I think the N3 twin is the lot directly west of the St. Louis in the E2 spot in the map that darwink posted. However, it looks like the little NE lot of the library might just be a little plaza space based on this plan:
The location for a new Airdrie Public Library will be the topic of discussion at Monday’s City Council meeting. In January the City of Airdrie contracted help from the Calgary Municipal Land Corporation to conduct key library stakeholder interviews...
Won’t compete with this but Airdrie is also getting a new library. 50,000 square foot facility going to be built at the location of the old downtown fire hall. I couldn’t find the article saying the decision was made. Only setting aside a little under $30 million for it I think.
This was expensive, but damn did they ever do it right. This marvelous building will be a dominant feature of downtown for our whole lives, and I am glad they spent the money ensuring it was as beautiful as envisioned. I hope Calgary never forgets this example and builds all large cultural projects to the same standard (or at least with the same vision!) Well done.