How to build houses fast in Minecraft PC?

I have Minecraft 1.5.2 because I can't update but I want to build a big city on minecraft but it took me 7 hours just for the first house. Also, how do you build roads faster, without world edit?

Unfortunately without world edit or mods you don't really have that option except building it block by block which takes forever, creative mode and fly can help a bit. It also helps if you kind of build the walls by creating a 3 block pillar, hover above it and then aim down and just hold the button down and then use wasd to guide yourself around. Then the roof you just hover and kind of do the same.