Where the four-unit line falls
Under 25 TAC 296.1(c), the state rules do not apply to a single private residence or a single apartment building with no more than four dwelling units. So a fourplex being renovated as a fourplex sits outside the state survey and notification steps, while a building with a fifth unit is inside them.
Two situations pull small buildings back in: the multi-building installation rule above, and demolition of a small residential building together with other building types as part of a larger project. This is general information, not legal advice; confirm your building’s status with DSHS.
For offices and shops in a mixed-use building, see commercial finish-out abatement. All services are on the Plano Asbestos Removal homepage.