The development will be located in Athlone.
Lidl Ireland is being granted planning permission to build three houses in Westmeath.
The four bedroom town houses will be located in the Baylough area of Athlone.
The application is an extension of a previous 15 house development on an adjacent site, given the go ahead by the local authority in May 2019.
Twelve conditions have been attached to the planning approval by Westmeath county council.