(1) As used in this section:
(a) "Allowable feature" means:
(i) a landing or walkout porch that:
(A) is no more than 32 square feet in size; and
(B) is used for ingress to and egress from the rear of the residential dwelling; or
(ii) a window well.
(b) "Landing" means an uncovered, above-ground platform, with or without stairs, connected to the rear of a residential dwelling.
(c) "Setback" means the required distance between the property line of a lot or parcel and the location where a structure is allowed to be placed under an adopted land use regulation.
(d) "Walkout porch" means an uncovered platform that is on the ground and connected to the rear of a residential dwelling.
(e) "Window well" means a recess in the ground around a residential dwelling to allow for ingress and egress through a window installed in a basement that is fully or partially below ground.
(2) A county may not enact or enforce an ordinance, resolution, or policy that prohibits or has the effect of prohibiting an allowable feature within the rear setback of a residential building lot or parcel.
(3) Subsection (2) does not apply to a historic district located within the unincorporated area of a county.