercial to
Related
About this page: the facts above come from the statutory public planning register kept by Dun Laoghaire Rathdown County Council and are refreshed weekly (last updated 21 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.
Remove my application from this page
If this is your application and you would rather it did not appear here, tell us and we will take the page down. No account, no questions asked: we only email you a link to confirm it was you. This is your right to object under GDPR Article 21.