New dwelling house and garage with septic system

Leona Crean and John Brennan have lodged a planning application with Mayo County Council to erect a new dwelling house and a domestic garage on a site in Ardrass, Attymass, just outside Ballina. The proposal, reference 2660373, was received on 12 May 2026 and is currently listed as a new application. The council’s decision is scheduled for 6 July 2026. The development will incorporate a septic treatment system, along with all associated site works required to service the new home.

The application details that the site will host a single‑storey dwelling and a separate garage, both designed to meet local planning and environmental standards. The inclusion of an effluent treatment system is a key element, ensuring that wastewater from the property is managed in line with County Mayo’s regulations on rural sewage treatment. The council will assess the proposal against the county’s planning policy, particularly the provisions relating to the provision of on‑site wastewater treatment facilities and the protection of local watercourses.

Attymass is a rural area within the Ballina electoral division, and the proposed site sits on land that has previously been used for agricultural purposes. The applicants have indicated that the new house will provide a modern living environment while the garage will offer storage and workshop space. The septic system is expected to be a standard treatment unit, designed to treat domestic effluent before it is discharged into the surrounding environment. The council will examine the technical specifications of the system, the layout of the site, and the potential impact on neighbouring properties and natural resources.

This application is part of a broader pattern of recent planning submissions in the Ballina area. In the past month, the council has received several other proposals that involve the construction of new dwellings and the installation of wastewater treatment systems. For example, a new dwelling house and domestic garage with an effluent treatment system was submitted for a site at Foghill Upper Carrowmore in Lacken. Another application concerns the construction of a dwelling house at Tullaghanbawn, Geesala, also near Ballina. In addition, the council has approved a change of use for a former Garda station at Bellacorrick, converting it into a community centre and tourist hostel, and a conversion of a vacant school building at Carha Bonniconlon into a dwelling house. A single‑storey extension to the rear of an existing semi‑habitable house at Keerg was also approved, demonstrating the council’s willingness to accommodate a range of residential developments that incorporate modern waste treatment solutions.

The inclusion of septic treatment systems in these projects reflects a growing emphasis on sustainable water management in rural County Mayo. The council’s planning policy requires that any on‑site wastewater treatment system must be designed to meet the specific needs of the property and to minimise any adverse effects on the local environment. In the case of the Ardrass, Attymass proposal, the applicants have provided a detailed site plan that shows the location of the septic tank, the treatment chamber, and the discharge point, all of which are intended to comply with the Environmental Protection Agency’s guidelines. The council will also consider the potential impact on groundwater quality, as well as the visual and noise impact of the new structures on the surrounding landscape.

The decision process will involve a review of the technical aspects of the septic system, the suitability of the site for a new dwelling, and the overall compatibility of the development with the local planning scheme. The council will also take into account any objections that may be raised by neighbouring residents or environmental groups. If approved, the developers will be required to obtain a licence for the effluent treatment system and to comply with any conditions imposed by the council, such as maintenance schedules and monitoring of the system’s performance.

The application for the new house and garage at Ardrass, Attymass, is therefore a significant addition to the ongoing development activity in the Ballina area. It highlights the council’s focus on ensuring that new residential projects incorporate appropriate wastewater treatment solutions, thereby protecting the local environment while meeting the housing needs of the community. The outcome of the application will be announced on 6 July 2026, after which the developers will proceed with the necessary construction and installation works.

For more details, see the Mayo County Council planning file and localnews.ie.

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