This accident happened about just before 6 o'clock Tuesday night at Pecos and Missouri.
Police say a red Chevy car didn't yield at the intersection and smashed into a black Tahoe.
That forced the two vehicles to crash through the street signs and into the Hillard office building.
Officers say the crash did a lot of damage to the building, smashing several windows.
The driver of the car was taken to the hospital and will be given a ticket for failure to yield right of way.