Planning Register
Dún Laoghaire-Rathdown County Council · LRD23A/0505 · Permission

The Sentinel, Block C at the former Allegro Site, Blackthorn Drive, Sandyford Business Estate, Sandyford, Dublin 18.

Data updated 12 Sept 2026 · register lag up to 7 days · sources & freshness

Council received 27 Jul 2023We first saw it 11 Sept 2026, 15:18 (1143 days after receipt — sources refresh weekly)

LRD23A/0505 is a planning application for permission at The Sentinel, Block C at the former Allegro Site, Blackthorn Drive, Sandyford Business Estate, Sandyford, Dublin 18., received by Dún Laoghaire-Rathdown County Council on 27 Jul 2023 and first seen by Planning Register on 11 Sept 2026. The application describes: The development will comprise of the completion of the Sentinel Building to prov… The council granted permission on 19 Sept 2023. The five-week observation window closed on 31 Aug 2023. An Coimisiún Pleanála decided appeal 318255 on 23 Jan 2024 (grant conditions). A commencement notice (CN0145035DR) was lodged on 21 Jul 2026, so works have started on site. The site is zoned M5 — mixed use — outer core under the Dún Laoghaire-Rathdown County Council development plan. Within 500 m there are 102 other decided applications in the last five years and 10 appeals.

Appeal window closes 17 Oct 2023 closed 1061 days ago
4 weeks from the council's decision (19 Sept 2023) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer)
Council registerSite report

Proposal

The development will comprise of the completion of the Sentinel Building to prov

The description is truncated at source (80 characters in the national feed). The full text is on the council register.

Status
Final Grant
Decision
Grant permission on 19 Sept 2023
Final grant
2 Feb 2024
Permission expires
1 Feb 2027
Site (from polygon)
1.23 ha
Location precision
site (coords_polygon)

Timeline

  • 27 Jul 2023
    New application
    Observation window closed 31 Aug 2023
  • 19 Sept 2023
    Decision
    Appeal window closed 17 Oct 2023
  • 16 Oct 2023
    Appeal lodged

Around this site this application first, then everything within 500 m

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Appeal

ACP 318255 · Appeal - LRD · decided · Granted with conditions 23 Jan 2024
received by the Commission 16 Oct 2023 · inspector's report · board order

Commencement

  • Commencement notice CN0145035DR
    21 Jul 2026Blackthorn Avenue, Dublinmatched by spatial
  • Seven day notice SN0011663DR
    13 Dec 2024The Sentinel at the former Allegro Site, Blackthorn Drive, Sandyford Business Park, Sandyford, Dublin 18, Dún Laoghaire-Rathdown, D18 F4AEmatched by ref_exact

Zoning at the site

M5 — Mixed use — outer core

Objective MIC: MIC To consolidate and complete the development of the mixed use inner core to enhance and reinforce sustainable development.

A mix of uses complementing a town centre, with less retail and residential than the core itself.

M2 — Major town centre

Objective MIC: MIC To consolidate and complete the development of the mixed use inner core to enhance and reinforce sustainable development.

The main town centre — retail, offices, civic uses, apartments.

Designations within 250 m

OPW flood extent nearby — flag only (licence); floodinfo.ie.

  • Radon risk area · 4
    About 1 in 10 homes in this area is likely to have high radon levels; About 1 in 20 homes in this area is likely to have high radon levels; About 1 in 5 homes in this area is likely to have high radon levels

Provenance

Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 15:18 (store id 37205). Deadlines were computed by the store from the received / decided dates under the Planning and Development Act 2000 and are recorded as events, not recomputed here. Council register: https://planning.agileapplications.ie/dunlaoghaire/application-details/?ref=LRD23A/0505.

Source: npad · fetched 11 Sept 2026, 15:18
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npadCC-BY-4.011 Sept 2026, 15:18open