If you want an instant lawn, sod's the only way to go. First, prepare your soil with lime and fertilizer, just as you would for a seeded lawn. Lay the strips of sod in a staggered pattern so that the joints overlap. Make sure the seams are tight so that when the roots knit, the seams will be invisible. Make sure you roll it all out in one day. Even overnight, rolled sod will burn yellow. Keep your new lawn well watered for several weeks until new roots have penetrated the soil.
The most common radiant floor warming systems are either hydronic (circulating hot water in tubes in the floor) or electric (heating cables in the floor). Hydronic systems are more complicated, requiring pumps and valves and modulators and so on, and, as a result, are a lot more expensive to install than electric. Still, for whole house heating solutions, hydronics are a good choice. By contrast, electric systems are inexpensive enough for single room applications and simple enough for do-it-yourselfers. Suitable for new construction or remodeling applications, electric floor warming systems include a network of cables installed in the mortar just below the tiles. These cables gently warm the tiles, operating on ordinary house current. While using a professional electrician is advised for those not comfortable working on electrical installations, these systems are generally easy to install and will not compromise the integrity of the tile installation.