The Scope of Services Is the Core of the Owner-Architect Agreement - Every Fee Dispute Traces Back to It
The AIA B101 Standard Form of Agreement Between Owner and Architect defines the architect's services in two categories: Basic Services (the standard design and project delivery services that are assumed to be included in the agreement unless modified) and Additional Services (services that are within the architect's capability but are not included in the basic fee - they are provided only when requested by the owner and compensated separately). Understanding this distinction, knowing what falls in each category, and being able to identify when a client is asking for additional services that require a fee supplement is foundational practice management knowledge tested on the ARE PcM exam and critical to every architect's professional practice.
Basic Services Under AIA B101
AIA B101 defines five phases of Basic Services: (1) Schematic Design - the initial design response to the approved program, presented as schematic drawings for owner review and approval; (2) Design Development - the further development of the approved schematic design, including coordination with engineering consultants, to establish the final building size, character, and materials; (3) Construction Documents - the complete set of drawings and specifications from which the building will be bid and built; (4) Bidding or Negotiation - preparation of bidding documents, response to bidder questions, addenda, bid analysis, and award recommendation; (5) Construction Administration - site visits at appropriate intervals, review of shop drawings and submittals, RFI responses, payment certification, change order administration, and certificate of substantial completion. These five phases encompass the standard design and construction delivery services for a single project.
Additional Services
Additional Services under AIA B101 are services that may be needed for specific projects but are not included in the standard Basic Services scope. AIA B101 Article 4 identifies many Additional Services, including: programming (the pre-design space planning and requirements analysis phase - not included in basic services unless added by agreement); geotechnical or hazardous material investigations; measured drawings of existing conditions; historic preservation documentation; record drawings (as-built drawings post-construction); post-occupancy evaluation; tenant space planning and coordination in multi-tenant projects; extended project representation (continuous on-site presence rather than periodic visits); and expert witness services. When the owner asks the architect to provide any of these services, the architect should issue a supplemental services authorization with an additional fee before proceeding.
Identifying Additional Service Requests
One of the most common practice management failures is providing additional services at no additional fee - either because the architect did not recognize the service as additional, or because they did not want to raise the topic with the client. The most reliable technique: when a client asks for something that was not in the original scope of services, the architect immediately flags it as a potential additional service, confirms whether the budget permits the additional service, and issues a fee proposal before providing the service. "Scope creep" - the gradual addition of unrequited services to a fixed-fee contract - is among the most common causes of unprofitable projects.
Key Exam Points
- AIA B101 Basic Services: 5 phases - Schematic Design, Design Development, Construction Documents, Bidding, Construction Administration.
- Additional Services: not included in basic fee; require separate authorization and compensation.
- Common additional services: programming, record drawings, post-occupancy evaluation, extended CA, tenant coordination.
- Scope creep: gradual addition of services without fee adjustment; erodes project profitability.
- Identify and price additional services before providing them - not after.
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