GLA rules · 4 min read

Does a Utility Room Count as Square Footage (GLA)?

It depends on where the utility room is and how it is finished. A main-floor laundry room with drywall, flooring, and heat counts as GLA. An unfinished mechanical room in the basement with concrete walls and exposed pipes does not. The distinction comes down to ANSI Z765-2021, the standard licensed appraisers follow.

The ANSI Z765 GLA checklist

For any room to count as Gross Living Area, it must meet all five criteria:

• Above grade — the finished floor must be at or above exterior ground level on all sides.
• Fully enclosed — permanent walls on all sides, not just a partition or curtain.
• Heated — connected to the home's heating system (forced air, radiant, mini-split, etc.).
• Finished — walls, floor, and ceiling finished to a typical residential standard.
• Adequate ceiling height — at least 7 feet, or for sloped ceilings, at least half the floor area must meet the 7-foot threshold.

A utility room that checks all five boxes counts as GLA. Miss any one of them and it does not.

Common utility room scenarios

The finished vs. unfinished distinction

"Finished" means finished to a typical residential standard. That generally means:

• Walls: drywall, plaster, paneling, or similar — not bare framing or exposed concrete block
• Floors: tile, vinyl, hardwood, laminate, or similar — not bare concrete slab
• Ceiling: drywall, plaster, drop ceiling, or finished surface — not exposed joists or ductwork

A utility room with bare concrete walls, a concrete floor, and exposed ceiling joists fails the finished test regardless of where it is located. A laundry room with painted drywall, vinyl flooring, and a finished ceiling meets the standard.

Below-grade utility rooms

If the utility room is in a basement where any side is below grade, it does not count as GLA under ANSI Z765-2021 — even if it is fully finished. Below-grade finished areas (BGFA) are reported separately and valued differently from GLA.

The exception is a walk-out basement where all four sides of the utility room are at or above exterior ground level. In that case, the room may qualify as above-grade and count toward GLA, but this requires appraiser judgment and verification of the grade level on all sides.

How appraisers handle utility rooms

Licensed appraisers do not call out utility rooms separately on the sketch — they are simply included in the exterior perimeter measurement like any other room. If a utility room qualifies as GLA, it is part of the GLA total. If it does not (basement, unfinished), it is either excluded or reported as below-grade finished area.

The more common issue is sellers or agents who include an unfinished mechanical room in their advertised square footage. Appraisers will catch this and remove it, which can cause a square footage discrepancy between the listing and the appraisal report.

Measuring utility rooms in PlanSnapper

When tracing your floor plan in PlanSnapper, utility rooms that qualify as GLA are included in the main polygon automatically as part of the exterior perimeter trace. You do not need to call them out separately.

If a utility room does not qualify (basement, unfinished), trace it in a separate polygon and label it as non-GLA. PlanSnapper supports multiple polygons per project, so you can measure and record both areas in the same session.

Related articles

• What counts as GLA?
• Finished basement GLA rules
• Below-grade finished area reporting
• Above grade vs. below grade: what it means for GLA
• GLA vs. total finished area
• What counts as square footage in a house
• GLA vs Total Square Footage: What Is the Difference?
• ANSI Z765 vs BOMA: Square Footage Standards Compared