Core Refusal Reason
The development consists of a detached habitable unit that is entirely separate from the main dwelling, contravening Development Plan policies for ancillary accommodation and resulting in a substandard residential unit that sets an undesirable precedent.
Decision Maker's Conclusion
- The structure functions as a fully independent dwelling with its own address and Eircode, failing to meet the requirements for a subsidiary or interlinked family extension.
- The physical layout is substandard due to its poor orientation toward the parent house and excessive proximity to site boundaries, which restricts external circulation.
- The application lacks critical technical specifications regarding construction materials and design, providing no basis for an assessment of the structure's long-term sustainability or life expectancy.
Cited Policies (CDP)
Section 12.3.7.3 (Family member/granny flat extensions)Section 12.3.7.4 (Detached habitable rooms)Section 12.3.7.7 (Infill development)Section 12.3.7.1 (Extensions/Driveway standards)A zone objective (Residential development/amenity)
Decision Document Summary
This report assesses an appeal against the refusal of retention permission for a 28.8 sqm single-storey timber unit used for habitable purposes at 8 Goatstown Close, Dublin 14. The site is a mature end-of-terrace property featuring an unusually wide side garden where the unit was constructed. While the appellant argued the unit helps alleviate the housing crisis, the Planning Authority and Inspector found that it operates as a separate residence (No. 8A) rather than an ancillary 'granny flat' or...SOURCE PDFOpen Original
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