What can I use instead of fill Sand?
Topsoil is typically used to build these areas up. Some homeowners want to simply fill in some holes and simply lay sod or plant grass seed. Growing Your Garden / Lawn – The most common use of topsoil is gardening.

Allen
City in Texas
Allen is a city in Collin County in the U.S. state of Texas, and a northern suburb of Dallas. According to the 2020 U.S. census its population was 104,627, up from 84,246 in 2010. Allen is located approximately twenty miles north of downtown Dallas and is a part of the Dallas–Fort Worth metropolitan area.