West Dublin residents are making a final appeal to local councillors before a vote on Monday that could determine the future of three contested sites near Lucan. Protesters say the proposed residential rezoning of land at St Edmundsbury, Finnstown Castle and Coldcut Road could threaten biodiversity, historic farmland and the wider Liffey Valley landscape.
Breaking News: Lucan protest ahead of rezoning vote
A demonstration took place in Lucan on Saturday as the Save St Edmundsbury Protest Committee called for the proposal to be rejected. The protest walk began at the main entrance to St Edmundsbury and ended at the village green.
The final decision is scheduled to be made by South Dublin County Council on Monday. Councillors have previously voted against changing the zoning of the lands, and campaigners are asking them to repeat that decision.
The St Edmundsbury site, located in the Liffey Valley near Lucan, is currently designated as “high amenity” because of its environmental and natural amenity value. The proposed changes would enable residential development across the three sites.
Why residents oppose the proposed rezoning
Campaigners argue that St Edmundsbury is an unusually important landscape, combining mature natural features with long-established agricultural land. They say development could damage habitats and reduce the area’s value as open space for future generations.
Helen Farrell, an Independent councillor on South Dublin County Council and a member of the protest committee, said the campaign was not intended to oppose housing generally. Her position is that new homes should be directed towards suitable locations, including vacant and derelict properties in established urban areas.
Residents have also raised concerns about building on fertile agricultural land during a period marked by pressure on food production and climate policy. Their preferred outcome is for the land to become part of a wider Liffey Valley park.
Key facts
- The final vote is due on Monday.
- The sites are at St Edmundsbury, Finnstown Castle and Coldcut Road.
- The three areas could accommodate more than 1,700 homes if rezoned.
- More than 1,600 submissions opposed the proposed rezoning of St Edmundsbury.
- South Dublin County Council previously rejected the zoning change.
Housing pressure versus environmental protection
The dispute reflects a wider challenge facing Ireland: how to increase housing supply without removing important landscapes or placing new development in unsuitable locations.
The council chief executive, Colm Ward, proposed rezoning the three sites. The proposal followed a direction from Minister for Housing James Browne last summer requiring local authorities to identify significant additional land for housing.
Together, the sites could provide capacity for more than 1,700 homes. That figure has made the lands relevant to the housing debate, particularly in west Dublin, where demand for homes remains high. However, the scale of potential development has also intensified concerns about infrastructure, biodiversity and the loss of agricultural land.
What the Monday decision could mean
Councillors will be asked to decide whether the proposed residential zoning should proceed. A rejection would preserve the existing high-amenity designation, while approval would open the way for future planning applications, subject to the normal planning process and any required environmental assessments.
The vote would not itself grant permission to build homes. Any development would still require detailed proposals, planning scrutiny and consideration of transport, drainage, utilities, public services and environmental impacts.
For residents, the decision is significant because it could establish whether the land remains primarily protected open space or becomes part of west Dublin’s future housing supply.
Background to the St Edmundsbury campaign
Residential rezoning in the area has been proposed several times over recent decades but was previously refused. The St Edmundsbury land is owned by businessmen John Magnier and JP McManus, adding public interest to the debate over its possible redevelopment.
The protest committee says its campaign is focused on the character and ecological importance of the site rather than opposition to new homes in principle. It wants housing policy to prioritise vacant urban buildings, derelict sites and locations that can support higher-density development without sacrificing high-value countryside.
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Frequently asked questions
When is the rezoning vote?
South Dublin County Council is scheduled to hold the final vote on Monday, October 19th, 2026.
Which sites are involved?
The proposal covers St Edmundsbury in the Liffey Valley near Lucan, Finnstown Castle between Lucan and Adamstown, and land at Coldcut Road south of the Liffey Valley shopping centre.
How many homes could the sites accommodate?
The three sites combined could accommodate more than 1,700 homes if their zoning is changed and future planning permissions are granted.
Does rezoning mean homes can be built immediately?
No. Rezoning would support residential development in principle, but separate planning applications and assessments would still be required.
What happens next?
The immediate next step is the council’s final vote. The outcome will determine whether the proposal advances or whether the existing zoning remains in place.
Whatever the result, the debate is likely to continue because it involves two urgent public priorities: Ireland’s need for more housing and the protection of ecologically important land. Residents and campaigners will be watching closely to see whether councillors maintain their previous position.
Conclusion
This Breaking News Ireland story places west Dublin’s housing needs alongside questions about biodiversity, farmland and long-term planning. The Monday vote will not decide every aspect of future development, but it will be an important test of how South Dublin balances housing targets with the protection of the Liffey Valley landscape.
