Sequim, Washington is located on the Olympic Peninsula, approximately two hours (by car and car ferry) from Seattle.
General location of Sequim in the State of Washington

Highland Hills is to the south of Sequim. It is bounded on several sides by Sequim and the Sequim Urban Growth Area.
Highland Hills relative to Sequim

Map of Sequim and Sequim Urban Growth Area

With the exception of a few smaller “grandfathered” lots, the minimum Highland Hills lot size is one acre. As of February 2014, approximately 219 homes had been built here and approximately 124 lots had not yet been developed.
Map of Lots