SD25A/0118

The development shall consist of a two storey end of terrace dwelling to the side of existing house plus alteration to the internal ground floor plus modifications to the front elevation with the relocation of the front door and one number window from the side elevation to the front elevation, increasing a section of existing side and rear boundary walls to 1.8 m in height plus widening of existing vehicular entrance for the purpose of creating a shared vehicular entrance and all associated site works

Refused

Core Refusal Reason

The proposal was refused due to non-compliance with mandatory 3-metre setbacks from public water infrastructure, insufficient Sustainable Drainage Systems (SuDS) details, and potential adverse impacts on the residential and visual amenity of neighboring properties.

Decision Maker's Conclusion

  • The development fails to maintain the required 3-metre setback from existing public surface water and watermain infrastructure, posing a risk to public health and the integrity of public services.
  • The applicant failed to demonstrate that the two-storey dwelling would not result in undue overshadowing or overbearing visual impacts on the adjoining properties at No. 56 and No. 58 Allenton Drive.
  • The proposal lacks sufficient detail regarding Sustainable Drainage Systems (SuDS) and fails to adequately address pedestrian safety concerns and vehicular sightlines at the shared access point.

Cited Policies (CDP)

IE3 Objective 2IE2 Objective 3GI4 Objective 1South Dublin County Development Plan 2022-2028

Decision Document Summary

The proposal sought permission for a two-storey end-of-terrace dwelling at 58 Allenton Drive, Ballycragh, Tallaght. The Planning Authority refused the application primarily because the building's footprint encroached upon the 3-metre exclusion zone for a 300mm surface water sewer, violating the Greater Dublin Strategic Drainage Study and County Development Plan objectives. Furthermore, the applicant failed to provide adequate shadow analysis or design revisions to mitigate overbearing impacts on...
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