SeaTac lawmakers will find out Nov. 6 the potential cost of annexing Boulevard Park.
Berke and Associates will present their study at the council's regular 6 p.m. meeting at city hall.
The consulting firm completed a similar feasibility study for Burien. The Burien study covered costs for annexing the entire North Highline unincorporated area.
Seattle has also expressed interest in annexing North Highline.
The SeaTac study will only look at the area from Des Moines Memorial Drive South to the Tukwila city limits between South 128th Street and South 116th Street.
If council members decide to pursue possible annexation, they will add it to the city's comprehensive plan.
The council is scheduled to decide on plan amendments at their Nov. 27 meeting. The amendments must be finalized by the end of the year.
If SeaTac lawmakers decide they want to annex the area, Boulevard Park residents would vote on whether they want to join the city.
Annexation cost estimates will differ from Burien's because SeaTac has its own fire department while Burien is covered by King County fire districts.
Both cities receive police services from the King County Sheriff's Office.
In other business, council members accepted a $75,000 grant from the state Ecology Department to help it meet national stormwater permit requirements.
SeaTac is among 35 cities that filed an appeal of their permit. City officials maintained some of the requirements were too burdensome.
"This grant will give us a plan of attack to make sure we can meet the requirements," Councilman Don DeHan noted.
Council members also heard from residents involved in the city's first "Bloom Where You Are Planted" neighborhood grant project.
Residents from the Village at Angle Lake senior apartment complex and students from Chinook Middle School planted a garden at the neighboring Lutheran human services building. The garden yielded 70 pounds of produce this year.