233220  Multifamily Housing Construction

This U.S. industry comprises establishments primarily responsible for
the entire construction (i.e., new work, additions, alterations, and
repairs) of multifamily residential housing units (e.g., highrise,
garden, and town house apartments where each unit is not separated by a
ground-to-roof wall). The units may be constructed for sale as
condominiums or cooperatives, or for rental as apartments.
Establishments identified as multifamily construction management firms
are also included in this industry. Establishments in this industry may
perform work for others or on their own account for sale as speculative
or operative builders. Kinds of establishments include multifamily
housing general contractors, design builders, engineer-constructors,
joint-venture contractors, and turnkey contractors. 

The data published with NAICS code 233220 include the following SIC
industries:

1522 General contractors--residential buildings, other than single-family (pt) 
1531 Operative builders (pt)                                                   
8741 Management services (pt)