I've started up a project to get a census of available houses across all worlds and data centers to try to give everyone an idea of how things stand. Maybe it will be informative, maybe not, but at least it will be something to look at.
I plan to visit all worlds in the same data center on the same day, and hope to visit all data centers within 2-3 days. I'll add each data center to this post after I visit it. Because my alts on all data centers except Crystal are low level, I won't be listing available houses in Shirogane.
If others would like to contribute numbers for Shirogane, I'll be happy to add them to my list plus get the numbers for Shirogane on Crystal for comparison.
The number of available houses are all listed as S / M / L.
Crystal Data Center - Oct 6
Balmung
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Brynhildr
Mist - 3 / 0 / 0
Goblet - 5 / 0 / 0
Lavender Beds - 3/ 0 / 0
Coeurl
Mist - 2 / 0 / 0
Goblet - 1 / 0 / 0
Lavender Beds - 1 / 0 / 0
Diablos
Mist - 2 / 0 / 0
Goblet - 4/ 0 / 0
Lavender Beds - 1 / 0 / 0
Goblin
Mist - 1 / 0 / 0
Goblet - 5/ 0 / 0
Lavender Beds - 0 / 0 / 0
Malboro
Mist - 3 / 0 / 0
Goblet - 5/ 1 / 0
Lavender Beds - 7/ 0 / 0
Mateus
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Zalera
Mist - 2 / 1 / 0
Goblet - 1 / 0 / 0
Lavender Beds - 1 / 0 / 0
Aether Data Center - Oct 6 - Shiro as of Oct 8 (ty Hyomin Park)
Adamantoise
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Shirogane - 0 / 0 / 0
Cactuar
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Shirogane - 1 / 0 / 0
Faerie
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 1 / 0 / 0
Shirogane - 0 / 0 / 0
Gilgamesh
Mist - 0/ 0 / 0
Goblet - 2 / 0 / 0
Lavender Beds - 0/ 0 / 0
Shirogane - 1 / 0 / 0
Jenova
Mist - 1 / 0 / 0
Goblet - 1/ 0 / 0
Lavender Beds - 1/ 0 / 0
Shirogane - 0 / 0 / 0
Midgardsormr
Mist - 0/ 0 / 0
Goblet - 1 / 0 / 0
Lavender Beds - 0 / 0 / 0
Shirogane - 1 / 0 / 0
Sargatanas
Mist - 0 / 0 / 0
Goblet - 1 / 0 / 0
Lavender Beds - 0 / 0 / 0
Shirogane - 0 / 0 / 0
Siren
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 2 / 0 / 0
Shirogane - 0 / 0 / 0
Primal Data Center - Oct 6
Behemoth
Mist - 0 / 0 / 0
Goblet - 4 / 0 / 0
Lavender Beds - 1 / 0 / 0
Excalibur
Mist - 2 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Exodus
Mist - 2 / 0 / 0
Goblet - 2 / 0 / 0
Lavender Beds - 0 / 0 / 0
Famfrit
Mist - 1 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 1 / 0 / 0
Hyperion
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Lamia
Mist - 0 / 0 / 0
Goblet - 1 / 0 / 0
Lavender Beds - 0 / 0 / 0
Leviathan
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Ultros
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 1 / 0 / 0
Chaos Data Center - Oct 7
Cerberus
Mist - 1/ 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Louisoix
Mist - 53/ 0 / 0
Goblet - 123/ 1 / 0
Lavender Beds - 38 / 0 / 0
Moogle
Mist - 0 / 0 / 0
Goblet - 1 /0/ 0
Lavender Beds - 0 / 0 / 0
Omega
Mist - 2 / 0 / 0
Goblet - 29 / 0 / 0
Lavender Beds - 7 / 0 / 0
Ragnarok
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Spriggan (New, FC only)
Mist - 645 / 185 / 10
Goblet - 699 / 236 / 94
Lavender Beds - 648 /155 / 26
Light Data Center - Oct 7
Lich
Mist - 0 / 0 / 0
Goblet - 1 / 0 / 0
Lavender Beds - 3 / 0 / 0
Odin
Mist - 0 / 0 / 0
Goblet - 2 / 0 / 0
Lavender Beds - 0 / 0 / 0
Phoenix
Mist - 2 / 0 / 0
Goblet - 1 / 0 / 0
Lavender Beds - 0 / 0 / 0
Shiva
Mist - 1 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Twintania (New, FC only)
Mist - 635 / 185 / 2
Goblet - 700 / 244 / 91
Lavender Beds - 656 / 141 / 20
Zodiark
Mist - 0 / 0 / 0
Goblet - 2/ 0 / 0
Lavender Beds - 1 / 0 / 0
Elemental Data Center - Oct 8 (auto-demo has been suspended since Sept 13)
Aegis
Mist - 0 / 0 / 0
Goblet - 73 / 0 / 0
Lavender Beds - 0 / 0 / 0
Atomos
Mist - 1 / 0 / 0
Goblet - 207/ 1 / 0
Lavender Beds - 0 / 0 / 0
Carbuncle
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Garuda
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Gungnir
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Kujata
Mist - 0 / 0 / 0
Goblet - 104 / 2 / 0
Lavender Beds - 0 / 0 / 0
Ramuh
Mist - 0 / 0 / 0
Goblet - 60 / 0 / 0
Lavender Beds - 0 / 0 / 0
Tonberry
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Typhon
Mist - 0 / 0 / 0
Goblet - 247/ 30 / 0
Lavender Beds - 5 / 0 / 0
Unicorn
Mist - 0 / 0 / 0
Goblet - 24 / 0 / 0
Lavender Beds - 0 / 0 / 0
Gaia Data Center - Oct 8 (auto-demo has been suspended since Sept 13)
Alexander
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Bahamut
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Durandal
Mist - 1 / 0 / 0
Goblet - 180 / 0 / 0
Lavender Beds - 0 / 0 / 0
Fenrir
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Ifrit
Mist - 0 / 0 / 0
Goblet - 72 / 5 / 0
Lavender Beds - 0 / 0 / 0
Ridill
Mist - 0 / 0 / 0
Goblet - 77 / 0 / 0
Lavender Beds - 0 / 0 / 0
Tiamat
Mist - 0 / 0 / 0
Goblet - 138 / 0 / 0
Lavender Beds - 0 / 0 / 0
Ultima
Mist - 0 / 0 / 0
Goblet - 42 / 1 / 0
Lavender Beds - 0 / 0 / 0
Valefor
Mist - 0 / 0 / 0
Goblet - 154 / 2 / 0
Lavender Beds - 1 / 0 / 0
Yojimbo
Mist - 0 / 0 / 0
Goblet - 135 / 0 / 0
Lavender Beds - 1 / 0 / 0
Zeromus
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Mana Data Center - Oct 8 (auto-demo has been suspended since Sept 13)
Anima
Mist - 0 / 0 / 0
Goblet - 1 / 0 / 0
Lavender Beds - 0 / 0 / 0
Asura
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Belias
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Chocobo
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Hades
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Ixion
Mist - 0 / 0 / 0
Goblet - 2 / 0 / 0
Lavender Beds - 0 / 0 / 0
Mandragora
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Masamune
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Pandaemonium
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Shinryu
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0
Titan
Mist - 0 / 0 / 0
Goblet - 0 / 0 / 0
Lavender Beds - 0 / 0 / 0