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To complement your workday, we strive to provide a mix of convenient services, programs, and amenities that foster a thriving, connected community at your building, one that reflects the unique personality of your company and colleagues, as well as the surrounding neighborhood. We are pleased to provide you and your team with onsite services and amenities, which you can access and utilize as follows.  


A ”Fix It” station and a secured bicycle storage room with a capacity for up to 39 bicycles is located in the garage. There is no charge for use of the bike racks, but bicycle parking is first-come, first-served. While bikes cannot be left overnight, bike locks can be left overnight in the designated area located by the entry door.

All tenants using the bicycle room are required to register their bicycle with the Property Management Office and complete the Bicycle Parking Agreement and Release of Liability form before a key code will be provided. Release of Liability Form can be found on the website and submitted by email or in person to the Property Management Office. 


Bicyclists are directed to enter and exit the garage through the parking ramp located on Main Street. If the gate is closed, employees on bikes should scan their access badge at the card reader on the left side of the entry lane and security will open the garage gate. Please use caution and walk all bikes up and down the garage ramp.

As a reminder, bicycles are not allowed into tenant spaces or in passenger elevators. 



At Columbia, we rate our buildings through WiredScore, an international digital connectivity rating platform for commercial real estate that champions cutting-edge technology in office buildings. Certification through the WiredScore program provides you with the reassurance that your building can meet your team’s technology needs and gives you an easy resource to find the technology providers and points of access available at your building. 

221 Main is Wired Certified Gold.

Wired Certified Gold means a building provides you with access to multiple high-quality internet service providers and a variety of cabling types, including fiber. The infrastructure measures in place ensure connectivity sources are protected, redundant, and prepared to meet your current and future connectivity needs. 

On our property website, you will find an overview fact sheet of the connectivity and digital infrastructure features of the building. Available carriers are listed in case you are looking for a new or secondary internet connection. 

Because your building is WiredScore Certified, you also have access to WiredScore Connect. This complimentary concierge service is designed to help any tenant get quickly and easily set up with the internet service providers in their building, and compare service and pricing available to find the best alignment with your company’s specific needs. 

For direct assistance from WiredScore’s highly knowledgeable team, call 646.869.6000 or email, or visit to learn more.



AT&T and Comcast Business provide physical cable into the building. Both carriers provide fiber optic and coaxial connection into the building, and Comcast provides a coaxial connection for cable television. Other companies that provide fiber optic connection includes Century Link, Webpass, and Zayo. Services are also available from other companies that can utilize connections from the main providers into the building.

Many other services may be brought into the building via one of the carriers with a physical presence. Tenants seeking additional or alternative services should contact the desired provider and notify the Property Management Office.

More details about the available services can be found on our WiredScore Fact Sheet, available on our website or through the Property Management Office.


Capitol Communications is the Building’s Riser Manager, who will work with you and your service providers to arrange and approve access into the riser (telephone) closets and the MPOE. If you or your service providers need access into these spaces, please contact Capitol Communications at 415.861.1727.

Before any contractor may check out a key to a riser closet, they must first have clearance from our riser manager and present a valid certificate of insurance to the Property Management Office.


The Lightbox Café is located on Main Street and is open Monday through Friday from 7:30AM to 6PM. The Lightbox Café serves breakfast and lunch, along with a variety of drinks, pastries and deserts.   


The conference center located on the 4th floor offers a flexible space plan, audio/visual, complimentary Wi-Fi and access to the 4th floor roof terrace. All reservations are on a first-come, first-serve basis between the hours of 8 AM - 5 PM, Monday through Friday. 48-hour advance reservation is required. An executed Rules and Regulations agreement must be submitted by the meeting host prior to the reservation date. There is no fee to reserve the conference room, but fees for engineering, janitorial, or security may be required. A pre-function lounge is available for your guests to use before, during, or after the meeting.  


There are 2 Electric Vehicle Charging Stations (EVCS) located in the parking garage. They are managed through Blink. A Blink account is required for use.  


The Lost & Found is located in the Property Management Office and is available to visit during normal business hours.  Please be prepared to have supporting documentation/evidence to claim your item(s).

If you believe you have found an item that may have been lost by another Tenant or Visitor, please bring it to the Lobby Desk or the Property Management Office for safe keeping. Please include the location of where the item was found, as well date/time if possible.

 If you believe you have lost an item, please contact the Property Management Office to report the missing item, and we will try our best to help recover the missing item(s).


