21454

Permission to construct an extension to existing dwelling house to incorporate granny flat element, and all ancillary site development works at

Refused

Core Refusal Reason

Failure to substantiate the necessity for the granny flat and overdevelopment of a confined site resulting in the loss of substantial private open space.

Decision Maker's Conclusion

  • The applicant failed to provide independent documentation to substantiate the necessity for the granny flat development as required by Section 9.10 of the Roscommon County Development Plan 2014-2020.
  • The proposed extension constitutes overdevelopment of a relatively confined site, resulting in the loss of a substantial area of the rear garden and inadequate private open space provision.
  • The proximity of the proposed structure to the southern and eastern site boundaries would impede future maintenance and repeats density concerns previously identified in the site's planning history.

Cited Policies (CDP)

Section 9.9Section 9.10

Decision Document Summary

The proposal sought permission for a 40m² flat-roof extension to the rear of an existing dwelling at 42 Woodview Court, Roscommon Town, to function as a granny flat. Although the site is located in a serviced urban area zoned 'Existing Residential', the application was refused because the applicant did not provide the required justification for the ancillary unit. Additionally, the planning authority concluded that the development would lead to overdevelopment of a restricted site, significantly...
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