"NEW SECTION.  Sec. 1   The legislature enacts this act to overrule the Washington supreme court decision in Vern J. Oja and Assoc. v. Washington Park Towers, Inc., 89 Wn.2d 72, 569 P.2d 1141 (1977), which held that claims for damage to real property resulting from construction activities on adjacent property do not accrue until the construction project on the adjacent property is complete.

NEW SECTION.  Sec. 2   A new section is added to chapter 4.16 RCW to read as follows:
     (1) Except as provided in subsection (2) of this section, actions for damage to real property resulting from construction, alteration, or repair on an adjacent property, whether alleging negligence, strict liability, trespass, or any other cause of action, must be commenced within three years after the property owner first discovered or reasonably should have discovered the damage.
     (2) Actions for such damage that (a) is known or reasonably should have been known as of the effective date of this section and (b) is caused by a construction, alteration, or repair project that is not complete as of the effective date of this section must be commenced within three years of the effective date of this section.
     (3) Nothing in this section may be construed as extending the period for bringing a claim beyond the periods provided in RCW 4.16.300, 4.16.310, and 4.16.320."