Verifying B101 Adherence: Standard of Care, Scope Tracking, Phase Billing, and Compliance

How architects verify and maintain compliance with AIA B101 provisions throughout a project, including standard of care obligations, scope management, phase-based billing, and regulatory compliance procedures.

ARE · Project Management

Overview

The AIA B101 Owner-Architect Agreement defines the rules of engagement for every design project. It spells out your scope of services, your compensation structure, your standard of care, and the compliance obligations you carry from Schematic Design through Construction Administration.

But signing the agreement is just the starting line. The real work is tracking adherence throughout the project. Scope creep, billing mismatches, and unclear phase transitions are the source of most disputes between owners and architects. They also create the conditions for professional liability claims.

The standard of care sits at the center of all of this. It is the legal benchmark against which your professional performance gets measured. Not perfection. Not the best possible outcome. The care and skill ordinarily provided by architects practicing under similar circumstances in the same locality. That distinction matters enormously when a claim arises.

Scope tracking ensures you are delivering what you agreed to deliver, and getting paid for additional services when the owner requests work beyond the original agreement. Phase billing ties compensation to defined milestones, giving both parties financial transparency. And compliance monitoring keeps you aligned with building codes, NCARB Model Law requirements, and your contractual obligations.

For the PjM exam, you need to understand how these B101 provisions interact, where architects commonly fall short, and what systems prevent problems before they become disputes.

Essential

The Standard of Care: What It Actually Means The standard of care is not about being perfect. Read that again, because it trips up candidates constantly. The legal definition: the care and skill ordinarily provided by architects practicing in the same or similar locality under the same or similar circumstances. This was formally incorporated into AIA documents starting with the 2007 revisions, though it had existed as a legal concept since the 1800s in the United States. Four elements must be proven for a negligence claim against an architect to succeed: (1) a professional duty owed to the claimant, (2) a breach of that duty, (3) the breach was the legal cause of harm, and (4) the claimant suffered actual damages. The standard of care determines whether element two has been met. This standard is intentionally flexible.

Professional

Scenario: The Expanding Renovation Consider a mid-size firm retained under B101 for a historic building renovation. The original scope covers SD through CA for interior renovations. During DD, the owner discovers structural issues in the building envelope and asks the architect to incorporate exterior restoration work. The architect, eager to maintain the client relationship, begins design work on the exterior scope without a formal amendment. Three months later, the exterior work has consumed 200 hours. The owner disputes the additional fee, arguing the work was implied by "renovation." The architect has no written authorization. This scenario illustrates the intersection of scope tracking and standard of care. The architect's obligation to the original scope was clear. The failure point was not competence but documentation. ## Standard of Care in Contested Claims When claims arise, the standard of care becomes the central question.

TLDR

Standard of care = the ordinary skill level of architects in the same locality and circumstances. Not perfection.
Four negligence elements: duty owed, breach, causation, damages. Standard of care governs element two.
B101 separates Basic Services (five phases, fixed fee) from Additional Services (require written authorization).
Track scope changes in writing before doing the work. Verbal owner approvals are not reliable protection.
Phase billing ties compensation to milestones. Typical splits: SD 15%, DD 20%, CD 40%, Bidding 5%, CA 20%.
Monitor phase budget consumption internally at 30/60/90% checkpoints. Flag overruns early.
NCARB Model Law Section 10A sets minimum CCA obligations: regular site visits and code violation notification.
CCA site visits must be documented with dates, observations, and deficiencies. This log is your defense.
Standard of care is measured at the time of design, not with hindsight.
State board requirements may exceed NCARB minimums. Know your jurisdiction.

ELI5

Think of the B101 agreement as a rulebook for a game between the architect and the owner. Before the game starts, both sides agree on what the architect will do, how much the architect gets paid, and what the rules are. The "standard of care" is like the minimum skill level expected of a player. You do not have to be the best player on the field. You just have to play as well as other reasonable players at your level would play in the same situation. If something goes wrong and someone claims you messed up, the question is: would other qualified architects have done the same thing you did? If yes, you met the standard. Scope tracking is about keeping score. The contract says "the architect will do these specific things.

AREProject Management

Verifying B101 Adherence: Standard of Care, Scope Tracking, Phase Billing, and Compliance

2 min read222 words

Why B101 Compliance Tracking Matters for Every Project

For the PjM exam, you need to understand how these B101 provisions interact, where architects commonly fall short, and what systems prevent problems before they become disputes.

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