Building Commissioning

Maximizing building performance with building commissioning

Discover how building commissioning tests critical systems like HVAC and lighting, ensuring everything works correctly from day one.

Two workers in yellow vests and hard hats inside a building under construction. One is holding a tablet showing HVAC design, also overlaid on the photo.

Building commissioning encompasses review, testing, and verification of a building’s systems before, throughout, and after construction.

What is building commissioning?

Building commissioning is an organized process that starts at the design phase and continues through construction and into the operational life of the building. It involves checking and verifying that all systems—heating, ventilation, air conditioning (HVAC), electrical, plumbing, and even fire safety—work as intended. 

More than just a checklist, building commissioning includes testing, inspecting, and fine-tuning systems to ensure everything functions according to the project’s goals. At its core, commissioning ensures a building performs optimally from day one, which saves money, improves energy efficiency, and extends the building’s lifespan. It’s not just about handing over a set of keys to a new building: it’s about ensuring that the building is ready to serve its occupants effectively, safely, and comfortably.

An engineer in a yellow vest and hard hat uses a laptop computer while checking a rooftop HVAC system

Building commissioning may involve ongoing testing and monitoring to meet its goal of peak system performance.

Goals of building commissioning

The main goal of building commissioning is to make sure a building’s systems work well and as expected. The process helps to ensure that the building runs smoothly, saves energy, keeps people comfortable and safe, follows all the rules, and meets the building owner's needs. 

Key benefits include saving on energy bills, lowering maintenance costs, making equipment last longer, improving air quality, and ensuring the building is a safe and productive place to work or live.

Training staff and regularly monitoring systems are important parts of the commissioning process. By offering training, building operators learn how everything works, can spot problems early, and make sure systems continue running efficiently.

Good documentation, like reports and logs, is critical throughout the process. This helps keep track of how things are going and ensure the building follows safety and performance standards. This documentation becomes a helpful resource for maintaining and fixing building systems long after construction is finished.

Types of building commissioning

There are different types of building commissioning based on the stage of the project and whether the building is new or already in use.

New construction commissioning (NCCx):

  • Building envelope commissioning (BECx): BECx focuses on checking the performance of a building’s outer layers—like windows, doors, roofs, walls, and insulation—to ensure energy efficiency and structural integrity.
  • Fundamental commissioning (FCx): This type covers the main building systems, like heating, cooling, lighting, and controls, to ensure they are installed correctly and operate as designed.
  • Enhanced commissioning (ECx): Goes beyond fundamental commissioning by adding extra steps like cost analysis over the building’s lifetime, extended warranties, and more detailed documentation aimed at optimizing long-term performance and energy savings.

Existing building commissioning (EBCx):

  • Recommissioning (RCx): This is when an already commissioned building is rechecked and adjusted to improve performance and energy savings.
  • Continuous commissioning (CCx): An on-going approach that uses real-time building performance monitoring to continually monitor and adjust systems to keep them running efficiently over time.
  • Retro-commissioning (Retro-Cx): This applies to older buildings that have never been commissioned, focusing on analyzing and optimizing system to improve performance and reduce energy use

Phases of commissioning a building

Commissioning happens in stages throughout the entire building process to ensure systems work well and meet the owner’s needs.

  • Predesign phase: This is where the building’s goals are set. The team gathers the owner's project requirements (OPR) and forms the commissioning team.
  • Design phase: During this stage, the team reviews the design to make sure it meets the owner’s goals. The commissioning team also sets guidelines for how construction should proceed.
  • Construction phase: The systems are installed and tested to make sure they work. Any issues are addressed during this phase.
  • Acceptance phase: Final testing is done, documentation is reviewed, and building operators are trained to handle the systems.
  • Post-acceptance phase: After the building is completed and occupied, the commissioning team monitors how the systems work and provides support to keep everything running efficiently.

Benefits of using software for building commissioning

Building commissioning software offers many advantages that make the process easier and more efficient.

Automation and efficiency

Building commissioning software can automate repetitive tasks like checklist, status tracking, and checking construction documents, which saves time and reduces manual work.

Centralized data management

It keeps all important documents, like plans, checklists, and reports, in one place so everyone involved can easily access them.

Real-time collaboration

Cloud-based software lets team members work together from different locations, speeding up communication and coordination.

Document control

The software ensures that the latest versions of documents are always available, reducing the chance of mistakes and discrepancies.

Data analysis and reporting

These tools allow teams to quickly spot trends or issues and automatically create reports to help make better decisions.

Audit trail and compliance

The software tracks all activities and changes, helping ensure compliance with regulations and creating a record for accountability.

Autodesk software for building commissioning

BIM 360 is a construction management platform that connects, organizes, and optimizes projects from design to construction.


Powerful BIM and CAD tools for designers, engineers, and contractors, including Revit, AutoCAD, Civil 3D, Autodesk Forma, and more


Stories of building commissioning

Construction work views building plans on an on-site computer monitor

Miron

Collaborating in real-time

Miron improved project efficiency by using Autodesk Construction Cloud to collaborate in real-time and create a single source of truth for the project.