The Tenant Lounge offers Tenants an area to congregate and get work done. Unless reserved for a special event, the Tenant Lounge is available to Tenants and Tenant Visitors at any time and is located on the 4th floor.

The Tenant Lounge includes comfortable seating, power outlets, and task tables with built-in USB ports.


The Tenant Lounge is intended exclusively for Tenants and their Visitors.

If you would like to reserve the Tenant Lounge for a private event, please contact the Property Management Office for additional information/cost.


Incoming Mail
Regular U.S. mail is delivered directly to assigned mailboxes. The mailroom is located on the Basement level which can be accessed via the low-rise elevator bank (elevators one, two, and three). For questions relating to delivered material or delivery times, call the Post Office directly. The Postal Station numbers for service to this area are 800.275.8777 or 1.800.ASK.USPS. 

All incoming mail should be addressed as follows: 
Person’s Name
Tenant Company Name 
221 Main Street & Tenant Suite Number 
San Francisco, CA 94105

Please notify all client and other business associates of your proper mailing address.

Security does not accept or sign for tenant packages. Additionally, Property Management does not keep track of inbound and outbound packages. If a package is marked as delivered and is not found in the mailroom or tenant suite, please reach out to the freight company the parcel was shipped through. 


Outgoing Mail
An outgoing mailbox is located on the sidewalk behind the building on Spear Street. The Post Office projects one morning pick up and one afternoon pickup, based on route scheduling of the postal service. 

The nearest Post Office is located at 180 Steuart Street, San Francisco, CA 94105.

Express Mail Services 
There is one FedEx drop box and one UPS box located in the Mail Room. Both are serviced Monday through Friday at 5:00 PM. 


The Parking Garage is managed by Tower Valet Parking and is located on Main Street. The parking garage is open to the public Monday – Friday from 6:00AM – 8:00PM.  Although the garage is patrolled by building security, management is not responsible for vehicle theft or damage.  Please lock your vehicle at all times, and do not leave it in the garage overnight. 

After 8 PM, access is granted by access badge. 

Please keep in mind when using the Parking Garage:

  • Speed limit is 5 miles per hour
  • Be conscious of other Tenants and Visitors
  • Obey all posted signs

Parking rates are as follows:

  • All Day Maximum       $30.00
  • Oversized Vehicles     $45.00
  • Monthly Parking          $425.00

*Please note rates are subject to change at any time.



Monthly parkers arriving before 6:00AM on weekdays will need to leave their keys with building security at the desk in the lobby. Monthly parkers who leave the garage after 8:00PM will be able to pick up their keys from building security at the front desk.

Monthly parkers can use their access cards to enter and exit the garage after hours. Daily transient parkers will need to retrieve their vehicles before the garage closes at 8:00PM or call 415.341.1592 or 415.850.7391 to retrieve their vehicles after garage hours. Special arrangements can be made for after-hour retrieval. 

Monthly parking can be paid with cash, credit card (Visa or MasterCard), or check. Payment will still be due by the 1st of every month.

Checks should be made payable to: Tower Valet Parking, Inc. Please include your parking location (221 Main Street) on the check.

You can remit monthly parking checks to the address below or leave payment with the attendant at the garage booth.

Tower Valet Parking, Inc.
660 4th Street #808
San Francisco, CA 94107

For more information, please email


The Rooftop Terrace is available to Tenant employees and their Visitors (when accompanied by a Tenant employee) and can be accessed with an access badge.

The Terrace is to be shared by all Tenants unless it has been reserved for a special event by a Tenant through the Property Management Office – in which case, a notification will be sent to all Tenants.


If you would like to schedule a private event on the Terrace, please reach out to the Property Management Office for additional information.

For a full list of the Rules and Regulations for the Terrace please see the Forms section following the handbook or reach out to the Property Management Office. 


To ensure all Tenants’ safety, Security Escort Services to the Parking Garage is available between the hours of 8:00 PM and 10:00 PM, Monday through Friday (excluding Building Holidays) upon request. This service may be arranged by visiting the Main Lobby Desk and speaking with the Security Guard(s).

Please reach out to the Property Management Office with any questions.



You will find Showers for Tenant use located on the first floor.  Showers can be accessed via access badge. This amenity is available to all tenants and their employees. If your access badge does not have access, please ask the main point of contact from your office to place a Work Order on your behalf and indicate which facility (Men’s or Women’s) you would like access to.

Please ensure that all doors close behind you when entering/exiting the Showers for your and other Tenants’ safety.


Copyright 2024 by Columbia Property Trust.