Real estate websites, such as Zillow, Realtor.com and Homes.com, allow users to search for homes based on square footage. This filter is usually found on the advanced search options menu. Real estate agents can provide in-depth information on local homes to meet square footage requirements.
Zillow and Homes.com allow users to enter a minimum and maximum desired square footage. For best results, enter a minimum number that's a few hundred square feet less than 3,000 and a maximum number that's a few hundred feet more because very few homes are exactly 3,000 square feet.
Realtor.com provides preset options for users in its search. Click "3,000+" to see homes that start at 3,000 square feet.