The Zoning Board of Appeal today un-did its denial last week of an investor's request to let him sell eight condos on Webster Street in East Boston because the "public notice" for that hearing referred to supposed violations of article 68 of the Boston zoning code, which covers South Boston, rather than article 53, which covers East Boston.

The board scheduled a new hearing on the proposal for Jan. 28 at which investor Patrick Cardon's new lawyer, Richard Lynds, can argue why the board should overlook changes to 160 Webster St.'s roof deck and elevator headhouse made by the building's original developer and give Cardon, who bought the unoccupied building at foreclosure last year the approval he needs for a certificate of occupancy.

Among other things, that might end the problem he now faces because he sold one of the units in the building earlier this month.

Cardon was represented at last week's hearing by James Christopher, who works for a Braintree architectural firm and who is not a lawyer.

Following the hearing, Cardon hired Lynds, an East Boston lawyer who specializes in East Boston zoning cases.

Lynds told the board today that the mistake in the public notice was serious enough to warrant a whole new hearing.

After hearing from Jeff Hampton, a planner with the Boston Planning Department, that he agreed with Lynds, the board voted unanimously to reconsider the whole case.