Declares an intent to make housing more affordable for first-time home buyers in counties where housing is currently not affordable for first-time home buyers. The legislature intends to do this by allowing single-family detached residential development to be placed outside of urban growth boundaries at density levels currently prohibited under the prevailing interpretation of the growth management act. These single-family detached homes could be placed outside of urban growth boundaries in counties where the first-time buyer housing affordability index demonstrates that housing is not affordable for first-time home buyers.