Infrastructure · Co. Cork

Castlemagner Co Cork

Granted 2 Dec 2025 (final grant issued 16 Jan 2026)

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Key facts

  • Planning application 25/5211 at Castlemagner Co Cork: New Wastewater Treatment Plant to replace the existing public…
  • It was received by Cork County Council on 24 Jun 2025.
  • Status: Granted 2 Dec 2025 (final grant issued 16 Jan 2026).
  • Work started on site on 17 Aug 2026, according to the commencement notice. It does not say which contractors or suppliers are appointed.

Source: the Cork County Council planning register, checked 2 Jun 2026. Search the council's register

Planning applications in Co. Cork

What and where

New Wastewater Treatment Plant to replace the existing public…

Permission for development which consists of the construction of a new Wastewater Treatment Plant (WwTP) to replace the existing public and private WwTP’s currently servicing the agglomeration. The development will consist of the following: 1) Inlet works, including: 2 no. gravity inlets from the existing public WwTP & the private WwTP, full flow to treatment pumping station, inlets screen. 2) Primary treatment, including: 2 no. primary settlement tanks, 2 no. rotating biological contactors. 3) Secondary treatment, including; 2 no. Humus Tanks. 4) Discharge works, including; final effluent collection chamber, final discharge manhole, final effluent gravity pipeline and headwall along the Lisduggan North Stream. 5) Sludge treatment works, including; primary sludge pumping station, 1 no. sludge holding tank, 3 no. sludge drying reed beds, mixed liquor returns pumping station. 6) 1 no. stormwater storage tank and pumping station. 7) Construction of a new solar farm to provide a source of renewable energy to partly supply the WwTP. 8) 1 no. control and administration building. 9) Ancillary site works, including: upgrade of the existing entrance and access road from the L1042 roadway and construction of paved site roadways including associated parking. Installation of instrumentation, monitoring equipment and controls in accordance with Uisce Éireann’s technical standards. General groundworks, fencing, landscaping, ducting, pipework, manholes/chambers and drainage works including for filter drains, surface water pipeline and a swale. A Natura Impact Statement (NIS) will be submitted to the Planning Authority with the application.

Location
Co. Cork Map
Planning reference
25/5211

Numbers and dates

Project type
Infrastructure
Received
24 Jun 2025
Decision to grant
2 Dec 2025
Final grant
16 Jan 2026
Site start
17 Aug 2026

Timeline

  1. Application received
  2. Decision to grant
  3. Final grant issued
  4. Site start

Outlook

What happens next

Work started on site on 17 Aug 2026, according to the commencement notice. It does not say which contractors or suppliers are appointed. View the site start

Work packages named so far

  • Roads and site development worksNamed in the application description
  • Services and drainageNamed in the application description

An outlook from the planning record, not a tender or a confirmed start date.

Documents and evidence

Check the record

  • Council planning registerSearch planning.agileapplications.ie for reference 25/5211.Search the register

How we know this

From the Cork County Council planning register, checked 2 Jun 2026. We link to the council's own file so you can check the official record before you act.

Site starts

Commencement notices for this permission

  1. 17 Aug 2026Work started · Construction of a control building at Castelmagner Waste water treatment plant, Co. CorkView the site start

A commencement notice tells the council that building work is about to start. A completion certificate is filed when it is finished.

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