Oh nooooo I just received an email that the Tolhuistuin won't do the Day of Architecture on Saturday anymore! If you like, you can go on Sunday and they offer the tour every hour between 12.00 - 16.00. If you want to go, don't forget to bring headphones ;-).
I'm afraid I'm unavailable to go with you on Sunday as I have the C4C Vintage market in Trouw then - to which you're more than welcome of course and hang out in my lounge area...
For now I will have to cancel this event this Saturday and if you would like to do anything with the Day of Architecture on Saturday, check out their program: http://www.dagvandearchitectuuramsterdam.nl/wp/?portfolio=tolhuistuin.
I'm so sorry you guys! I was really looking forward to this trip and introduce you to the Tolhuistuin, because it's a magnificent spot!!