If you are wondering about this development and its inclusion of heritage-worthy properties, here are documents from the City Clerk giving notice that the City intends to designate both 141 Bathurst and 579 Richmond West as properties of cultural heritage value or interest.  
The intent of the notice is alert parties should they wish to object ... but the documents also make good reading and are included here:

• 141 Bathurst
• 579 Richmond West

Back in 2018 and 2019, a proposal for this property resulted in a mediated settlement as it wound its way through 
​Re-zoning application #16 191733 STE 20 OZ and OMB case #​PL170294.

Those interested should attend a Community Consultation Meeting which will be held online.  Instructions for participation can be found using this LINK.

City Council authorize the City Solicitor and the Director, Community Planning, Toronto and East York District to prepare and present a settlement, to be presented to the Local Planning Appeal Tribunal jointly with the applicant, based on the following:

• a maximum height of 50 metres including mechanical penthouse
• a loading space configuration to require vehicles to exit the site in a forward motion, without the need for a reversing motion from the loading space into the public lane
• a door on the servicing/loading area to help contain sound
• the Construction Management Plan to include vibration monitoring for the integrity of surrounding buildings
• the 3rd storey outdoor amenity terrace to include a landscaped buffer so that residents cannot get up to the edge and throw cigarette butts into neighbouring back yards

Reference:
http://app.toronto.ca/tmmis/viewAgendaItemHistory.do?item=2018.TE34.29

On June 27th, Councillor Cressy hosted a pre-application meeting to discuss this proposal for a a 19-storey mixed-use building containing 155 rental residential units on Bathurst Street south of Richmond.  Since then, an application has been made and details are available via the Supporting Documentation link in our sidebar.  As usual, urbantoronto.ca gives good coverage (click here).