How long will your design take?
If you're planning interior design you can start any time! The sooner you start, the sooner you'll have your house in the condition that you want it to be in, and the sooner you can enjoy it.
If you're contemplating an addition or exterior alteration, it's ideal to start planning your project early. Depending on your area, it is smart to have enough time to develop the design drawings and submit your project for Planning Department approval.
Typically the five phases described above takes 15 weeks to complete.