General buildings includes residential, commercial, institutional and industrial buildings. Residential construction produces buildings for human habitation, including single-family dwellings, condominiums, multifamily townhouses, flats and apartments and high-rise apartment buildings. Depending on the project’s complexity, such work is usually designed by architects or builders themselves, with construction performed by contractors who hire specialty subcontractors as needed; Commercial construction Commercial construction includes retail and wholesale stores, markets and shops, shopping centers, office buildings, warehouses and small manufacturing facilities. Examples of institutional construction are medical clinics and hospitals, schools and universities, recreational centers and athletic stadiums, governmental buildings and houses of worship and other religious buildings. Architectural firms Architectural firms usually take the lead in the design of commercial and instituti...