ALPHARETTA — The design team working on Alpharetta’s City Center project has proposed two changes that may please residents who want to see more greenspace on the site.

The first change involves shifting a road to the west, at the bottom of the large park area. This shift will bring the size of the park to just over five acres — staying in line with the five-acre park described in the original site plan presented before residents approved a bond referendum to pay for the project.

Michael Swartz, the project’s architect, has also proposed repositioning the parking deck.

A source of concern for some residents since the downtown development plan was proposed, the 400-space parking deck has been presented as being positioned from west to east, parallel to the Publix supermarket.

But the new proposal orients the parking deck from north to south behind Publix.

Swartz said this positioning will allow the city to preserve a large oak tree that was set to be taken down.

Swartz said the four-story deck will be easy to disguise and will not fully be seen by passersby.

“Grade really works to our advantage on this site,” he said of the future City Center location.

Swartz said his team looked at repositioning the future City Hall building to where it is no longer sitting on the park site, but said he does not recommend moving it anywhere else.

During the public input portion of the meeting, where only two residents spoke, a question was raised about the proposed roundabout on Haynes Bridge Road.

Public-works director Pete Sewczwicz assured residents that the roundabout is being designed with one lane going into the traffic circle and one lane coming back out — not one lane going in and two coming out.

On Sept. 10, City Council members are expected to vote on the proposed changes.