D21B/0047

Permission is sougt for attic conversion including dormer window

Split decision

Core Reason for the Refused Part

The proposed rear dormer extension was deemed visually obtrusive, out of character with the existing roofscape, and contrary to specific development plan standards for residential extensions.

Decision Maker's Conclusion

  • The size, design, and layout of the rear dormer are out of character with the existing pattern of development and would be visually incongruous in the roofscape.
  • Granting permission for the rear extension would set an undesirable precedent for similar developments that negatively impact the visual amenity of the area.
  • The proposal would seriously injure the residential amenities and depreciate the value of property in the vicinity, failing to comply with proper planning and sustainable development.

Cited Policies (CDP)

Section 8.2.3.4 (Additional Accommodation in Existing Built-up Areas) (i) (Extensions to Dwellings)

Decision Document Summary

The proposal sought permission for an attic conversion including dormer windows at 12 Belarmine Lawns, Stepaside. The planning authority issued a split decision, granting permission for the front dormer and roof lights but refusing the rear dormer extension. The refusal was primarily due to the rear element's scale and design, which was considered visually obtrusive and in breach of Section 8.2.3.4 of the Dún Laoghaire Rathdown County Development Plan 2016-2022 regarding extensions in built-up a...
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