(a) Except as provided in subsection (b) of this section, after the petition is filed and payment is made under § 8-323 of this subtitle:
(1) The Commission may take possession of the property to be acquired, as shown on the recorded plats;
(2) The Administration may proceed with construction without interference by the owner; and
(3) With the permission of the Administration and under its supervision, any public or private utility may install its facilities on any land being acquired by the Commission in fee simple.
(b) Unless the owner agrees otherwise, if a dwelling or place of business is taken, the resident or occupant need not vacate the dwelling or place of business until the title to the property has been acquired by deed or condemnation.