Housing adaptation grants do not come within the remit of my Department and are a matter for the Department of Housing, Local Government and Heritage.
I am informed by that Department that it provides funding to local authorities for the Housing Adaptation Grant Scheme for Older People and People with a Disability in private houses. For the purposes of the grant, household income is calculated as the annual gross income of the registered property owner together with all household members aged 18 or over, or aged 23 or over if in full-time education, in the previous tax year. It is important to note that the individual mentioned in the details supplied may benefit from certain income disregards which apply, in calculating household income for eligibility purposes.
I would encourage the applicant to engage with their local authority to explore whether they could be eligible for grant funding.