Information | Rezoning for Housing

Public hearing on April 22, 2024. Proposed rezoning will support more housing options in all communities.

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POSEIDONOnline is the submission site for electronic submissions directly to Water Development Resources by development industry applicants. POSEIDONOnline offers the ability for applicants to submit:

  • Subdivision Stormwater Management Reports (E-SWMR)
    • New
    • Iteration
    • Final
    • Revised Final
  • DP/DSSP (Private Site) Stormwater Management Reports (E-DPDSSP).
    • New
    • Iteration
    • Final
    • Revised Final
  • View Submissions Dashboard


POSEIDONOnline is accessed through The City's VISTA website, by selecting the 'Submit to Water' link located on the left hand side of the VISTA main page.

In order for applicants to use this service, applicants require a Registered Submission VISTA Log-In and be a Registered Consultant. POSEIDONOnline uses the same Log-Ins as VISTA. If an applicant does not currently have a Registered Consultant VISTA Log-In, one can be created from the VISTA site.

Please see this POSEIDONOnline document for more information or refer to ourfrequently asked questions document.

View Submissions

The POSEIDONOnline View Submissions page has been developed to provide applicants with up-to-date information on the status of Water only approvals submissions.

To view submissions, please follow the steps outlined in the following guide:

Guide to POSEIDONOnline View Submissions

City Online

As of June 16, 2014, Infrastructure Planning is pleased to make SWMRs, SMDPs and MDPs available through City Online.

For more information about report availability please contact

This information has no legal status and cannot be used as an official interpretation of the various bylaws, codes and regulations currently in effect. The City of Calgary accepts no responsibility to persons relying solely on this information. Web pages are updated periodically. ‚Äč