https://www.irvinecommunityconnection.com/master-planning-for-new-home-opportunities-completing-the-master-plan-in-north-irvine/
Looks like floor plan is changed.
Now home sizes range from 2,100 to over 4,200 square feet with lots upwards of 5,200 square feet.
Looks like OH4 will be home size from 3000 to 4000 sqft, not super big size home.
https://www.northirvineupdate.com/new-homes/
"The 257-acre neighborhood will include a 10-acre park with pool and amenities. On average, home sizes will be 3,000 to 4,000 square feet. Pricing will be determined...