Zillow Advice: Home Buying - I don't understand your lot size descriptions. Could you possibly put them in acres? http://www.zillow.com/advice-thread/I-don%27t-understand-your-lot-size-descriptions-Could-you-possibly-put-them-in-acres/464714/ Zillow Advice | Zillow Real Estate That is a number drilled ... http://www.zillow.com/advice-thread/I-don%27t-understand-your-lot-size-descriptions-Could-you-possibly-put-them-in-acres/464714/ That is a number drilled in our heads. 43,560 sq ft = 1 acre and 21,780 sq ft = 1/2 acre.<br/> Thu, 18 Oct 2012 19:41:00 GMT http://www.zillow.com/advice-thread/I-don%27t-understand-your-lot-size-descriptions-Could-you-possibly-put-them-in-acres/464714/ 2012-10-18T19:41:00Z Actually, an acre is 43,560 ... http://www.zillow.com/advice-thread/I-don%27t-understand-your-lot-size-descriptions-Could-you-possibly-put-them-in-acres/464714/ Actually, an acre is 43,560 SF. Tom must have missed that day of class. Thu, 18 Oct 2012 18:45:00 GMT http://www.zillow.com/advice-thread/I-don%27t-understand-your-lot-size-descriptions-Could-you-possibly-put-them-in-acres/464714/ 2012-10-18T18:45:00Z I am not sure why&nbsp;Zillow ... http://www.zillow.com/advice-thread/I-don%27t-understand-your-lot-size-descriptions-Could-you-possibly-put-them-in-acres/464714/ I am not sure why&nbsp;Zillow uses&nbsp;square footage, but an acre is 209'x209' or 43,681 sq ft.&nbsp; So, 1/2 acre would be just over 20,000 sq ft.&nbsp; I hope that helps.&nbsp; You should be able to search by the lot size you are looking for using those numbers.&nbsp; Let me know if that makes sense. Thu, 18 Oct 2012 18:38:00 GMT http://www.zillow.com/advice-thread/I-don%27t-understand-your-lot-size-descriptions-Could-you-possibly-put-them-in-acres/464714/ 2012-10-18T18:38:00Z