Contact Us

Brampton (Head Office) 

21 Queen Street East,
Suite 500
Brampton, Ontario                                       
L6W 3P1

Click here for directions to our Brampton office.

Click here to see photos of our Brampton office.


Markham (Central & East GTA Office)

3601 Highway 7 East,
Suite 310
Markham, Ontario
L3R 0M3

Click here for directions to our Markham office.

Click here to see photos of our Markham office.


General Email:

Toll Free: 1-855-771-7266 

Phone: 905-796-5790
Fax: 905-796-5792











Staff Directory



Planning Associates


Michael Gagnon
Managing Principal Planner
Ext. 233

Andrew Walker
Principal Planner
Ext. 230

Richard Domes
Principal Planner
Ext. 229 

Lena Gagnon
Principal Administrator
Ext. 231

Marc De Nardis
Planning Associate
Ext. 257

Anthony Sirianni
Planning Associate
Ext. 262

Michelle Harris
Planning Associate
Ext. 227

Daryl Singh
Planning & Design Associate
Ext. 232





Marilyn Mascarenhas
Executive Assistant
Ext. 223

Terry Attrell
Executive Assistant
Ext. 224

Earta Williams
Filing Clerk/Assistant
Ext. 225



Read contributions by Michael Gagnon, Managing Principal Planner of Gagnon Walker Domes Ltd. (GWD) click here


For clips of videos
click here


For recent project and policy news
click here