On page 2, line 11, after "(5)" insert "Authorization for the development of duplexes, triplexes, quadplexes, sixplexes, stacked flats, townhouses, and courtyard apartments in areas zoned for detached single-family residential use may not be considered as contributing to the overall underlying density within the urban growth area boundary for purposes of compliance with this chapter.
(6) Any action taken by a city or county to comply with the requirements of this section is not subject to legal challenge under this chapter or chapter
43.21C RCW.
(7)"