Building Systems Design (BSD) Review Guide

Building Systems Design (BSD) tests whether you understand how a building actually works as a system — not just how it looks. It blends anthropometrics, building utilities, and increasingly, sustainability. Here's the core of the subject.

Human dimensions and space planning

A lot of BSD questions come back to people: how much space a person needs to move, sit, and work comfortably. Know the standard clearance and dimension figures — circulation widths, seat and table sizes, door clearances — and the logic behind them. When in doubt, think about comfortable movement and safety.

• Standard human dimension ranges and anthropometric data.
• Minimum clearances for corridors, doorways, and stairs.
• How space standards differ by building occupancy.

Green and sustainable building

Sustainability is a growing share of the exam. Understand the core ideas and the benefits framework:

• The principles and benefits of green building (environmental, economic, health).
• Energy efficiency, water efficiency, and materials selection.
• Indoor environmental quality and daylighting.
• Common green building rating systems and their intent.

Building utilities and systems integration

BSD overlaps with mechanical, electrical, plumbing, and fire-protection systems. You don't need to design them, but you need to understand their role and how they integrate:

1. HVAC and why thermal comfort matters.
2. Plumbing and drainage fundamentals, including fixture counts.
3. Electrical and lighting basics, and emergency power.
4. Fire safety: egress, detection, and suppression systems.
5. Vertical transportation: stairs, ramps, and elevators.

Building permits and codes

Know the basic regulatory process — permits, approvals, and the authorities involved — and the general intent of building codes. Questions here are usually about process and responsibility rather than deep technical detail.

Subject-tagged practice questions, timed exams, and progress analytics — free.