BNIM

Des Moines, Iowa

Located on a six-acre site that was once moldering landfill in Des Moines, a new complex for the Iowa Utilities Board and Office of Consumer Advocate is defying notions about what civic buildings look like, one sunlit, sustainably designed office at a time. This was all part of the two state agencies' plan to become models of energy efficiency and educate the community at large. The Des Moines office of Kansas City, Missouri'based BNIM was hired to accomplish these goals. 'Our general design philosophy is 'resolve, rigor, and restraint,' ' explains project architect Carey Nagle, describing the approach the firm took for this building, which came with a tight budget.

The result of BNIM's judicious strategy is a 44,700-square-foot building comprising two wings joined by a central lobby. The north wing, the larger of the two, contains the offices of the Iowa Utilities Board; the Office of Consumer Advocate occupies the south wing. BNIM designed the building to achieve an energy savings of 60 percent over the region's code baseline requirements and for optimum user comfort: the precast-concrete panels cladding the building are punctuated by large windows that allow daylight in and views out. Long and low, the office building has a quiet aesthetic that is meant to respect the older buildings in the nearby capitol complex, all while presenting a modest face for the agencies. 'We tried to meet the client's needs simply, with sustainable and traditional design,' explains Nagle.

For employees of the utilities board, the benefits are quantifiable: 98 percent of spaces have access to views and daylight, and 100 percent of occupants can get to a manually controlled window to let air in. The building's smart green systems have also made a mark: after two operational years, the annual energy savings amounts to nearly $42,000. At this rate, the utilities board will recoup its investment in these sustainable measures in less than four years. 'And we've heard that the building has greatly facilitated collaboration,' says Nagle. 'Folks don't see themselves as working individually anymore.'

Architect:
BNIM
317 6th Avenue 
Des Moines, IA 50309
515-974-6462
816-783-1501

Completion Date: April 2011

Gross square footage: 44,700 square feet

Total construction cost: $10.1 million

People

Owner: State of Iowa

Architect:
BNIM
317 6th Avenue 
Des Moines, IA 50309
515-974-6462
816-783-1501

Personnel in architect's firm who should receive special credit:
Principal in Charge: Rod Kruse
Project Architect: Carey Nagle
Project manager: Tom Hilton

Architect of record: BNIM

Interior designer: BNIM

Consultant(s):
Mechanical engineer: KJWW Engineers
Structural engineer: Charles Saul Engineering
Electrical engineer: KJWW Engineers
Civil engineer: Snyder and Associates
Geotechnical engineer: Team Services

Landscape: BNIM

Lighting: KJWW engineers

General contractor: J .P. Cullen 

Photographer(s): Farshid Assassi, Mike Sinclair

Renderer(s): BNIM

CAD system, project management, or other software used: Revit

 

Products

Structural system
steel - central western fabricators www.centralwestern.net/
epic deck www.epicmetals.com/
Vulcraft joists www.vulcraft.com/

Exterior cladding:
 -exterior precast with Thermomass system
-VM Zinc, Quart Zinc

Roofing:
Firestone UltraPly TPO
www.firestonebpco.com/default.aspx

Windows/Curtainwall:
Wausau entrance systems
www.wausauwindow.com/

Glazing:
Oldcastle BuildingEnvelope
www.oldcastle.com/index.php

Doors
Entrances:
Wausau storefront
www.wausauwindow.com/

Metal doors (aluminum framed glass doors):
Wausau entrance systems

Wood doors:
eggers doors
www.eggersindustries.com/

Upswinging doors, other: SkyFold Classic by SkyFold

Hardware
Locksets:Sargent

Pulls:Rockwood, Sargent

Interior finishes
Acoustical ceilings: Hunter Douglas techstyle,
www.hunterdouglascontract.com/home/index.jsp

Wall technology's New Dimensions panels
www.walltechnology.com/index.aspx

Millwork:
RCS Millwork
L.C. rcsmillwork.com/

Paints and stains:
Sherwin-Williams  
www.sherwin-williams.com/

Solid surfacing: Corian

Special surfacing: Flooring: ground and polished concrete by Retroplate www.retroplatesystem.com/

Floor and wall tile: Dal Tile 1”x1” Keystones (restroom walls)

Carpet:
Interface
www.interfaceglobal.com/Products/Interface.aspx

Furnishings
Office furniture: Herman miller, www.hermanmiller.com/english.html

Reception furniture: Herman miller, www.hermanmiller.com/english.html

Chairs: Allsteel www.allsteeloffice.com/

Tables: Bernhardt www.bernhardtdesign.com/
www.keilhauer.com/

Lighting
Interior ambient lighting: architectural lighting works www.archltgworks.com/content/products/

Downlights: architectural lighting works www.archltgworks.com/content/products/
De Ray Lighting

Task lighting: Herman miller, www.hermanmiller.com/english.html

Dimming System or other lighting controls: Johnson Controls www.johnsoncontrols.com/content/us/en.html

Conveyance
Elevators/Escalators: Kone Elevator

Plumbing
Hansgrohe faucets, Sloan Faucets, Elkay drinking fountains elkay.com/

Energy
Energy management or building automation system: Johnson Controls www.johnsoncontrols.com/content/us/en.html

Photovoltaic system: Solar World www.solarworld-usa.com/

Other unique products that contribute to sustainability:
Heat pumps by Trane www.trane.com/index.aspx
Geothermal system by A-One Geothermal www.a-onegeothermal.com/
Jakob-Inox Greenscreen system

Add any additional building components or special equipment that made a significant contribution to this project:
Site and landscape products: Perficut perficut.com/

soil-tek www.soil-tek.com/     

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