PERMITS - 2 bedroom to 5 bedroom

[Susan Capeta]

I'm in los angeles. How hard is it and how expensive is it to get the permit to convert a single family house from 2 bedroom to 5 bedroom.. just the permit cost.. the house is currently 1000 sq ft living space and 7000 sq ft lot.. there is a lot of room.. i want to do everythign the right way...

i already have the cost for construction.. 

1. will the city allow me to turn 2 bedroom single family to 5 bedroom?

2. if it is possible how come many flippers dont do it.. 5 bedroom usually sells for more.

3. how much would it cost for just the permit?

4. how long would the permit process take to get approved.