The 5 Most Expensing Buildings in Toronto. 5- ROYAL BANK PLAZA, $1.2 Billion 4 - THE WELL, $1.4 Billion 3 - ONE BLOOR WEST $2 Billion 2 - CIBC SQUARE, $2.3 Billion 1 - PINNACLE ONE $4.4 Billion #toronto #torontobusiness