Okla. Stat. tit. 19, § 19-866.15: Enforcement of building line regulations - Appeals -

Modification.

After the council or board shall have established building or

setback lines on such major highways, no new building or structure

shall be erected within such building or setback lines in the area

and no permit for such building shall be issued by the city building

inspector as respects the territory over which the municipality

shall have enforcement jurisdiction or by the county inspecting

officer appointed by the board to administer and enforce building

line and setback regulations and other regulations for the county,

as respects the territory over which the county shall have

enforcement jurisdiction. The city board of adjustment, as respects

the territory over which the municipality shall have enforcement

jurisdiction, and the county board of adjustment as respects the

territory over which the county shall have enforcement jurisdiction,

shall hear appeals of any property owner aggrieved by such building

line and setback regulations. Each said board of adjustment shall

have the power to modify or vary the building line or setback

regulations in specific cases, in order that unwarranted hardship,

which constitutes an unreasonable deprivation of uses as

distinguished from a mere grant of privilege, may be avoided, the

intended purpose of the regulations strictly observed, and the

public welfare and public safety protected.