Request a DemoLog In(844) 692-0626
    • Americas
    • América Latina (Español)
    • Canada (English)
    • Canada (Français)
    • United States (English)
Request a DemoLog In

Addendum

A formal document issued to modify the terms of a construction contract, often specifying changes or clarifications.

An addendum is used to modify or add to the original project documentation, typically after the bidding process has started. It's crucial for ensuring all parties are informed of changes.

Used in a sentence

The architect issued an addendum to the original plans, which includes additional specifications for the lighting fixtures.

Synonyms/variation
  • Amendment

Stay updated on what’s happening in construction.

Subscribe to Blueprint, Procore’s free construction newsletter, to get content from industry experts delivered straight to your inbox.

Learn More

Learn more about Addendum

article-image

A Straightforward Guide to Construction Contract Review

Construction contracts are like the glue for the project team. They’re the ties that bind the working relationships and goals for the project, containing information about responsibilities, liabilities and processes that govern a relationship between construction stakeholders. Despite their importance, contracts are long, and project team members are busy — so it’s easy to understand […]

article-image

FedRAMP: A Guide to Construction Compliance

The federal government has long had to balance a difficult situation: Protecting government data is necessary for national security — but keeping information overly siloed can cause communication breakdowns.  In the wake of the events of September 11, 2001, the White House issued Executive Order 13556. This order established the Controlled Unclassified Information (CUI) program, meant […]

article-image

Building Codes Explained: Navigating The Maze of Construction Standards

When new structures are completed, people want to feel confident that they will stay standing and operate well. This is where building codes help.  Building codes are guidelines that outline the minimum requirements to which the structure and its performance must adhere. When the building is up to code, all the various components of the […]

article-image

Construction Litigation: How Disputes Escalate & How to Manage Them

Construction projects are inherently dynamic, often involving competing interests of timelines, budgets and expectations. Despite best efforts, disputes can arise over issues such as contract breaches, project delays and defective work. When these conflicts can’t be resolved through negotiation or alternative means, litigation becomes the next step, bringing its own set of challenges for all […]

Previous word: AcousticsUp Next: Adhesion

How can we improve this glossary entry?

Thank you!

Thanks for the feedback and helping us improve this glossary entry!

Procore is committed to advancing the construction industry by improving the lives of people working in construction, driving technology innovation, and building a global community of groundbreakers. Our connected global construction platform unites all stakeholders on a project with unlimited access to support and a business model designed for the construction industry.

LinkedIn Icon
LinkedIn
Facebook icon
Facebook
Twitter icon
Twitter
Instagram Icon
Instagram
YouTube icon
YouTube

Call us at (844) 692-0626 to speak with a product expert.

Apple LogoApple App StoreGoogle Play logoGoogle Play

Downloads

Apple LogoApple App StoreGoogle Play logoGoogle Play
  • Privacy Notice
  • Terms of Service
  • Do Not Sell Personal Information

© 2025 Procore Technologies, Inc.