A city commission has unanimously adopted plans to renovate West Washington and Mifflin Street areas over the next 25 years.

After several revisions, the Urban Design Commission passed a proposal Wednesday evening pertaining to the Downtown Plan. According to commission member Melissa Huggins, the proposal supports plans of higher-density developments.

“I would like to see the density increased on West Mifflin Street,” Huggins said. “Overall, my goal for this area is to really create both a density and height standpoint with as much flexibility as possible [for maximum density].”

Heights of six to eight stories were decided as appropriate for future developments on Mifflin Street and the surrounding area.

The proposal also includes buildings intended for mixed use in the Mifflin Street area, with space for both residential and retail units. Mixed-use in the neighborhood would better reflect the future character of the district, according to a report by UDC.

While UDC still encouraged residential units for the neighborhood, retail and other space uses were recommended as well, the report said.

UDC also addressed West Washington Street and the traditional three-story and four-story houses that reside there. Members agreed while residential developments other than houses may be appropriate for the area, several existing “grander” houses need not be replaced.

Members also discussed whether potential developments on West Washington Street should reflect the current character or if they should be constructed with more contemporary designs in mind.

“We need to determine how important the existing character is and when things come in that are new, if they need to complement that or compete with it,” UDC Chair Dick Wagner said of West Washington Street.

According to Downtown Plan Principal Planner Bill Fruhling, 14 city committees have reviewed the plans to renovate the downtown area, often taking multiple meetings to fully consider the plans.

He said the plan is going to be very important for the years to come.

“Everybody understands the importance of this plan over the next 20 years,” Fruhling said. “They want to make sure they put forward the best recommendations for the future.”

All 14 committees will formally submit their recommendations to the Plan Commission, which will compile the recommendations and present them to City Council for a final vote.