Please be advised that the office use for this property is conditional as it falls under a residential district, but the current use is an office. If the use of the property of an office is to continue, a Business Tax Receipt - BTR - before a year of the previous owner's BTR. Seller has ian active BTR 505.08. Abandonment of nonconforming uses. Whenever a nonconforming use has been discontinued for a period of one year, such use shall not thereafter be re-established, and any future use, shall be in conformity with the provisions of this LDR. For the purposes of this section, discontinued shall mean no occupational license is, or has been, active or paid for or no resident has lived in a dwelling unit.