Below each group is the amount of power you would get for one building at level 9 in total for each upgrade which coincidentally adds up to what you gain for a level 10 building, so with a Completion Grant that amount would be doubled.
Enjoy~


Farms/Quarries/Mines/Lumbermills
Level 1- 4
Level 2- 4
Level 3- 8
Level 4- 16
Level 5- 32
Level 6- 64
Level 7- 128
Level 8- 256
Level 9- 512
Level 10- 1024

One building=1024, 2048 with Completion Grants

Homes/Garrisons
Level 1- 10
Level 2- 10
Level 3- 20
Level 4- 40
Level 5- 80
Level 6- 160
Level 7- 320
Level 8- 640
Level 9- 1280
Level 10- 2560

One building=2560, 5,120 with Completion Grants

Factory/Rookery/Storage Vault/Metalsmith/Sentinel
Level 1- 20
Level 2- 20
Level 3- 40
Level 4- 80
Level 5- 160
Level 6- 320
Level 7- 640
Level 8- 1280
Level 9- 2560
Level 10- 5120

One building=5120 total, 10,240 with Completion Grants

Theater/Officer's Quarters/Muster Point/Science Center
Level 1- 30
Level 2- 30
Level 3- 60
Level 4- 120
Level 5- 240
Level 6- 480
Level 7- 960
Level 8- 1920
Level 9- 3840
Level 10- 7680

One building=7680 total, 15,360 with Completion Grants

Fortress/Wall/Dragon's Keep
Level 2- 100
Level 3- 100
Level 4- 200
Level 5- 400
Level 6- 800
Level 7- 1600
Level 8- 3200
Level 9- 6400
Level 10- 12800

One=12800, 25,600 with Completion Grants