SD21B/0188

Two storey rear extension; conversion of attic into habitable rooms; 3 new dormer roofs to side elevations; 1 new dormer roof to front elevation; alterations to roof pitch; alterations to front elevation; 7 new roof windows and widen driveway entrance.

Refused

Core Refusal Reason

The Inspector recommended granting permission for the development, concluding that the amended proposal submitted with the appeal is acceptable in terms of scale, design, and use, and would not seriously injure the amenities of the area or adjoining properties.

Decision Maker's Conclusion

  • The amended design submitted with the appeal provides a more successful solution by reducing the overall height, depth, and massing of the extension.
  • The alterations to the front elevation and the replacement of dormer windows with rooflights on the eastern elevation significantly improve the proposal's integration with the surrounding residential context.
  • Impacts on adjoining properties, specifically No. 48 Dangan Park, are sufficiently mitigated through the revised building line and the requirement for obscure glazing on specific windows.

Cited Policies (CDP)

South Dublin County Development Plan 2016(H) Policy 18H18 Objective 1Section 11.3.3 - ExtensionsSouth Dublin County Council House Extension Design Guide (2010)

Decision Document Summary

The case involves a first-party appeal against South Dublin County Council's decision to refuse permission for a two-storey rear extension and attic conversion at 47 Dangan Park, a single-storey dwelling. The Planning Authority originally cited concerns regarding excessive massing, overshadowing, and visual incongruity. During the appeal process, the applicant submitted an alternative design that reduced the extension's depth by 1.5 metres, lowered the roof pitch, and omitted several dormer wind...
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