How it Works
111 East Grand’s mass timber strategy has yielded several benefits. It is technically a hybrid system, relying on a precast concrete service core to buttress against lateral forces while housing the stairs, elevators, mechanical shafts, and utilities.
Off-site fabrication paid off during construction, minimizing disturbance, crew size, and the cost of operating during one of the worst Iowa winter in years.
Mass timber brings substantial environmental benefits. 1,180 cubic meters of timber was used throughout the building structure. That’s 284 tons of sequestered carbon and 1,042 tons of sequestered CO2. To translate to experience, our impact would be the same as 170 cars being kept off the road for a year, or the energy of operating 75 single family houses in a year.
The wood’s refined aesthetics enable it to remain exposed as an interior finish. This minimizes tenant improvement work (like dropped ceilings and column wraps) while enriching occupants’ visual, tactile, and olfactive experience. Each tenant floor is provided with restrooms, a shower room, and locker rooms to promote walking and biking. Operable windows allow natural ventilation and balconies on the west take advantage of impressive views of downtown.
The lasting benefits of carbon sequestration and biophilia will contribute to occupant health and provide a sustainable long-term work environment.
Owner: 111 East Grand, LLC
2022 Green Good Design Global Sustainability Award
2021 American Architecture Award
2021 AIA Iowa Craft Award (Honor)
2019 AIA Iowa Design Award (Honor)
2019 AIA Central States Design Award (Honor)