Lets break this down . If you are on these servers Bahamut / Behemoth / Cactuar / Carbuncle / Chocobo / Diabolos / Fenrir / Garuda / Gilgamesh / Ifrit / Leviathan / Mandragora / Midgardsormr / Odin / Ramuh / Shiva / Siren / Tiamat / Titan / Tonberry / Ultros ( i am on Diabolos ) this is our price tag for housing (some cheaper some more expensive depending on your server )
Small
class 5 = 8mil
class 4 = 8.5mil
class 3 = 9mil
class 2 = 9.8mil
class 1 = 10mil
Medium
class 5 = 30mil
class 4 = 31.875mil
class 3 = 33.75mil
class 2 = 35.625mil
class 1 = 37.5mil
Large
Class 5 = 100mil
class 4 = 106.250mil
class 3 = 112.5mil
class 2 = 118.750mil
class 1 = 125mil
If your a FC with say 5 people and your looking for the small house the cheapest one is 8mil . And lets say if you just save 20k a day per member to put down for the house that would be 100k each per day . ( assuming all 5 members are playing that day ) it will take you and your FC 80 days to get the smallest home on the cheapest land . Or 100 days for the smallest but best piece of land . 100 days = little over 3 months and that is IF all 5 members farm everyday and save 20k each .
Now lets look at the same FC who wants the huge house . For the Giggles of it . 5 FC members who want to save for the HUGE house at the same rate . 100mil cheapest large house will take that FC 1,000 days or over 2 and a half YEARS to get this level of a house again IF everyone everyday saves 20k a day . Now for the most expensive 125mil will take 1,250 days or about 3 years and 5 months . With 5 FC members .
Do the math if your FC has 10 members cut the totals down in half if you have 20 members half the total again . Active members that is . I know FC who have 50 or 100 members but only 10 or 20 active . This will be a long long term investment if you want the large house ( i do ) . Good luck to everyone on climbing this mountain . ( the 20k saving per player is just a example there are lots of ways to make Gil and different amounts people can save per day / week )