Marketing has begun for the 11-story residential condominium building at 245 Tenth Avenue adjacent to the High Line Park in Chelsea.

The building will have distinctive facades of randomly stamped stainless steel panels with a faceted diamond pattern and tinted, fritted and clear glass and the basic plan of the building is of two rectangles that are perpendicular to one another but share a small part of an edge of each.

The building's unusual window patterns will be somewhat like a crossword puzzle and the panelized system of semi-reflective stainless steel are designed to appear like the graduated shades of gray within clouds, conjuring, according to Della Valle Bernheimer, the project's architects, abstract images of steam clouds from locomotives that used to run on the High Line.

Grasso Holdings, whose other projects in the city include 50 Pine Street and 124 West 24th Street, is the developer of the 20-unit project.

The architectural form of 245 Tenth Avenue, however, is further complicated by the fact that the building bulges outward at a slight angle near its base.

The building will have a full-time doorman, a residents' terrace and lounge overlooking the High Line, private basement storage, and Abigail Michaels concierge service.

Apartments will have recessed track lighting on exposed concrete ceilings, keyed entry/elevator access, 9-foot-8-inch-high ceilings, ebonized oak flooring, individual air-conditioning, Lualdi frameless doors of ebonized oak and lacquer with stainless steel hardware, building-wide chilled water, stainless steel radiator covers, and Bosch washers and dryers.

Kitchens will have recessed lighting, stainless steel countertops, RIFRA fixtures and cabinetry designed by Della Valle Bernheimer, Sub-Zero refrigerators, Thermador ovens and cooktops, and Bosch dishwashers.

Bathrooms will have Inca grey slab flooring and tiles in showers, radiant floor heating, Toto commodes, RIFRA fixtures, and Corian tubs.

The two penthouse units will have wood-burning fireplaces, 10-foot-6-inch-high ceilings, double Thermador ovens, Gaggenau cooktops, Ipe wood decking, private outdoor showers and Sub-Zero Refrigerators. One will have 1,450 square feet of exterior space and the other 1,850.

The building is expected to be ready for occupancy in the summer of 2008.