222 Second Street | San Francisco, CA

Tishman Speyer commissioned the design and construction of a 26 story class “A” high rise office building. The building is located in the South of Market area of San Francisco.

Project Requirements


Install all the mechanical equipment on the roof and in a rooftop penthouse. Consisting of Boilers, Chiller and Cooling Towers. LEED and sustainable building design goals were at the forefront of the Owner’s vision for the development. 535,000 square feet gross area.


Stormwater retention for irrigation purposes and mitigate stormwater runoff from the site. Prefabricated plumbing systems to enable rapid installation and just in time delivery requirements. Emergency trench drains at firefighter elevator vestibules. Use of alternate plumbing materials and equipment to help meet project budget goals.

What ACCO Delivered


All the mechanical equipment is located on the roof and in a rooftop penthouse which consists of Boilers, Chiller and Cooling Towers. The building has a dedicated chilled water loop to serve floor by floor air handling units. There is a condenser water loop riser to serve future tenant supplemental cooling needs which can run 24/7. Tenant loops were partially run on each floor for ease of future tenant build out. Due to the tight floor to floor distances there was a substantial effort completed during the pre-construction effort to maintain the 9’-4” clearance to duct work. The project was delivered on time.


ACCO delivered a first-class design-build plumbing project. This project incorporated innovative design first to bring the cost down and still deliver the original project requirement. The project was delivered on time and on budget. Because ACCO was contracted for both HVAC and Plumbing the installation and coordination of trades took place with minimal rework outside of owner-driven changes.

Project Team

Owner: Tishman Speyer Properties
Architect: Gensler Architects
General Contractor: Turner Construction
Mechanical Engineer: ACCO Engineered Systems
Mechanical Contractor: ACCO Engineered Systems