The tower could be built between the two buildings, eliminating driveway access from East Franklin Street to the parking lot under City Hall.
Or the tower could be built over the driveway, connecting the second and third floors of both buildings. This option would infringe on space at Spickler's Farm Market and close some windows in Council Chambers, Andreve said.
The grocery store will be moved to the other side of the Roslyn building, he said.
Council members will vote whether to approve low bidder Morin-Rocco Inc., of Hagerstown, for the architectural design contract at their 7 p.m. regular meeting on Tuesday, Jan. 27, Andreve said. The firm bid $40,300.
Councilwoman Susan Saum-Wicklein said Tuesday she would abstain from that vote because her real estate partnership is in litigation with Morin-Rocco.
In the firm's bid proposal, Morin-Rocco officials said they have another alternative for the elevator and stair tower that wouldn't call for blocking the driveway and would save architectural features of City Hall, Andreve said. They didn't elaborate.
The total cost of the renovation project won't be determined until the architectural firm completes the design, Andreve said.
The first phase of the Roslyn building renovation also calls for the first floor to be ready for occupancy in May and June.
The city's Home Store would open in 21 and 23 E. Franklin St. in mid-May, Andreve said. The store would be a nonprofit operation aimed at promoting homeownership in the city.
Spickler's new home at 25 E. Franklin St. is scheduled to be ready by June 1. Another retail space at 17 E. Franklin St., where Spickler's is now, would be ready as well. A tenant for that space hasn't been determined yet, Andreve said.
The firm hired also will study space in the two buildings to determine how it can best be used, Andreve said.
For the two buildings to be connected and the lobby expanded, the data processing department on the first floor of City Hall will have to move, he said.
The second and third floors of the Roslyn building also require renovation.
The Department of Community Development and another city department will eventually move into the second floor, Andreve said.
The third floor could be used to expand City Hall or provide office space for another group or business, he said.
City Hall's fifth floor is used for storage since the elevator only reaches the fourth floor.