For the reasons given in #3 above, the answer would be ‘no’. A church without Sunday Mass, provided the faithful have ‘right of entry’ to the building for the purposes of divine worship, remains a church. The designation as church, oratory and private chapel does not depend on the frequency of the sacraments but on who has access to the sacred place. For instance, if by decree of the bishop a church is designated as an oratory those with access to this location would be members of a religious order.  The faithful in general, however, would not have right of access. Ordinarily, the sacred place will remain as a church understanding the Code is, as it were, on the side of the lay faithful, in ensuring that they have access to churches for the exercise of divine worship.  Pastors should be reminded that if a church loses Sunday Mass the faithful have to have access to it if it is to remain as a church. There is a preference in the law for the Blessed Sacrament to be reserved there and for Mass to be celebrated twice a month. However, even if this is not possible, it can remain as a church, but the faithful must have ‘right of entry.’