Block Hall, the 7-story Tudor-style building at 21-23 South William Street between Coenties Slip and Mill Lane in the Financial District has been converted to 31 condominium apartments by James Kennelly and Charles McInnis of the Kennelly Development Company and Keith and Kevin DeMatteis of the DeMatteis International Group.

The building was designed in 1927 by William Neil Smith as a private club and at one time was occupied partially by the Italian Alps Restaurant.

The building is on a handsome street that also houses the very impressive Banca Commerciale Italiana Building and the Wall Street Inn. It is also on the same street as another building design by Smith, in neo-Gothic style, at 9-11 South William Street for William H. McGee & Company, a marine insurer, in 1929. Smith also designed the Nederlander Theater on West 41st Street.

This building also fronts on Stone Street, an official historic landmark district of 19th Century buildings, many of which house restaurants and caf?

This building is described in Elliot Willensky and Norval White's fine book, "The A. I. A. Guide to New York City, Fourth Edition," (Three Rivers Press, 2000), as "ornate, mock half-timbering here providing another cultural stage set for its original club members."

When completed, the building will have a rooftop garden, a doorman and a fitness center. Its apartments will have ceilings about 10 feet high, marble baths, Sonoquil soundproofing systems, individual thermostat-controlled heating and air-conditioning units, and Viking ranges, Miele dishwashers, Liebherr refrigerators, cherry cabinetry.

Apartments range in size from 452-square-foot studios to one-bedroom units with 697 to 883 square feet to a three-bedroom penthouse with 2,019 square feet.

Initial pricing ranges from about $509,000 to $830,000 for the studio and one-bedroom units and about $3.3 million for the penthouse.

Occupancy is scheduled for next January.

Doug Korves of LSGS Architects has designed the conversion.

The building was acquired in early 2004 for about $4.5 million by the Kennelly Development Company from the Block Hall Development Company. The 25,000-sq. ft. building had been owned since 1967 by John Herzog, who in 1988 founded the Museum of American Financial History.