Core Refusal Reason
The proposed extension is excessive in scale, fails to be subordinate to the original dwelling, and lacks sufficient evidence regarding wastewater treatment compliance.
Decision Maker's Conclusion
- The proposed two-storey extension, with a floor area of 205m², is not subordinate in scale or design to the existing modest dwelling and would entirely subsume the original structure.
- The development fails to comply with Section 9.9 of the Roscommon County Development Plan 2014-2020, which requires extensions to be complementary and subordinate to the main building.
- The applicant failed to demonstrate that the existing domestic wastewater treatment system is structurally sound and capable of handling the increased loading in compliance with the 2021 EPA Code of Practice.
Cited Policies (CDP)
Section 9.9 - House Extensions (Urban and Rural)Roscommon County Development Plan 2014-2020Section 5.11.6County Roscommon Rural Design Guidelines
Decision Document Summary
Gabriel Mitchell sought permission for a 205m² two-storey extension and refurbishment of an existing single-storey dwelling of less than 60m² at Moore North, Ballydangan, Co. Roscommon. The Planning Authority determined that the scale of the extension was excessive, failing to remain subordinate to the original house as required by the County Development Plan. Additionally, significant concerns were raised regarding the adequacy of the existing septic tank system to handle the increased occupanc...SOURCE PDFOpen Original
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