Kelly Jones lives with her Vinnie, who suffers from muscle wasting disease, Spinal Muscular Atrophy Type 1.
The mum and son are currently housed in a first floor flat, which Kelly says makes caring for him “really difficult”.
She says she first asked the council for help three years ago.
A Kingston Council spokesperson said:
"We are working to help identify a suitable home for Ms Harrison that meets her family's needs as soon as possible.
Ms Harrison is amongst those applicants with the highest priority on our Housing Register. Unfortunately, the wait she has experienced for a new home reflects the scarcity of available social housing, and specifically that which meets her family’s needs.
Ms Harrison has been kept updated about our efforts to find suitable accommodation for her family and we are continuing to provide support while this work continues. Her Occupational Therapist is arranging a viewing of a potential property and will assess suitability before any offers are made.
This is part of a national crisis in council housing and Kingston is no different. We have begun a programme to build more homes but it takes time. In the meanwhile we are doing all we can to find a home that will suit Ms Harrison’s family needs."