Residential Building Inspector B1General Administration, Legal, and EnforcementHard
A residential building inspector receives a complaint that a homeowner is converting their garage into a living space without a permit. Upon inspection, the inspector confirms the unpermitted conversion, which includes new insulation, drywall, and plumbing rough-ins. According to the 2021 IRC, what defines this type of work as requiring a permit?
- AAny work that alters the structural components of the building.
- BAny alteration that affects the means of egress, light and ventilation, or increases the conditioned area of the dwelling.
- CAny work costing more than a locally determined monetary threshold.
- DAny change to the exterior appearance of the structure.
Show answer & explanationAnswer & explanation
Correct answer: B. Any alteration that affects the means of egress, light and ventilation, or increases the conditioned area of the dwelling.
Conversions of garages to living spaces typically involve changes that significantly affect the dwelling's light and ventilation, means of egress, and often increase the conditioned floor area, all of which are explicitly listed in IRC Section R105.1 as requiring a permit.
Why the other options are wrong
- A. While structural alterations require permits, many non-structural alterations also require them, especially those affecting life safety.
- C. Monetary thresholds for permits are typically local amendments and not the primary IRC driver for such conversions.
- D. Changes to exterior appearance alone may not always require a permit, unless part of a larger alteration.
Work Requiring a Permit (IRC R105.1)
Specific types of construction, alteration, repair, or demolition work that necessitate obtaining a permit from the building official to ensure compliance with code.
- Includes construction, alteration, repair, demolition, or moving of a building.
- Covers changes to means of egress, light, ventilation, and conditioned area.
- Ensures public safety, health, and welfare.
Memory trick: Permits for Major Changes: Egress, Light, Air, and More Space, Clear!