As planning continues for the Edgartown Library expansion project, the town is now set to consider the sale of the Warren House, purchased five years ago with an eye toward converting it to a library annex.

A special town meeting article was discussed at Monday’s meeting of the Edgartown selectmen for funds to pay for an appraisal in anticipation of the sale. A second article will allow the town to accept grant money for the library project.

The special town meeting is set for Oct. 28.

The library expansion project has proceeded in fits and starts over the past five years. Town voters backed initial expansion plans: the Warren House was purchased at a cost of $3.5 million, a foundation was formed to raise private funds for the project and an application filed for state grant money. But last February when library trustees learned that the cost of the project had climbed above $15 million, town leaders decided to go back to the drawing board. A new library planning committee was formed, headed by Chris Scott, an Edgartown resident and executive director of the Martha’s Vineyard Preservation Trust.

New information is coming in every day, Mr. Scott said this week. “The process is heading to some degree of clarity,” he said. More discussion is expected at a meeting of the committee on Monday.