Most homeowners pay between $400 and $1,500 to seed their lawn. The exact price depends on the size of your yard. Estimate with $0.04 to $0.07 per square foot. Re-seeding of an existing lawn in good condition only costs between $80 and $150.
A number of other variables can add to your project costs:
Fertilizer: $50 - $80
Rock and stone removal: $200 - $400
Sprinkler system installation: $2,500 - $3,500