Forty-two condominium apartments are nearing completion on a hilltop in north Arlington overlooking the Iwo Jima monument.

The Weslie, a 10 story building project of Weissberg Development Corp. of Rosslyn, was designed by Salditt, Lipp & Helbing. There are split-level and two-story duplex units on all floors but the first.

Entrances to the large condominiums are on the first, third, sixth and ninth floors.Residents will walk up or down to their living areas from the entrances.

Marvin Weissberg, president of the company, said that living space will range from 1,700 to 2,500 square feet, bigger than the average single-family house being built today. Each condo living room will have a 14-foot ceiling and have a floor-to-ceiling glass view wall facing the monument area of the District.

Curving wood stairways used inside the apartments were purchased from a New England firm for $5,000 each, Weissberg said.

Shannon & Luchs will start selling the units soon. Prices are likely to range from $200,000 to $350,000, Weissberg said.

A model apartment will open on one of the upper floors within 60 days. The first tenants are expected to begin moving in next spring.

The first floor of the Weslie building will have only one single-level apartment. It will not have a view of the city.The building has underground parking space.

Located at 14th and Oak streets, the Weslie is near Prospect House, another apartment with floor-to-ceiling river views and two-level apartments. Prospect House was purchased recently by a development firm that is converting it to condominium ownership.

The weissberg firm also is the developer of the 55-unit Flour Mill condominium on the Georgetown waterfront at 33rd Street and the C&O Canal. cSome of the purchasers of those high-priced apartments have already moved in.