As of , there are 45 properties listed for sale in the city of Grass Lake and 45 properties listed for sale in the ZIP code 49240. Those 45 Grass Lake properties include 45 single family homes and 0 condos. This residential (general) (single) home located at 9087 Seymour Rd in 49240 was last listed for $186,000. This is 31% below the median of $270,000 for that ZIP code and 31% below the current median price of $270,000 for Grass Lake. 9087 Seymour Rd is roughly — Sqft, which is 100% below the Grass Lake median of 1,940 and 100% below the 49240 ZIP code median of 1,940. This property's price per Sqft was —, which is 100% below the current median price in 49240 of $134 and 100% below the Grass Lake median of $134 per Sqft.