D22A/1004

The proposed development will consist of A) construction of a single storey exte

Split decision

Core Reason for the Refused Part

While the Planning Authority initially refused the extension elements due to encroachment on a 6m wayleave for a public surface water sewer, the Inspector recommended granting permission on the basis that the sewer had already been diverted, the works are minor in scale, and access for maintenance remains feasible.

Decision Maker's Conclusion

  • The first-floor extension is located entirely above the existing ground-floor structure and will not create additional impediments to sewer maintenance beyond the current footprint.
  • The proposed 2.49sqm ground-floor front extension is minor in scale and, given the sewer has been recently upgraded and diverted, it will not seriously impede the local authority's ability to access the line.
  • The development is consistent with the residential zoning and, subject to conditions regarding the protection of the sewer during construction, will not be prejudicial to public health or increase flood risk.

Cited Policies (CDP)

Section 12.3.7.1 (Extensions to Dwellings)Appendix 7: Section 7.1.1 (Sustainable Drainage System Measures)Zoning Objective A (Residential)Flood Zone B

Decision Document Summary

The applicants sought retention permission for a garage conversion and chimney removal, alongside planning permission for a first-floor side extension and a small ground-floor front extension at 22 Acorn Road, Dundrum. The Planning Authority issued a split decision, refusing the extensions due to the presence of a 225mm public surface water sewer and the associated 6m wayleave requirement under the County Development Plan. The Inspector noted that the sewer had already been diverted by the appli...
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