Occasionally an individual developer can make a significant impact on a neighborhood.

William Zeckendorf Jr., for example, pioneered the redevelopment of the Union Square area with his four-towered Zeckendorf Towers, the westward expansion of midtown with his World Wide Plaza at Eighth Avenue and 50th Street, and the northward gentrification of the Upper West Side with his Columbia apartment tower at Broadway and 96th Street.

The Related Companies have been one of the citys most active developers in recent years, and the projects have included the twin-towered Time-Warner Center on Columbus Circle.

While many of the projects have been rather conservative in design, they ventured to create an important gateway to East Harlem at The Monterey, a rental apartment building at 175 East 96th Street that is noted for its huge, curved corner faade at Third Avenue and its very large and handsome mid-block garden on 96th Street.

In their great book, "The A. I. A. Guide to New York City, Fourth Edition," (Three Rivers Press, 2000), Norval White and Elliot Wilensky observed that the garden, designed by Weintraub & di Domenico was "French formalism compressed into this urban landscape," adding that "The building built it to gain zoning credits and hence more floors. The payback to the neighborhood is substantial (usually not the case with zoning bonuses.)"

The Monterey is directly across Third Avenue from the Islamic Cultural Center at 201 East 96th Street that was designed in 1991 by Skidmore, Owings & Merrill and whose minaret was designed by Swanke Hayden Connell. The handsome mosque is oriented toward Mecca.

This huge tower, whose address is 215 East 96th Street, reinforces the neighborhood and the Monterey.

The Related Companies broke ground for the 41-story tower, which is known as One Carnegie Hill in 2004 and it was topped out in the summer of 2005.

Related acquired a 99-year ground lease from the Islamic Cultural Center of New York and has incorporated a 63,000-square foot community facility for the Islamic Cultural Center in the new building. The community facility has its own entrance on 97th Street.

Relateds tower, which is the tallest on East 96th Street, has 479 apartments of which 200 are cooperative units with condominium rules, which are known as "condops." They start at the 23rd floor while the rental apartments are below.

Both the rental and "condop" units share a common lobby, which is unusual. There are separate elevator banks, however, for the rentals and the condops.

HLW International is the architect for the new tower and Ismael Leyva is the designer of the interiors and David Rockwell is the designer of the lobby and amenity floors.

The building has a health club, a 50-foot lap pool with two skylights, a yoga studio, a landscaped terrace area for residents with barbecues, a business center, a pet spa, a childrens playroom as well as a rooftop entertainment lounge and sun terrace, a garage, storage space and a bicycle room.

A one-bedroom, south-facing apartment on the 41st floor with 701 square feet was priced initially at $750,000 and a one-bedroom, south-facing apartment on the 31st floor with 679 square feet and a terrace of 475 square feet was priced initially at $900,000. A two-bedroom apartment facing south and east with 1,033 square feet on the 28th floor was priced initially at $1,280,000 and a two-bedroom apartment facing north and east on the 37th floor with 1,513 square feet was priced initially at $1,900,000. A three-bedroom apartment facing north and east with three baths and 1,704 square feet on the 41st floor was priced initially at $2,235,000.

For decades, 96th Street was the traditional northern boundary of the Upper East Side, but Relateds two projects on the block as well as the Milstein large apartment complex on the south side of 96th Street were influential in encouraging new development projects north of 96th Street in East Harlem.

One Carnegie Hill is about equidistant from Central Park to the west and the entrances to the FDR Drive along the East River to the east. It is one block west of a subway station and is convenient to the Carnegie Hill neighborhood and its many schools and cultural institutions.

Apartments have floor-to-ceiling windows and individually controlled heating and air-conditioning. Kitchens have stainless steel Kitchen Aid appliances, Kohler sinks, Luca de Luna granite countertops and Australian walnut wood cabinetry. Bathrooms have Botticino Fiorito marble floors and vanities and marble wall tiles.