It depends on if you are referring to a building/object OR what is INSIDE the building/object. What does the pronoun IT mean in this sentence? That will help you find the answer. It has been built several years. 1) BUILDING/MONUMENT a) The building has been built for several years? NO. b) The building is several years old. YES It is already implied that buildings are "built" 2. The building was established several years ago. YES 3. The building has been around FOR several years. YES

All ok except for built. For built you would need a specific time/date reference or "ago". It was built many/some years ago. It was built in 2010. ***edit*** "Build" unlikely to be used with present perfect.