Many domestic rooftop solar PV systems in Ireland may qualify as exempted development, but conditions and size limits apply. Additional restrictions can affect homes in architectural conservation areas, protected structures or other sensitive locations, so exemption should not be assumed. Check with your local authority’s planning section and ask a suitably qualified solar installer to assess the proposed system before work begins; permission may be needed if the conditions are not met. Planning permission and SEAI grant eligibility are separate matters, and any grant outcome depends on SEAI’s current rules and your individual circumstances.