A newly released report from city staff says Toronto still has the authority to mandate new buildings meet certain climate and sustainability targets, despite concerns those powers could be undercut by a recent Ontario law.

The report set to go before the city's executive committee on Tuesday says there's "no impact" to the city's ability to apply its green standard to new development under the recently passed Bill 17, Protect Ontario by Building Faster and Smarter Act.

Several environmental and industry groups have suggested the law may prevent municipalities from setting standards beyond what's already required in the provincial building code.

Toronto's green standard is considered a key plank of the city's climate plan and is touted as a way to make new buildings more resilient to climate-fuelled extreme weather while cutting back on emissions.