According to the Sims Wiki, "In order to move onto a houseboat, it is required that one select a port first. They can move onto any of the pre-made ports with houseboats. Houseboats can also be built from scratch, so long as a barge or bow is selected for the port."
World: Isla Paradiso
Name: Port Pyre
Size: 30 x 40
Cost: N/A
World: Isla Paradiso
Name: Port Pepper
Size: 30 x 50
Cost: N/A
World: Isla Paradiso
Name: Port Pleasant
Size: 30 x 50
Cost: N/A
World: Isla Paradiso
Name: Port Perilous
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Port Placid
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Prominent Port
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Promising Port
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Pretty Port
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Premium Port
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Port Playa
Size: 30 x 50
Cost: N/A
World: Isla Paradiso
Name: Port Primavera
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Port Pescado
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Port Popular
Size: 30 x 50
Cost: N/A
World: Isla Paradiso
Name: Port Plenty
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Port Prosperous
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Pleasing Port
Size: 50 x 30
Cost: N/A
World: Isla Paradiso
Name: Peaceful Port
Size: 30 x 50
Cost: N/A
World: Isla Paradiso
Name: Picturesque Port
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Port Popular
Size: 30 x 50
Cost: N/A
World: Isla Paradiso
Name: Port Plenty
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Port Prosperous
Size: 25 x 50
Cost: N/A
World: Isla Paradiso
Name: Pleasing Port
Size: 50 x 30
Cost: N/A
World: Isla Paradiso
Name: Peaceful Port
Size: 30 x 50
Cost: N/A
World: Isla Paradiso
Name: Picturesque Port
Size: 25 x 50
Cost: N/A
Which is your favorite Port?