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November 2023

Source: Archibus/FM, a Computer Aided Facility Management System from Planning Resources at Facilities & Services. Total square footage is updated periodically in Archibus/FM, and extracted yearly in October/November for the Campus Profile. The information is based on standards published in the most recent Postsecondary Education Facilities Inventory and Classification Manual issued by the U.S Department of Education Office of Educational Research and Improvement.

Net Assignable Square Footage (NASF) is determined by drawing a line around the interior walls of a particular room or space such as classroom, office, lab or work rooms and then assigning the resulting square footage to a department. NASF is maintained at the room level by department.

Over the years, space has increased due to both the addition of new buildings and a more complete inventory of existing buildings (e.g., adding leased space, South Farm space, CITES network closets, and data centers).

3410 Total Net Assignable Sq Ft
Total "net assignable square feet" of space under the control of this unit, including leased space. This total may not equal the sum of the categories below because the categories may not account for all of the uses. Common examples of exclusions are space in the process of alterations, unfinished space, and inactive space. We are excluding any off-campus space from the NASF data at this time.

3420 Unclassified NASF: Unclassified Facilities, Room Use Codes: 000-099
This category aggregates space that is not currently assigned, but could be in the future. The term "unclassified" includes inactive or unfinished areas, or areas in the process of conversion.

3430 Class NASF: Classroom Facilities, Room Use Codes: 100s, selected 210-215
This category aggregates classroom facilities as an institution-wide resource, even though these areas may fall under different levels of organizational control. The term "classroom" includes not only general purpose classrooms, but also lecture halls, recitation rooms, seminar rooms, and other rooms used primarily for scheduled non-laboratory instruction. This area may contain various types of instructional aids or equipment as long as these do not tie the room to instruction in a specific subject or discipline.

3450 Teaching Lab NASF: Class Laboratory, Room Use Codes: 210-215
A room used primarily for formally or regularly scheduled classes that require special purpose equipment or a specific room configuration for student participation, experimentation, observations, or practice in an academic discipline. May also represent rooms that directly serve one or more class laboratories as an extension of the activities in those rooms.

3470 Open Lab NASF: Room Use Codes: 220-225
A laboratory used primarily for individual or group instruction that is informally scheduled, unscheduled, or open. To specify, a laboratory designed for or furnished with equipment that serves the needs of a particular discipline or discipline group for individual or group instruction where 1) use of the room is not formally or regularly scheduled, or 2) access is limited to specific groups of students. May also include rooms that directly serve one or more open laboratories as an extension of the activities in those rooms.

3490 Research Lab NASF: Research Laboratory, Room Use Codes: 250-255 and Animal Quarters, Room Use Codes: 570-575
Research Laboratory: A room used primarily for laboratory experimentation, research or training in research methods; or professional research and observation; or structured creative activity within a specific program; or support rooms for these functions.

Animal Quarters: Rooms that house laboratory animals or directly serve as an extension of activities in such rooms.

3510 Office NASF: Office Facilities, Room Use Codes: 300-400
Office facilities are individual, multi-person, or workstation space specifically assigned to academic, administrative, and service functions of a college or university.

3520 Study: Study Facilities, Room Use Codes: 400-500
Study space is classified into five categories: study room, stack, open-stack study room, processing room, and study service. Primarily rooms used for library activities.

3530 Special NASF: Special Use Facilities: 500-600, excluding codes 570 and 575
This category includes several room use categories that are sufficiently specialized in their primary activity or function to merit a unique room code. Areas and rooms for military training, athletic activity, media production, clinical activities (outside of separately organized healthcare facilities), demonstration, agricultural field activities, and animal and plant shelters are included here.

3540 General NASF: General Use Facilities, Room Use Codes: 600-700
General use facilities are characterized by a broader availability to faculty, students, staff, or the public than are Special Use Facilities, which are typically limited to a small group or special population. General use facilities comprise a campus general service or functional support system (assembly, exhibition, dining, relaxation, merchandising, recreation, general meetings, day care) for the institutional and participant community populations.

3550 Support NASF: Support Facilities, Room Use Codes: 700-800
Support facilities, which provide centralized space for various auxiliary support systems and services of a campus, help keep all institutional programs and activities operational. While not as directly accessible to institutional and community members as general use facilities, these areas provide a continuous, indirect support system to faculty, staff, students, and the public. Included are centralized areas for computer-based data processing and telecommunications, shop services, general storage and supply, vehicle storage, central services, and hazardous material areas.

3560 Health & Residential NASF: Health Care & Residential Facilities: 800-999
Health Care Facilities: Room use classifications for patient care rooms that are located in separately organized health care facilities: student infirmaries, teaching hospitals and clinics, and veterinary and medical schools. Room codes and definitions apply to both human and animal healthcare areas.
Residential Facilities: Housing for students, faculty, staff, and visitors to the institution. Hotel or motel and other guest facilities are included in this series if they are owned or controlled by the institution and used for purposes associated with defined institutional missions.

Please contact Kimberly McLaughlin (Space Inventory) at or 217-300-0143 for more information.

Source: Capital Programs at Facilities and Services. See

Deferred maintenance is the postponement of buildings and equipment upkeep due to a lack of funds. Maintenance and repairs are activities directed toward keeping fixed assets in an acceptable condition. Activities include preventive maintenance; replacement of parts, systems, or components; and other activities needed to preserve or maintain the asset. Maintenance and repairs, as distinguished from capital improvements, exclude activities directed towards expanding the capacity of an asset or otherwise upgrading it to serve needs different from, or significantly greater than, its current use. This item is not available by department.

Special note: The deferred maintenance program is currently in transition. The latest full campus facility assessment was conducted in 2001. Subsequent reassessments of 20% of campus buildings were conducted in 2002, 2004, and 2006. This data has been updated for inflation annually, but no adjustments for degradation have been made. Therefore, much of this assessment data is now considered outdated and of limited value. If a deficiency was identified in 2001 it would remain a deficiency until adequately addressed. However building systems that were considered adequate between 2001 and 2006 may have degraded markedly with no effect indicated on the deferred maintenance backlog.

A partial campus assessment (140 academic buildings) was conducted in 2013 of the Mechanical, Electrical and Plumbing (MEP) systems. An updated Facility Condition Assessment (FCA) for the University of Illinois Urbana-Champaign campus began in mid 2023 and will continue through late 2024. The contents of the report will be more readily available in 2025. This will update the deferred maintenance records and provide a new database for ongoing management. The current FCA is assessing 202 buildings. Until this report is complete and available, projects will continue to reference the existing information in the current database.

Please contact Cheryl Bicknell at for further information.

Source: Energy Utilization Office, Anthony Spurlock, Associate Director of Utilities, Budget Resources Planning. See
Note: Campus total only, and the total includes UA (university system) units located in Urbana. Does not include costs for rental space or off-campus space.
Note: Up to FY09, period covered was from October through September; starting FY10, the period covered is a fiscal year (July -July).
3580 Energy Utilization Index (000) Campus total energy usage for the fiscal year. Measured in thousands of British Thermal Units (BTU) per gross square foot per year Includes heating, cooling, and electrical costs converted to BTU.
3590 Utilities Expenses (000) Dollars spent on all utilities (steam, electricity, gas, chilled water, potable water, sewer) per year.


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