More than 30 percent of the 109 condominiums in the $300 million Pierce Boston tower have been pre-sold more than a year before its projected completion date.

Asking prices begin at $1 million for luxury condos in the 30-story complex at the corner of Boylston Street and Brookline Avenue in Boston’s Fenway neighborhood.

Designed by Arquitectonica with interiors by CBT, the neighborhood’s tallest complex has floor-to-ceiling windows on three sides and a private roof deck equipped with swimming pool, outdoor Jacuzzi, fire pits and sky cabanas available for purchase by owners.

The Collaborative Cos. of Boston is the exclusive sales and marketing agent. A sales center opened this week at 401 Park Drive.

“The Fenway’s edginess, combined with Pierce Boston’s striking design and amenities, has positioned us for faster success than we had even anticipated,” CEO Sue Hawkes said in a statement.

Samuels & Assoc. of Boston partnered with Chinese developer Landsea and Boston-based Weiner Ventures on the development, which includes 240 apartments and 20,000 square feet of ground-floor retail space. Completion is expected in 2018.

Samuels originally proposed an all-rental project with 319 units in a 22-story tower. It amended the plans to add the condos in a taller structure, citing rising cost estimates. Built on a 0.6-acre site, the project will include 42 on-site affordable units, a public plaza and art installation. J.P. Morgan provided $177 million in construction financing.