On minecraft pc, how do i find my house if i have lost it and did not sleep in the bed at all?

Your best bet would be to make a compass (shows you your way to the spawn) and see if you know where your house is from there. If that doesn't help, then keep track of important coordinates (like your house or a stronghold) so you don't make this mistake in the future. You said you didn't sleep in a bed yet so the house could not have been that life-changing, so don't stress about it too much if it's gone forever, and instead make an even better house.

If you have cheats turned on go in creative mode and fly. If not, then man you're screwed and I hope you weren't far into the game.

1. If you still remember some of the landmarks around you, retrace your steps.
2. If you have a Map Mod roam around the previous places you went to and zoom in from time to time on the map to check that would look like something your house is made of. (ex. Oak Wood can easily spotted in the map especially if your house is big)
3. If have your Screen shot with F3 out you can easily find it.

But if you have no map or a screen shot of your place. You'll have a hard time. So I suggest doing #3 as your routine before you start exploring.

Craft a compass (for Iron Ignots surrounding Redstone) and head back to spawn. From there you will hopefully recognize landmarks to get back home. Once there, craft a book and quill and write the coordinates for your house. (It's under X: Y: Z: . Access by hitting F3). And place a trail of torches or some other trail marker next time you leave your house.