New land

So we are buying land and I’m trying to figure out what to do right now. We will build a home and then would like to start a garden and orchard. We have about 2 areas of overgrown brush with some young pines growing. And one bald patch where nothing grows (people who owned this land played baseball there). I’m very new to permaculture, so I don’t want to do damage on this land. But I though of clearing it for now, leaving some small trees if they are good. But someone said to leave it be until spring to see what grows back. The house building will start it January, so they will have to clear some areas. But I’m not even sure where to build for now, it’s hard to walk it as it’s all tall grass and thorny weeds. Where do I start?