An added slant would make it look similar to the Citigroup Center while also making it taller at the same time.
This is good news. Currently the upper half of the tower is a flat-topped box, and a tower of that height and prominence in the skyline needs to have an iconic design. The new tower must have some sort of crown and a sculpted shaft in order to be iconic, or at the least be architecturally notable.A2 Enhance the Skyline: Design the upper portion of the building to promote visual interest and variety in the downtown skyline. Respect existing landmarks while responding to the skyline’s present and planned profile.
In order to achieve the guidance provided in A1 above, the Board suggested that the applicant consider building higher and consider other departures, similar to the façade modulation (request # 1 in the booklet), which may enable the lower realms of the complex to have a clearer spatial organization.
The upper reaches of the proposed tower have proportions roughly similar to Rainier Tower, square in plan, with a blunt or flat roof. While the architect conveyed the intention of relating the two towers by this similarity of form, the Board members indicated an interest in a more dramatic shape or expression on the skyline. Seattle towers over 40 floors all possess sculpted shafts and/or interestingly shaped tops.