The cost of installing a footpath in Allenwood is being described as "significant".
Irish Water is in the midst of a million euro mains up-grade project there, on the Kilmeague road.
Sinn Fein Cllr. Mark Lynch, had asked KCC to undertake lighting and path up-grades at the same time.
The council says the cost would be notable because of "possible land acquisition required and the relocation of services"