Smart Buildings by Design

Smart buildings aren’t just about automation-they’re about integration. In today’s world, HVAC, lighting, security, IT, fire alarm, and AV systems must work together seamlessly to support building performance, cybersecurity, and long-term operational goals. But too often, they remain isolated-leading to wasted energy, frustrated users, and costly retrofits.Smart Buildings by Design: How the Fourth Trade Connects It All with the Purdue Model introduces a new mindset for building professionals: integration is its own discipline-the 'Fourth Trade.' Drawing on over 20 years of experience in building automation and operational technology (OT), Jacob Jackson presents a top-down strategy rooted in the Purdue Model that starts at the enterprise level and works down through IT, OT, and field-level systems.This book provides practical tools and insights for engineers, contractors, architects, facility managers, and executives involved in new construction, renovations, or digital transformation efforts. You’ll learn:How different building systems interact-and why they often conflictWhere integration breaks down in real projects (and how to fix it)How to apply the Purdue Model in reverse to align technical design with business objectivesWays to reduce risk through standards like Division 25, BACnet, and structured network designHow to make the business case for integration to decision-makersSmart Buildings by Design is essential reading for anyone responsible for creating intelligent, connected, and future-ready buildings. Whether you’re struggling with siloed systems or planning a next-generation facility, this book will help you build with clarity, strategy, and confidence-from Day One.