The "Garden Essence" lot in Willow Creek is a good size and costs the same (empty) as "Bargain Bend".
I built a 3 bed cheapie on Bargain bend for the BFF's and saved it to my library. Now, when I start a new game I put my sim family in another empty lot and pause the game. Then I go to manage Worlds and put the saved house on the Bargain bend lot. Move the BFF's there and then move my sim family onto Garden Essence after bulldozing the lot. I get a decent sized lot this way for the same outlay.