Item - 2024.SC17.3

The Scarborough Community Council recommends that:

1. City Council designate the lands municipally known as 673 Warden Avenue, as a Class 4 Noise Area pursuant to Ministry of Environment Environmental Noise Guideline - Stationary and Transportation Sources - Approval and Planning Publication NPC-300, August 2013, as shown in Attachment 2 to the report (October 11, 2024) from the Director, Community Planning, Scarborough District.

2. City Council direct the Executive Director, Development Review Division or their designate to forward a copy of the City Council Decision Document to the Ministry of Environment Conservation and Parks (MECP).

This report recommends that City Council designate the lands known municipally as 673 Warden Avenue as a Class 4 Noise Area under the NPC-300 noise guidelines administered by the Ministry of Environment, Conservation and Parks (MECP).

On May 22, 2024, City Council adopted a settlement offer related to the Zoning By-law Amendment application for the subject site which permits the lands at 673 Warden Avenue to be redeveloped with a 27-storey mixed use building with a 6-storey podium. The development would have a total gross floor area of approximately 21,909 square metres, of which 21,560 square metres is residential GFA and 348.4 square metres is non-residential GFA. A total of 314 residential units are proposed.

A detailed Land Use Compatibility Assessment, including Nosie Impact Study, was prepared by Gradient Wind Engineering Inc. to support the proposed development at 673 Warden Avenue. This assessment recommends the site for a Class 4 designation as defined in the Ministry of Environment, Conservation and Parks publication NPC-300. The study was peer-reviewed by Valcoustics Canada Ltd., the engineering consultant for an adjacent non-residential landowner (Tradition Fine Foods) which offers concurrence with the recommendation that a Class 4 area designation for the site is appropriate.

A Class 4 Area designation allows for higher daytime and night-time sound level limits than would otherwise be permitted in relation to a noise sensitive land use such as residential dwellings and associated outdoor living areas. Any impact of such higher levels would be mitigated by noise control measures that are part of the development. Similarly, the slight increase in permitted noise levels provides for the continued operation of surrounding employment uses and compatibility with those uses and new residential uses on the subject lands. The Class 4 designation would apply to this development site only. Any future developments on other sites in proximity to employment uses in the Warden Woods Secondary Plan area would be subject to a separate peer-review process.