Hiring separate designers, architects, engineers, and contractors means coordinating people who do not know each other and may never meet in person. Communication gaps between separate firms are where budgets blow up and timelines collapse. A design-build company in Las Vegas keeps the entire team in the same office, so a designer can walk down the hall to check a structural question or verify pricing in real time — eliminating the weeks-long delays and miscommunications that plague multi-firm projects.