City of Vancouver Proposed Rainwater Requirements
UDI Lower Mainland submission to the City of Vancouver.
In 2025, the City of Vancouver requested feedback on proposed rainwater management requirements. Although the City intended to reduce costs and delays, UDI wanted to ensure that these cost savings are realized, given that builders will be paying more for larger and complex detention tanks.

βAs referenced in the Cityβs own report of last September, there are approximately 19,300 units with approved rezonings that are not necessarily moving forward. This backlog of unrealized homes highlights a critical gap between approvals and actual housing delivery.β