The construction project will be finished in approximately one year.
If 'from now' is removed from the sentence given in the question, there will be no change in the meaning of the sentence. But if other words like downtown, construction project, etc are removed, then the sentence will become incomplete and there would be no clarity in the sentence. For example if we remove downtown, then the sentence would not give information about which project are we talking about. So such important words that change the meaning of the sentence or leave us with no clarity, should not be removed from the sentence.
The central story of Living to Tell the Tale is Gabriel García Márquez's journey with his mother to sell the home in which he had grown up. This journey sparks an outpouring of memories and initiates a theme of change—temporal, personal, and cultural—that pervades the book.
You should add more context to your question if you wish for an answer. Though a good assistant to find which is correct on your own is Grammerly. It's a writing assistant. Just add it to your phone or PC.