There are no big hotel in the immediate proximity to Carleton. The following are two Bed and Breakfast's near campus:

"A Rose on Colonel By" (613) 291-7831
(9 Rosedale Av.)

"Bye The Way B&B" (613) 232-6840
(310 First Av.)

When making a reservation, mention that you are a visitor to School of Math & Stat at Carleton University.

Recommended downtown hotel (near Rideau Canal) is: The Business Inn
180 MACLAREN ST
Ottawa, Ontario K2P 0N8
1-800-363-1777
http://www.thebusinessinn.com

The School of Mathematics and Statistics has a special (government) rate of $98+tax for the studio, $113+tax for 1-bedroom suite (mention that you are coming to School of Math & Stat, Carleton University).

Another hotel often used by visitors of University of Ottawa:

Quality Hotel (613) 789-7511
(290 Rideau St.)