Owner's Project Requirements (OPR): Defining Project Goals Before Design Begins

Owner's Project Requirements (OPR) document project goals, expectations, and success criteria before design begins. Foundation for design (Basis of Design responds to OPR), construction, and commissioning (verification of OPR satisfaction). Substantial value for owners articulating needs systematically. Required for LEED certification and commissioning processes. Quality OPR development substantially affects project success. Understanding OPR helps construction firms work effectively with owners and design teams.

This post covers Owner's Project Requirements.

OPR Contents

OPR comprehensive content:

OPR comprehensive content articulating project. Owner objectives and goals (high-level priorities). Functional requirements (specific use needs). Performance criteria including energy efficiency, indoor environmental quality. Sustainability goals (LEED level, energy targets, water targets). Budget parameters and constraints. Schedule requirements with specific milestones. Specific to owner needs and project type.

OPR Process

OPR process structured:

OPR process structured for quality. Owner-led with commissioning consultant or owner's representative facilitation typical. Stakeholder workshops with users, operators, executives. Documentation produced. Approved before design begins by ownership. Updated throughout project if substantial changes (with formal change management). Specific to project type and complexity. Foundation for everything that follows in design and construction.

Basis of Design

BOD responds to OPR:

Basis of Design (BOD) responds to OPR with specific design approach. Designer's response to OPR articulating how design meets requirements. Specific design strategies including envelope, HVAC, lighting approaches. System selections per OPR requirements. Performance targets per OPR (specific energy use intensity, comfort criteria). Specific to discipline (architectural, mechanical, electrical, structural). Living document during design updated as design progresses.

Commissioning Connection

OPR foundation for commissioning:

OPR foundation for commissioning. Commissioning verifies OPR achievement — specific verification of stated goals. Test scripts reference OPR criteria. Acceptance per OPR criteria. Specific verification activities tied to OPR. Required for LEED certification (OPR is prerequisite). Quality OPR enables quality commissioning — vague OPR produces vague verification.

Common OPR Categories

Common categories in OPR:

Common OPR categories. Functional needs of users and operations. Energy targets through EUI (Energy Use Intensity) or savings vs baseline. Indoor environmental quality including thermal comfort, air quality, daylighting. Acoustics for specific spaces. Lighting illumination and controls. Maintenance and operability for owner operations. Specific to building type — healthcare, education, hospitality have specific concerns.

When OPR Required

OPR required for some:

OPR required for some projects, best practice all substantial. LEED certification (any level) requires OPR as prerequisite for fundamental commissioning. ASHRAE 90.1 commissioning requirements include OPR for substantial buildings. Owner standards require OPR for some substantial owners. Best practice for all substantial projects regardless of certification. Specific to project requirements and goals.

Bottom Line

Owner's Project Requirements document project goals before design. OPR contents include objectives, functional requirements, performance criteria, sustainability, budget, schedule. Process structured with stakeholder engagement. Basis of Design responds to OPR. Commissioning verifies OPR achievement. Common categories include energy, indoor environment, acoustics, lighting, maintenance. Required for LEED, ASHRAE commissioning. For construction firms, quality OPR provides clear expectations supporting successful delivery. Substantial benefit for owners articulating needs systematically. Quality OPR substantially affects project outcomes.