Brinkman construction finishes project closeout with 50% less labor using Autodesk build

Brinkman Construction

Finishes Project Closeout with 50% Less Labor Using Autodesk

Through Autodesk Build, Brinkman Construction teams have been able to complete project tasks twice as fast as before, and build stronger relationships with every project stakeholder.

Urban apartment complex under construction

Briggs & Forrester Group

End-to-end efficiency with Autodesk Construction Cloud

84.7% more time-efficient processes, improved collaboration across departments and seamless integration using Autodesk Construction Cloud.

Get started with Autodesk software for building commissioning

Ensure your building’s systems function perfectly with commissioning, making everything more efficient, reliable, and sustainable.

Planners and developers discussing building commissioning to design a beautiful building conceptually

Who benefits from building commissioning?

Architects benefit from building commissioning because it helps ensure their designs are fully realized. It’s one thing to create a beautiful building on paper, but commissioning ensures that it functions as intended in the real world. The process provides architects with valuable feedback that can be applied to future projects.

Builders see advantages as well. With commissioning, the construction process becomes more efficient. Contractors are less likely to face costly rework, and there’s greater confidence that systems will be installed correctly the first time.

City planners and developers gain peace of mind knowing that commissioned buildings meet local codes, safety standards, and sustainability goals. They also get to add reliable, high-performing buildings to their portfolios, enhancing their reputations.

Lastly, the building owners and occupants benefit from reduced operational costs, better indoor environments, and fewer long-term maintenance issues.

Devlopers using ACC to visualize systems in 3d to identify potential issues before construction

Technology’s role in modern building commissioning

Technology plays a massive role in enhancing the building commissioning process. Software solutions like Autodesk Construction Cloud, for instance, allow teams to visualize systems in 3D, identify potential issues before construction, and track progress in real-time.

Whether designing a new skyscraper or retrofitting an old office building, commissioning is your best bet for a project that delivers on all fronts: energy savings, comfort, sustainability, and cost-effectiveness.

Building commissioning resources

Learn how to improve building performance from the start and lower risks with this detailed guide on building commissioning.

Improve the building commissioning process by tracking equipment and assets efficiently, speeding up the transition from construction to operations.

Connect Autodesk’s leading solutions with CxPlanner to manage commissioning tasks in one integrated platform.

Frequently asked questions (FAQ) on building commissioning

What is the commissioning of a building?

The commissioning of a building is a systematic, comprehensive process ensuring that all systems and components within the structure operate efficiently and in accordance with the owner’s requirements and design intent. This process spans various phases, including predesign, design, construction, acceptance, and post-acceptance. It involves tasks such as reviewing design documents, verifying proper installation of systems, conducting functional testing, and addressing issues to guarantee optimal building performance. By implementing building commissioning, potential problems are identified and resolved early, contributing to improved energy efficiency, occupant comfort, and overall satisfaction with the building’s operation throughout its lifecycle

What is the purpose of building commissioning?

The purpose of commissioning a building is to ensure that a constructed building meets its design intent and the owner’s project requirements. Commissioning verifies and optimizes the performance of all building systems, identifying and addressing issues during the construction phase. The process plays a crucial role in enhancing energy efficiency, promoting occupant comfort and safety, and ensuring compliance with regulations and industry standards. Commissioning also supports the sustainable operation of buildings by minimizing resource consumption and optimizing system functionality.

What are the types of commissioning in construction?

In construction, various types of commissioning are employed to address aspects and stages of a building’s lifecycle:

  • New construction commissioning (NCCx) focuses on newly constructed buildings, ensuring that all systems meet design intent.
  • Building envelope commissioning (BECx) concentrates on the commissioning of elements like windows and doors for energy efficiency.
  • Fundamental commissioning (FCx) involves major systems like HVAC, ensuring they operate efficiently.
  • Enhanced commissioning (ECx) goes beyond fundamentals, incorporating additional services for a more comprehensive approach.
  • Existing building commissioning (EBCx) includes recommissioning (RCx) for existing buildings, retro-commissioning (Retro-Cx) for older structures, and continuous commissioning (CCx) for ongoing system optimization.

What is commissioning in construction?

Building commissioning is a quality assurance process where a building's systems, like HVAC, electrical, and plumbing, are tested and fine-tuned to ensure they perform as designed before occupants move in.

When should building commissioning start?

Commissioning should begin during the pre-design phase, so systems can be tested and adjusted throughout the construction process, not just at the end.

What systems are typically commissioned?

Commonly commissioned systems include heating, ventilation, air conditioning (HVAC), plumbing, electrical, lighting, fire safety, and energy management systems.

Is commissioning only for new buildings?

No, commissioning is useful for both new and existing buildings. In existing buildings, the process is called "retro-commissioning" and ensures systems are running efficiently.

Who is responsible for building commissioning?

A commissioning agent or commissioning team, typically hired by the building owner, oversees the process. They work with architects, engineers, contractors, and the building's operational team.

What’s the difference between commissioning and quality control?

Quality control ensures that the building is built according to plans, while commissioning tests and adjusts systems to make sure they perform as intended after construction.

What happens after the commissioning process is complete?

After commissioning, the team provides documentation, and training is offered to operational staff to ensure they know how to manage and maintain the building systems properly.

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