South Mountain Residence Halls

Located closest to the campus core, these residence halls are also known as the red bricks. All six halls have a game room, laundry room, and study lounge as well as a front desk and community kitchen. Halls provide double- and triple-occupancy accommodations with community-style bath facilities. Each hall has three stories with two wings on each floor. Rooms are same gender and floors are mixed gender. The bathrooms on the first and second floors are all gender. The bathrooms are the third floor are single gender by wing.

The six halls are:

• Trinity Hall
• Santa Lucia Hall
• Muir Hall
• Sequoia Hall
• Fremont Hall
• Tenaya Hall

south mountain map

south mountain hall photos







Check-in, Cancelations and Check-out

Check-in: Whether you are checking in with us at the start of the year or mid-year, you will receive a pre-arrival email with all of your check-in instructions. In the summer, we update our Mustang Move-in website with extensive move-in information including packing lists, maps, and instructions. 

Room Condition Inventory: Within 72 hours of moving in, complete the Room Condition Inventory on your portal. It is important to do this so you are not charged for damage that wasn’t your fault when you check-out at the end of the year. Here’s how:

  • Log-in to your portal
  • Click on the University Housing tab
  • Click on the Room Condition tab
  • You will see a list of areas to review (your personal room, and any shared spaces in your apartment.) Click review for each area. Note: common areas will be viewable to all roommates but only needs to be completed by one.
  • Check each item in the list. If you agree with the condition, click agree.
  • If you do not agree with the condition, click more information, add a brief note about the problem (ex: the microwave isn’t working), and do not click accept.
  • When you have completed the review of all items, click save review at the bottom.
  • Continue your review until you have completed all the items on the list. 

Cancelation Requests: The Student Housing License Agreement is a binding legal contract for the Academic Year. A student is expected to honor the License Agreement for the duration of the agreement. It is the student’s responsibility to personally notify University Housing, in writing via the online Housing Cancellation form, if they plan to leave the University or vacate housing for an approved and verified reason. All cancellation information is located here

Mid-year Check-out: When you are prepared to check-out, do all of these steps or you will be charged with an improper check-out:

  1. Prep your room and move-out: clean, remove trash, put furniture back. Original furniture locations are in floor plans tab below.
  2. Complete express check-out in your portal and include photo(s) of your clean room
  3. Turn in your keys/access card to the express checkout box you indicated in the express checkout form. Make sure to write your info on the envelope provided.

End of year Check-out:

  1. Prep your room and move-out: clean, remove trash, put furniture back. Original furniture locations are in floor plans tab below.
  2. Complete Room Condition Form in Portal (instructions above)
  3. Complete express check-out in your portal and include photo(s) of your clean room
  4. Turn in your keys/access card to the express checkout box you indicated in the express checkout form. Make sure to write your info on the envelope provided.

Learning Community

Residential Learning Community placements and locations for the 2023-24 school year are now posted.


CSD (Coordinator of Student Development): Professional staff that live in the halls and supervise the RAs.
Resident Advisor (RA): Student peer leaders trained in safety and supervision and are on-call.
Front Desk: Student staff serve resident needs, answer questions and check out equipment. Your front desk is located in Trinity Hall. The front desk is open 8 a.m. - 9 p.m. on weekdays and 10 a.m. - 9 p.m. on weekends. Housing Admin (Bldg. 31) is open weekdays, 8 a.m. - 5 p.m.

Floor Plans & Furnishings

 Dimensions & Floorplans for South Mountain 
• Flooring: Carpet
• Closet: Wardrobe
• Compact refrigerator: in room
• Microwave: on each floor
• Bed Size: 38” x 80" (twin extra long)
• Desk and chair
• Small rolling file cabinet
• Chest of drawers
• Waste/recycle/compost bins
• Window coverings


  • Secure keycard access
  • WiFi
  • Community kitchen
  • Kitchen and game equipment for checkout
  • Daily cleaning service of bathrooms and common areas on weekdays
  • Free laundry
  • Study area
  • Pool table
  • Foosball table
  • Table tennis
  • Piano
  • Purified water fill stations
  • Vending Area
  • Basketball courts (behind Sierra Madre Hall and at yakʔitʸutʸu)
  • Volleyball courts (at yakʔitʸutʸu)
  • Disc golf (behind Sierra Madre Hall)
  • Built-in outdoor grill
  • Bike racks


Use the access card to enter your building. The hard key accesses your bedroom.

For lockouts during business hours: 

  • Contact Trinity Front Desk 806-756-5670 
  • Access card replacements are available at Bldg. 31, Cerro Vista or PCV. 

After hours, contact the Resident Advisor on-call for assistance with lockouts.

Help keep our community safe—don’t loan your personal access card and key to others..

Internet, Streaming TV and Phones

WiFi is available through all interior residential spaces, including Community Centers and in rooms.

WiFi Options: Use Eduroam for general use with phones, laptops, mobile devices. Use CP-IoT for gaming consoles, SmartTVs, media devices, speakers.

Wired: Every room is equipped with wired Ethernet ports either on the wall or on an Aruba Access Point. Wall ports labeled (X) and (Y) are active and available for use.

For general assistance with technology and network access, visit or call 805-756-7000.

Streaming T.V.
Residents have access to 150+ channels, including premium stations such as HBO and sports networks, in community spaces and on personal devices. To get connected, visit here.

A landline phone is provided in each community center. For campus calls, dial the last five digits of the telephone number. Dial 7 + 1 + 805 + the number for off campus calls. Long distance calls require a calling card.


Laundry rooms are located on the first floor of each wing. We have laundry monitoring so you can check for machine availability and get alerts when your laundry is done.


Mail and packages will be delivered to the Pacheco Post Package Center, located in the yakʔitʸutʸu complex. Once your mail is received and processed, an email will be sent to your Cal Poly email address containing all pick-up information and locker codes.


[Your Name]
[Mail Box #] Klamath Rd.
San Luis Obispo, CA 93410

The Mailbox # is assigned separately by Distribution Services and is not your room number. This is emailed to you before you move in.

Proper addressing is essential to prompt delivery of mail and packages. Mail is not forwarded during breaks or once you move off campus

Facility and Technology Maintenance Requests

For assistance with all facility-related issues (i.e. furnishings, room conditions, plumbing, electrical, etc.) complete a Maintenance Service Request on your Cal Poly Portal, Housing Tab. Please submit your request as early in the day as possible so it may be directed to the appropriate channel.

For assistance with all technology-related issues (internet, streaming T.V., connection issues, etc.) reach out to ResTech.

Sustainability Practices

In alignment with the campus sustainability goals, University Housing is working to be more sustainable by offering these services in our communities:

  • Move-out donation and recycling bins
  • Compost and recycling bins in every community
  • Clothing drives
  • Water filtration systems

Related Content

The Future of Housing

View Plans

Diversity & Inclusion

We are committed to creating equitable communities for all residents, staff and guests.

Find out how

Get Involved with Housing

Let's go!