Planning permission and temporary planning permission
Seafort Lodge, & Glenalia Castledawson Avenue & parts of Blackrock hospital & Clinic main campus Booterstown, Co Dublin
up to 2 storeys · 0.281 ha · Appeal withdrawn, August 2026 · permission to Jun 2031 (estimate)
Planning application D25A/0939/WEB to Dun Laoghaire Rathdown County Council: Planning permission and temporary planning permission for development at this site of c.0.2806 ha, at Seafort Lodge, Glenalia Castledawson Avenue & parts of Blackrock. Granted by the council on 11 June 2026; the appeal to An Coimisiún Pleanála was withdrawn on 6 August 2026. The permission normally runs to June 2031 (an estimate: the grant plus five years).
Timeline
- Application lodged
- Further information requested
- Further information received
- Council granted
- Appealed to An Coimisiún Pleanála
- Appeal withdrawn
- 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
Planning permission and temporary planning permission for development at this site of c.0.2806 ha. The site is bounded by Rock Road to the north, Castledawson Avenue to the west and Blackrock Clinic and Hospital to the south and east. The proposed development will represent the next phase of the Masterplan for the redevelopment of Blackrock Clinic and will comprise the following: • Demolition of 'Glenalla', 'Seafort Lodge' and associated outbuildings and temporary buildings (c. 888sqm in total). • Provision of 3 no. two-storey, temporary (for 10 years) hospital buildings (c. 2,806sqm in total), to accommodate existing clinical and support services and personnel relocated from 'St. Catherines' within the campus new access from Blackrock Clinic and modification to the existing vehicular access from Seafort Lodge to Castledawson Avenue to enable egress for service vehicles from Blackrock clinic and hospital. • All associated works including provision of an LV Electrical room, loading bay and car parking. • Minor amendments to granted permission D21A/0627 to accommodate these works.
Planning status
The appeal to An Coimisiún Pleanála was withdrawn on 6 Aug 2026, so the council's decision stands.
Appeal PL-501665-DR-26 on the An Coimisiún Pleanála website ↗
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Nearby applications
Other applications on the Dun Laoghaire Rathdown register close to this address.
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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.
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