Vested right means the entitlement to develop enjoyed by a project because of the fact that the city issued a development order or permit for the project prior to the effective date of the ordinance from which this section is derived. Such a project is not required to meet the concurrency requirements of this chapter, unless the project is significantly changed in terms of its density, intensity or facility impact subsequent to such effective date, in which case it will lose its vested right and be obliged to undergo a review under this chapter.