Post tension and cantilever connection assembly for a modular construction

A method for constructing a modular construction, the method comprising:

• disposing a first modular unit horizontally adjacent to a second modular unit, where the first and second modular units each comprise a connection assembly, where each connection assembly comprises:
• a side plate coupled to one of the at least two modular units;
• a cantilever plate disposed on top of one of the at least two modular units;
• a first plurality of fasteners configured to couple the cantilever plate to a cantilever beam;
• an end plate coupled to the cantilever beam;
• and
• a second plurality of fasteners configured to couple the end plate coupled to the cantilever beam to the side plate coupled to each of the at least two modular units;
• disposing a cantilever plate on a top surface of the first and second modular units;
• stacking a third modular unit on top of the cantilever plate disposed on either the first or second modular unit;
• and
• coupling a tie connector to each connection assembly of the first and second modular units,
• where the tie connector coupled to each connection assembly is coupled to at least two of the second plurality of fasteners.