Currently we do not have filters for $/square feet but we do have the filter by acreage. To be able to see this filter, follow these instructions.
Log in to your Trulia website.
Click the "BUY" option on the upper left of the page. You will then be taken to the next page.
Then click on the "MORE" option on the right side of the page.
Select on the "LOT SIZE".
I hope that this information was able to help you in anyway possible.
For future reference, you can feel free to contact us about this type of inquiry through our contact form here:
Thank you for using Trulia!
Consumer Care Advocate