Building Features

Building Address: 707 17th Street, Denver, Colorado 80202

Year Built: 1982

Building Size: 1,140,097 (550,805 rentable square feet, 511,100 Marriott Hotel use, 78,192 mechanical levels/areas)

Floors: 42 Total (20 hotel floors, 22 office floors)

Floorplates: Low Rise (Floors 21-31) – 24,415 rsf, High Rise (Floors 32-42) – 25,033 rsf

Roof: A Siplast Paradiene roof membrane (built up roof system) over concrete deck roof was installed in 1993 on the main roof. A Hi-Tuff Roofing System over concrete deck roof was installed in 1998 on the retail and swimming pool area roofs.

Stairwells: Two (2) pressurized stairwells are located in the Building core, on the 17th Street (Plaza) side and 18th Street side of the Building.

Loading Dock: Access to the basement level loading dock is from 18th Street and is shared with Johns Manville Plaza and the Marriott Hotel. The dock ceiling limit is 13’-6”.

Site: 707 17th Street/Marriott City Center Hotel is part of a full city block development which also contains the 29-story Johns Manville Plaza. The buildings share a 30,000 square foot plaza located adjacent to the buildings. This heavily landscaped plaza consists of mature trees, grass burns, flower gardens and seating areas for the enjoyment of tenants of both structures.

Construction: Concrete core and steel frame with a black reflective glass exterior.

Ceiling Height: 8’-6”

Slab-to-Slab Height: 12’

Bay Depth: 41 feet 17th Street, 18th Street; 49 feet California Street; 47 feet Stout Street (Low rise – 21-31); 74 feet Stout Street (High rise – 32-42)

Floor Loading: Live Load – 100lbs./s.f., Dead Load – 40lbs./s.f.

Heating: There are electric heat panels located in the ceiling, along the entire perimeter of the building envelope, that work in conjunction with the VAV boxes and EP switch. In addition, Xcel Energy District steam is provided to two (2) Bell & Gossett hot water converter with a combined capacity of 9,600,000 BTU’s per hour. The hot water is then supplied to the buildings two (2) 550 ton, flat plate heat exchangers, which supply hot water through the chilled water system to the fan coils located on each floor of the building.

Cooling: Variable-Air-Volume (VAV) cooling system. Interior and perimeter zones are served by individual VAV terminals with up to 32 zones per floor. All temperature controls are through pneumatically controlled thermostats.

Supply Fans: Individual floor fans manufactured by Mark-Hot Inc.; floors 21-42; 28,000 cfm each. One located on each floor with variable frequency drives.

Return Fans: Individual floor fans manufactured by Mark-Hot Inc.; floors 21-42; 25,000 cfm each. One located on each floor with variable frequency drives.

Chillers: Two (2) 800-ton Carrier Company electric centrifugal chillers, and one (1) 475-ton Carrier Company electric centrifugal chiller – installed in 2009.

Flat Plate Heat Exchanger: Two (2) 550-ton Tranter Inc. Superchanger plate and frame heat exchangers.

Energy Management System: Building systems are controlled by a Delta Comfort Works system. The system was originally upgraded in 1999. The system is currently being upgraded to a Carrier i-Vu Comfort Works system in 2010.

Cooling Towers: Three (3) 800-ton Marley Cooling Towers for the main condenser water loop with variable frequency drives. The towers were installed in 2001.

Evaporative Cooling Towers: Two (2) 280-ton Baltimore Air Coil cooling towers for the main tenant condenser water loop, supplies evaporative cooling for tenants AC units and data centers located within the building.

Independent Cooling: Each floor has individual controllable heating and cooling. The central air system can be programmed to provide air to each floor individually.

Electrical Capacity: 6-8 watts per square foot total capacity. 3.5 watts per square foot capacity without lighting.

Life/Safety System: Simplex Model 4100, installed in 2004.

Emergency Generator: A 1,000 kw Detroit diesel drive generator provides power to the Office Tower and Marriott Hotel, for emergency lighting, six elevators and life/safety equipment in the event of a power outage. A 4,000 gallon diesel fuel tank is shared with Johns Manville Plaza, Exactis.com and Verizon.

Fire Pump: A 750 gpm diesel drive fire pump is located adjacent to the dock ramp.

Passenger Elevators: Six (6) Otis Elevator, 3,500 lb. capacity, 700 fpm elevators service the low-rise (floors 21-31) portion of the Building.

Six (6) Otis Elevator, 3,500 lb. capacity, 1,000 fpm elevators service the high-rise (floors 31-42) portion of the Building.

Freight Elevator: One (1) Otis Elevator, 6,000 lb. capacity, 500 fpm elevator services floors 1 through 42 of the Building.

Telecommunications / Fiber Optic Providers: Cogent, Level 3, Verizon, Reliance Global and TW Telecom are all located in the Building and provide a variety of telecommunication services including Internet, local and long distance phone service.

Tenant Finishes

Doors: 8’x3’ solid oak, oak veneer

Ceiling: 2’x4’ Prelude 15/16” exposed tee grid system, 2’x4’ acoustic tile, 2’x2’ acoustic tile

Carpet: 32 oz. commercial grade. Tenants may choose from a variety of standard colors.

Lighting: 2’x4’ deep cell parabolic, 3 lamp. 2’x2’ deep cell parabolic, 2 lamp.

Design and Development Team

Architect: Hellmuth, Obata, Kassabaum, Inc. of St. Louis

Developer: Tri-Consultants Inc.