Iowa Administrative Code
Agency 193B - ARCHITECTURAL EXAMINING BOARD
Chapter 5 - EXCEPTIONS
Rule 193B-5.4 - Exceptions matrix

BUILDINGS NEW CONSTRUCTION

Building Use Type

Description

Architect Required

Architect May Not Be Required

Agricultural use

Including grain elevators and feed mills

X

Churches and accessory buildings whether attached or separate

One or two stories in height, up to a maximum of 2,000 square feet in gross floor area

X

Any number of stories in height, greater than 2,000 square feet in gross floor area

X

More than two stories in height

X

Commercial use

One story in height, up to a maximum of 10,000 square feet in gross floor area

X

One story in height, greater than 10,000 square feet in gross floor area

X

Two stories in height, up to a maximum of 6,000 square feet in gross floor area

X

Two stories in height, greater than 6,000 square feet of gross floor area

X

More than two stories in height

X

Detached residential use

One, two or three stories in height, containing 12 or fewer family dwelling units

X

More than 12 family dwelling units

X

More than three stories in height

X

Outbuildings in connection with detached residential buildings

X

Educational use

X

Hazardous use

X

Industrial use

X

Institutional use

X

Light industrial use

X

Places of assembly

X

Warehouse use

One story in height, up to a maximum of 10,000 square feet in gross floor area

X

One story in height, greater than 10,000 square feet in gross floor area

X

More than one story in height

X

Factory-built buildings

Any height and size, if certified by a professional engineer licensed under Iowa Code chapter 542B

X

One or two stories in height, up to a maximum of 20,000 square feet in gross floor area

X

One or two stories in height, greater than 20,000 square feet in gross floor area

X

More than two stories in height

X

More than 20,000 square feet in gross floor area

X

ALTERATIONS TO EXISTING BUILDINGS

Alteration Type

Description

Architect Required

Architect May Not Be Required

Structural alterations to exempt buildings

Modifications which change the structural members, means of egress, handicap accessible path, fire resistivity or other life safety concerns

X

Structural alterations to nonexempt buildings

Modifications which change the structural members, means of egress, handicap accessible path, fire resistivity or other life safety concerns

X

Nonstructural alteration

Which does not modify means of egress, handicap accessible path, fire resistivity or other life safety concerns

X

Which maintains the previous type of use

X

Nonstructural alteration which changes the use of the building from any other use to:

A place of assembly of people or public gathering

X

Educational use

X

Hazardous use

X

Residential use exempted

and is one, two or three stories in height and contains not more than 12 family dwelling units

X

Residential use not exempted otherwise

and is more than three stories in height

X

and containing more than 12 family dwelling units

X

Nonstructural alterations which change the use of the building from industrial or warehouse to:

Commercial or office use

and is one story in height and not greater than a maximum of 10,000 square feet in gross floor area

X

and is one story in height and greater than 10,000 square feet in gross floor area

X

and is two stories in height and not greater than a maximum of 6,000 square feet in gross floor area

X

and is two stories in height and greater than 6,000 square feet in gross floor area

X

and is more than two stories in height

X

and is greater than 10,000 square feet of gross floor area

X

Nonstructural alterations to:

Agricultural use

Including grain elevators and feed mills

X

Churches and accessory building uses

One or two stories in height, up to a maximum of 2,000 square feet in gross floor area

X

Any number of stories in height, greater than 2,000 square feet in gross floor area

X

More than two stories in height

X

Commercial use

One story in height, up to a maximum of 10,000 square feet in gross floor area

X

One story in height, greater than 10,000 square feet in gross floor area

X

Two stories in height, up to a maximum of 6,000 square feet in gross floor area

X

Two stories in height, greater than 6,000 square feet in gross floor area

X

More than two stories in height

X

Detached

residential

buildings

One, two or three stories in height, containing 12 or fewer family dwelling units

X

More than 12 family dwelling units

X

More than three stories in height

X

Outbuildings in connection with detached residential buildings

X

Educational use

X

Hazardous use

X

Industrial use

X

Institutional use

X

Light industrial use

X

Places of assembly

X

Warehouse use

One story in height, up to a maximum of 10,000 square feet in gross floor area

X

One story in height, greater than 10,000 square feet in gross floor area

X

More than one story in height

X

Factory-built buildings

Any height and size if entire building is certified by a professional engineer licensed under Iowa Code chapter 542B

X

One or two stories in height, up to a maximum of 20,000 square feet of gross floor area

X

One or two stories in height, greater than 20,000 square feet in gross floor area

X

More than two stories in height

X

More than 20,000 square feet in gross floor area

X