Core Refusal Reason
The proposal fails to demonstrate adequate separation from water infrastructure and does not meet design standards for dormer extensions regarding scale, setback, and finishes.
Decision Maker's Conclusion
- The development fails to provide the required 3m separation distance from an existing 100mm watermain, which is considered prejudicial to public health.
- The proposed dormer attic extension is inappropriately scaled and lacks the necessary setbacks from the roof ridge and boundary walls to be considered acceptable.
- The proposed external finishes for the dormer structure are not specified or are incompatible with the existing dwelling, and the overall development would set an undesirable precedent.
Cited Policies (CDP)
Decision Document Summary
The application sought permission for a single-storey rear extension and a new dormer attic structure at 21 Riverwood Heath, Carpenterstown. The Planning Authority refused the development because the applicant failed to prove that the construction would maintain a safe 3m distance from Irish Water assets. Furthermore, the design of the dormer was deemed excessive in width and height, lacked proper boundary setbacks, and failed to provide compatible external finishes, making it contrary to the pr...SOURCE PDFOpen Original
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