Listing details for 9205 Happy TRL, Austin, TX 78754 : Price Reduced! Outside Austin City Limits, NO City Taxes! No HOA. Check out the super Low County Taxes and Tax Appraisals in neighborhood, historic opportunity to purchase your Texas Homestead!! Mature Pecan Trees. Large Outbuilding and level yard, almost a half acre, 161 x 120 Foot Lot! Close to major highways easy access to the central city. Walnut Place is the best close in neighborhood, NEXT TO but Not in the City limits of Austin.