In a world where magic energy and life-force are compatible if not equivalent forces, woodcutting can be a problem in regions with high magic potential.
If a woodcutter fells a tree and leaves it, it will grow new roots in about a day. But only if there is some life left in the tree.
Trees are still trees like we know them, with the one difference, that they are able to tap magic as an additional source of energy. It still has to use its own available matter.
When can the tree (or its wood) still be considered alive and when is it actually and finally dead? What can the woodcutter do, to kill the wood and therefore make it usable?
The state of technology is roughly comparable with technology in medieval times. Use of magic is forbidden.
The trees have to be cut to make room to build other stuff. For many of the buildings and constructions, fresh wood could be used, if it weren't for the high magic potential of the area. So the wood can be transported to a less magical place and older, dead wood imported as building material, but on-site solutions are preferred.
[edit for clarification and additional information:] With "dead" I mean unable to grow anymore. It is common with plants, that you can cut of a part and put it into water or directly into the soil. It will then grow new roots and new leaves after a while. The magic mainly speeds this process up by offering an abundance of energy.
There is no (known) way to shield of magic. It is forbidden to use magic as well as research it. So only little is known about the way magic works.
The area is somewhat hostile, due to beings that aim to protect the trees and do use the available magic. So long-term solutions are unfortunately not optimal. Something that takes less than a few days without removing the trees from the area would be preferable to one that takes longer.