When property has been granted special valuation as historic property, the special valuation shall continue until the property is disqualified or removed by the assessor upon:

(1) Expiration of the ten-year special valuation period;

(2) Notice by the owner to remove the special valuation;

(3) Sale or transfer to an ownership making it exempt from taxation;

(4) Sale or transfer of the property through the exercise of the power of eminent domain;

(5) Sale or transfer to a new owner; and

(a) The property no longer qualifies as historic property; or

(b) The new owner does not sign the notice of compliance contained on the real estate excise tax affidavit;

(6) Determination by the board that the property no longer qualifies as historic property; or

(7) Determination by the board and notice to the assessor that the owner has failed to comply with the conditions established under RCW 84.26.050, chapter 254-20 WAC or the agreement.