If you mean Pokemon FireRed/LeafGreen on the GBA, the mansion is in the top left corner of Cinnabar Island. (home of the seventh gym)
you fly 2 pallet town and surf south then u have to get through the Pokemon mansion
On cinnabar island. You can get to Cinnabar by using surf from Pallet Town. To use surf, you need to get Fuschias gym badge.
there in the yard of the Mansion hope I helped
there is a key in the Pokemon mansion... you need it to get into the gym... search the Pokemon mansion thoroughly
The Celadon Mansion is the large building by the Department Store and Pokemon Center.
The Pokemon Mansion is in Undella town.
You have to beat Sabrina then Surf from Pallet Town to Cinnabar Island. The Mansion is the building next to the Gym.
You have to go to the Pokemon mansion, This mansion is located in thee same town as the 7th gym leader. In the Pokemon mansion there will be many ways to walkthrough. (Hint, The mewtwo statues have switches.)
go to celistic town and talk to an old lady in building in the first floor
there is no Pokemon Mansion in Heartgold.
Gary is not in the Pokemon mansion.
There is no Pokemon mansion in sapphire.
on Cinnabar Island.Pokemon mansion is on cinnabar island if you don't know how to get there go to pallet town then go south surfing on one of your Pokemon and there your at cinnabar island.
There is no mansion in SoulSilver.the Pokemon mansion on cinnebar was destroyed when a volcano wreaked its havoc on the island.
in Pokemon blue you can get the Pokemon vulpix to the left of lavender town. or later on in the game in cinabar island you can go to the abandoned mansion and get a few fire types there.
The Pokemon mansion is south(Down) from hearthome city.
The Pokemon mansion is in Route 212 which is the route coming down from Hearthome city. (This will help if looked at on the town map as well).