Traffic, street parking, drainage and loss of the community’s character were among the issues raised by neighbors at a public meeting Wednesday about the proposed Skyline Honolulu condominium on the slopes of Punchbowl crater.

Planned is a four-story, 110-unit condominium complex on 1.6 acres fronting Prospect Street. The area includes the section directly above Nehoa Street.

The project has all necessary zoning approvals but needs a special permit because it is within the Punchbowl Special Design District. The public has until Oct. 7 to submit written testimony. City Planning Director George Atta has until Nov. 3 to act on the request.

Fred Kooker, who lives at Prospect Park just east of the project, said he and many of his neighbors don’t oppose development of the 12 lots that make up Skyline Honolulu, or even the notion of the developer making a profit.

But new projects in the area should “add to the appearance of the neighborhood, not detract from it … lower our on-street parking density, not add to it, and improve neighborhood property values, not detract from it,” Kooker said.

The developers have claimed they are reducing the number of driveways fronting Prospect to two from six, he said, but it’s misleading to suggest that would reduce traffic when they are proposing many more residences with many more vehicles.

Susan Lai Young said the right development on the site could actually improve the neighborhood but the project as now proposed is too large.

The longtime Prospect Street resident said even if the developers have agreed to abide by all legal requirements, they should be focused on the spirit of the district. “They are coming into a neighborhood that has been established for a number of years.”

Diane Chong, who lives on Nehoa Street, said Prospect Street traffic is so bad during rush-hour periods that she will take the long way — behind Punchbowl and through Papakolea — to get to work downtown rather drive through the Prospect Street neighborhood.

Susan Andrade, who also lives directly across from the project, said she worries how the altered terrain caused by the large development will affect water runoff during heavy storms.

“A natural cliff has been there for many, many years,” said Andrade, who added that she understands that the cliff is to be cut back. Noting that she lives on the first floor of her building, she said “I don’t want the water and the mud inside my house.”

Project planner Tom Schnell, of PBR Hawaii, said there will be no pile-driving during construction, although there will be excavation. A geotechnical engineer is helping to address soil stability. Two on-site retention basins are expected to capture additional runoff.

Some neighbors questioned where construction workers will park their vehicles while the project is underway, given how tight the existing street-parking situation already is. Schnell said the first-level parking lot will be built first, and the workers will be able to park their own vehicles there as the project proceeds.

The developer has agreed to widen Prospect Street and the sidewalk in the area. A blind spot on the Diamond Head side of the parcel will be less of a hazard as a result, Schnell said.

The plan calls for 150 resident stalls and 11 guest spaces.

Of the 110 proposed units, 14 are studio, 64 are one-bedroom, 31 are two-bedroom and one is a four-bedroom.