And the crown for the tallest tower in San Francisco goes to Salesforce Tower. The building is expected to reach 867 feet today, surpassing the Transamerica Pyramid at 853 feet. It will grow another 200 feet to its final 1,070 feet, making it one of the tallest towers west of Chicago. (LA's Wilshire Grand stands 1,100 feet including its spire on top.) We snapped Salesforce Tower's progress, above, earlier this week.

The 61-story tower at 415 Mission St is being co-developed by Boston Properties and Hines, with Boston Properties owning a 95% interest and Hines holding a 5% interest. The final tower will have 1.4M SF of office space and 7k SF of rentable retail on the ground and fifth floors.

The building contains steel-reinforced concrete load-bearing elements that extend from the foundation into bedrock, unfinished ceilings, drop ceilings and high continuous clear glass windows. The top 150 feet of the tower will offer the highest public art light installation in the country. The tower is also pre-certified as a LEED Platinum project and will boast an HVAC system providing enhanced indoor air quality.

The next phases of construction include topping off core walls in November. Topping structural steel will begin in March. Base core and shell work will be completed during Q2 2017, and tenants will begin to take occupancy during Q4 2017. Pre-leases were issued earlier this year.