I've managed to do it for a GridViewFooterRow by creating a style and overriding the MinHeight property but the same does not work for the grouped footer. I can see in Silverlight Spy that the MinHeight is set to 25 and the style is not being obeyed. I've tried both a global implicit style and also setting the style explicitly via the GroupFooterRowStyle property of the RadGridView. Is there something extra I need to do?