Planning Permission Ireland

House design guide

What South Dublin wants your home to look like

South Dublin County Council wants homes and extensions to be high-quality, energy-efficient, and designed to adapt to a family's changing needs over time. In urban areas, the council promotes compact infill developments and living-over-the-shop arrangements, while in rural and high-amenity areas, new housing is strictly restricted to individuals with a proven local social or economic need and must blend unobtrusively into the landscape.

Accepted house types & forms

lifetime adaptable homesinfill housingsubdivided large housesfamily flatsreplacement rural dwellingsdomestic extensionsliving-over-the-shop units

What they want to see

Encouraged by the guide

  • Adaptable Residential Layouts(Page 235)

    Designing home layouts that can be easily extended or remodeled internally to accommodate the changing needs of occupants over their lifetime.

  • Home Working Space(Page 235)

    Providing adequate space within new housing units, including apartments, to comfortably allow residents to work from home.

  • Energy Efficiency and Solar Gain(Page 233, 246)

    Designing and positioning houses to take full advantage of natural solar heat gain and incorporating energy-saving and renewable energy measures.

  • Street Frontage and Natural Surveillance(Page 236)

    Designing developments to provide clear street frontage to maximize passive surveillance, enhancing safety and security for the neighborhood.

  • Living Over the Shop(Page 238)

    Converting and utilizing the upper floors of buildings in town, district, local, and village centers for residential use.

What gets refused

Discouraged by the guide

  • Intrusive Engineering on Sloped Sites(Page 237, 245)

    The use of disruptive engineered solutions like cut-and-fill platforms, high embankments, or retaining walls on steep or varying slopes.

  • Directly Opposing Windows and Balconies(Page 236)

    Placing above-ground windows and balconies directly opposite neighboring properties without sufficient separation distance to safeguard privacy.

  • Oversized Rural Valley Extensions(Page 243)

    Extending or altering habitable structures in high-amenity zones like Liffey Valley or Dodder Valley by more than 50% of the original building size.

  • Urban-Generated Rural Dwellings(Page 240)

    Building new homes in rural or high-amenity areas (such as the Dublin Mountains, Liffey Valley, and Dodder Valley) for applicants who do not have intrinsic local economic or social ties to the rural community.

  • Replacing Long-Abandoned Dwellings(Page 244)

    Constructing replacement homes where the original structure has been abandoned as a habitable dwelling for more than 5 years.

  • Ribbon and Haphazard Development(Page 245)

    Designs and sitings that create or worsen ribbon development or disorganized, haphazard housing patterns along rural roads.

Materials & finishes

  • Sustainably sourced building materials (Page 246)
  • Reused demolition and excavated materials integrated into the building design (Page 246)
  • Structural materials with low to zero embodied energy and carbon dioxide emissions (Page 246)

Roofs & form

  • Inconspicuous and compact dwelling forms, particularly in steep topography and areas of high visual amenity (Page 244)
  • Replacement rural dwellings must largely occupy the same footprint, scale, and location as the original building to be replaced (Page 244)
  • Habitable extensions in the Liffey Valley (HA-LV) and Dodder Valley (HA-DV) must not exceed 50% of the size of the original structure (Page 243)

Siting & landscape

  • Sited to minimize visual impact on the landscape, including views, prospects of natural beauty, and natural/built heritage features (Page 245)
  • Sited to complement the landscape's natural contours and natural drainage features, avoiding heavy terrain manipulation (Page 236, 245)
  • Private gardens should generally be enclosed within perimeter blocks behind the building line to ensure privacy and security (Page 236)
  • Sited away from areas at risk of flooding (Page 222, 230)
  • Retain and reinstate traditional roadside and field boundaries (Page 245)

Auto-generated summary of chapter 6 housingread the official source ↗. Last updated 22 June 2026.

Based on: South Dublin County Development Plan 2022-2028, Chapter 6: Housing, Pages 219-246.

For information only — not legal or planning advice. Always confirm requirements with South Dublin County Council and a qualified professional before relying on them.