Lawson Building Hours
Below is a detailed listing of Lawson’s office/room hours. Only those with approved keys or fob access will be able to access the building and rooms when they are locked.
Any other persons requesting after-hour access to the Lawson building should contact David Leonard in LWSN 1151, Mail/Copy Room to apply for use of a key fob.
| Location | Days of the week | Times | Additional Hours | 
|---|---|---|---|
| Front Entrance Doors* | M-F | 7:00 AM - 10:30 PM | Sat 7:00 AM - 12:30 PM | 
| Southwest Entrance Doors | M-F | 7:00 AM - 10:30 PM | |
| North Entrance Doors | M-F | 7:00 AM - 10:30 PM | |
| LWSN Commons (1130) | M-F | 7:00 AM - 10:30 PM | Sat 7:00 AM - 12:30 PM | 
| University Meeting Room (1142) | M-F | 7:00 AM - 10:30 PM | |
| CS Instructional Labs(B146/B148/B158/B160) | M-F | 6:00 AM - 2:00 AM | (Closed for cleaning from 2 AM - 6 AM) | 
| CS Conference Rooms (1168/2150/3162/3102) | M-F | 8:00 AM - 5:00 PM | |
| CS Classrooms (1106/B134/B151/B155) | M-F | 7:00 AM - 10:30 PM | Sat 7:00 AM - 12:30 PM | 
| Graduate/Research Labs (2149/2161/3133/3151/B105/B107/B129/B132) | Key or Key Fob access only | ||
| Teaching Assistant (TA) Labs (B116) | Key or Key Fob access only | ||
| CS Department Head Suite (3144) | M-F | 8:00 AM - 5:00 PM | Closed for lunch 12:00 PM - 1:00 PM | 
| CS Corporate Sponsors Office (3144) | M-F | 8:00 AM - 5:00 PM | Closed for lunch 12:00 PM - 1:00 PM | 
| CS Development Office (3144) | M-F | 8:00 AM - 5:00 PM | Closed for lunch 12:00 PM - 1:00 PM | 
| CS Business Office (3130) | M-F | 8:00 AM - 5:00 PM | Closed for lunch 12:00 PM - 1:00 PM | 
| CS Facilities Suite (2116) | M-F | 8:00 AM - 5:00 PM | Closed for lunch 12:00 PM - 1:00 PM | 
| CS Undergrad Office (1123) | M-F | 8:00 AM - 5:00 PM | Closed for lunch 12:00 PM - 1:00 PM | 
| CS Grad Office (1137) | M-F | 8:00 AM - 5:00 PM | Closed for lunch 12:00 PM - 1:00 PM | 
| CS Mail/Copy Room (1151) | M-F | 8:00 AM - 5:00 PM | Closed for lunch 12:00 PM - 1:00 PM | 
| 3rd Floor Terrace/Balcony | M-F | 7:00 AM - 10:30 PM | Sat 7:00 AM – 12:30 PM | 
| 3rd Floor Terrace/Balcony Winter Hours | M-F | 7:00 AM - 5:00 PM | Sat 7:00 AM – 12:30 PM | 
*Lawson will be open at least one hour before and one hour after each Purdue home football game.
Lawson will be closed the following days:
- Thanksgiving Day and the Friday following Thanksgiving.
- Christmas Eve & Christmas Day
- New Year’s Eve & New Year’s Day
All questions should be directed to:
David Leonard
 Building Operations
LWSN Computer Science
 Purdue University 
 O: 765-494-6380
 rdleonar@purdue.edu 
 305 N. University St.
 West Lafayette, IN 47907