SD22A/0266

Retention of existing building Al with new direct link to existing family home providing extra living accommodation; Retention and completion of existing building B to rear North Boundary for use as private family Gym and general store; Retention of single storey shed E in side garden South for storage of equipment used by applicant in relation to his work; Retention and completion of building F located on North side of Land to accommodate the storage of Vintage Cars owned by applicant together with required storage of associated materials; Installation of new on-site treatment system to service proposed development; Completion of all ancillary works in relation to proposed development.

Refused

Core Refusal Reason

The application was refused due to significant unresolved unauthorised development on-site, potential adverse hydrological impacts on the Glenasmole Valley SAC, and failure to demonstrate compliance with rural housing and environmental protection policies.

Decision Maker's Conclusion

  • The existence of major unauthorised development, including a separate residential dwelling (Chalet D) and site subdivision, prevents the regularisation of the subject development.
  • Insufficient hydrological data was provided to screen out significant effects on the Glenasmole Valley SAC, particularly regarding the impact of chemical runoff on petrifying springs.
  • The proposal failed to meet the criteria of Policy H23 Objective 1 and lacked essential technical details regarding SuDS, landscape design, visual impact, and wastewater management.

Cited Policies (CDP)

Policy H23 Objective 1Policy H27 Objective 1South Dublin County Development Plan 2022-2028

Decision Document Summary

The applicant sought the retention of an existing building (A1) with a new link to the primary family home at Glenside House, Bohernabreena, Dublin 24. The Planning Authority refused the application because the site contains significant unauthorised development, including a separate chalet and access road, which must be regularised before further permissions are granted. Furthermore, the development's proximity to the Glenasmole Valley SAC raised critical concerns regarding groundwater contamina...
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