Welcome Martin!
With LibreCAD it should not be a problem to draw your property and its contents.
You can find resources linked on our homepage and the forum start page.
Depending on your preferences you can use our online manual, the wiki or this forum for information about using LibreCAD.
There are also video tutorials on YouTube, from independent authors.
Armin
investing less than half an hour into Search function can save hours or days of waiting for a solution